./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.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_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/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_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/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_69ef820b-45e5-45bd-bb7c-4fddcee71543/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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:41:09,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:41:09,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:41:09,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:41:09,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:41:09,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:41:09,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:41:09,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:41:09,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:41:09,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:41:09,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:41:09,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:41:09,803 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:41:09,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:41:09,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:41:09,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:41:09,805 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:41:09,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:41:09,805 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:41:09,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:41:09,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:41:09,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:41:09,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:41:09,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:41:09,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:41:09,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:41:09,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:41:09,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:41:09,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:41:09,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:41:09,808 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_69ef820b-45e5-45bd-bb7c-4fddcee71543/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 -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2024-11-13 15:41:10,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:41:10,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:41:10,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:41:10,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:41:10,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:41:10,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i Unable to find full path for "g++" [2024-11-13 15:41:12,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:41:13,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:41:13,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2024-11-13 15:41:13,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/data/7c7a026ea/f5b4ce9673124da69c3a9d08ef6bb21f/FLAG87e7ad57e [2024-11-13 15:41:13,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/data/7c7a026ea/f5b4ce9673124da69c3a9d08ef6bb21f [2024-11-13 15:41:13,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:41:13,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:41:13,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:41:13,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:41:13,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:41:13,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:13,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbcf86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13, skipping insertion in model container [2024-11-13 15:41:13,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:13,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:41:13,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:41:13,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:41:13,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:41:13,983 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:41:13,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13 WrapperNode [2024-11-13 15:41:13,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:41:13,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:41:13,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:41:13,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:41:13,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,035 INFO L138 Inliner]: procedures = 268, calls = 104, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2024-11-13 15:41:14,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:41:14,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:41:14,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:41:14,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:41:14,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:41:14,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:41:14,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:41:14,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:41:14,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (1/1) ... [2024-11-13 15:41:14,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:41:14,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:14,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:41:14,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:41:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:41:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:41:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:41:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:41:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:41:14,149 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 15:41:14,307 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:41:14,310 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:41:14,823 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:41:14,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:41:14,860 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:41:14,861 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:41:14,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:14 BoogieIcfgContainer [2024-11-13 15:41:14,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:41:14,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:41:14,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:41:14,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:41:14,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:41:13" (1/3) ... [2024-11-13 15:41:14,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@808a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:41:14, skipping insertion in model container [2024-11-13 15:41:14,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:13" (2/3) ... [2024-11-13 15:41:14,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@808a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:41:14, skipping insertion in model container [2024-11-13 15:41:14,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:14" (3/3) ... [2024-11-13 15:41:14,875 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2024-11-13 15:41:14,887 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:41:14,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_09-tricky_address4.i that has 2 procedures, 191 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-13 15:41:14,889 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:41:15,001 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:41:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 194 transitions, 392 flow [2024-11-13 15:41:15,187 INFO L124 PetriNetUnfolderBase]: 4/193 cut-off events. [2024-11-13 15:41:15,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:41:15,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 4/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2024-11-13 15:41:15,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 194 transitions, 392 flow [2024-11-13 15:41:15,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 193 transitions, 389 flow [2024-11-13 15:41:15,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:41:15,244 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;@8fa2808, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:41:15,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 15:41:15,294 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:41:15,296 INFO L124 PetriNetUnfolderBase]: 4/143 cut-off events. [2024-11-13 15:41:15,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:41:15,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:15,297 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:15,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:15,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash 320043238, now seen corresponding path program 1 times [2024-11-13 15:41:15,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:15,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381397454] [2024-11-13 15:41:15,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:15,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:15,986 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 15:41:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381397454] [2024-11-13 15:41:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381397454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:15,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:15,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:41:15,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475955996] [2024-11-13 15:41:15,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:16,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:41:16,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:16,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:41:16,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:41:16,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 194 [2024-11-13 15:41:16,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 193 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 15:41:16,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:16,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 194 [2024-11-13 15:41:16,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:16,169 INFO L124 PetriNetUnfolderBase]: 7/254 cut-off events. [2024-11-13 15:41:16,170 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:41:16,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 254 events. 7/254 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 6 based on Foata normal form. 5/247 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-11-13 15:41:16,172 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 10 selfloop transitions, 2 changer transitions 1/191 dead transitions. [2024-11-13 15:41:16,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 191 transitions, 409 flow [2024-11-13 15:41:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:41:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:41:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-13 15:41:16,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9570446735395189 [2024-11-13 15:41:16,190 INFO L175 Difference]: Start difference. First operand has 193 places, 193 transitions, 389 flow. Second operand 3 states and 557 transitions. [2024-11-13 15:41:16,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 191 transitions, 409 flow [2024-11-13 15:41:16,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 191 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:41:16,201 INFO L231 Difference]: Finished difference. Result has 195 places, 190 transitions, 392 flow [2024-11-13 15:41:16,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=195, PETRI_TRANSITIONS=190} [2024-11-13 15:41:16,208 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 2 predicate places. [2024-11-13 15:41:16,208 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 190 transitions, 392 flow [2024-11-13 15:41:16,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 15:41:16,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:16,209 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:16,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:41:16,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:16,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash 563859081, now seen corresponding path program 1 times [2024-11-13 15:41:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:16,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810998837] [2024-11-13 15:41:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:16,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810998837] [2024-11-13 15:41:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810998837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:16,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821800114] [2024-11-13 15:41:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:16,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:16,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:16,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:41:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:16,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:41:16,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:16,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:41:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:16,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821800114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:41:16,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:41:16,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:41:16,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732918470] [2024-11-13 15:41:16,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:41:16,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:41:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:41:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:41:16,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 194 [2024-11-13 15:41:16,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 190 transitions, 392 flow. Second operand has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 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 15:41:16,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:16,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 194 [2024-11-13 15:41:16,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:17,149 INFO L124 PetriNetUnfolderBase]: 7/260 cut-off events. [2024-11-13 15:41:17,149 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:41:17,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 260 events. 7/260 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 323 event pairs, 6 based on Foata normal form. 2/251 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-11-13 15:41:17,152 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 14 selfloop transitions, 9 changer transitions 0/198 dead transitions. [2024-11-13 15:41:17,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 198 transitions, 456 flow [2024-11-13 15:41:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:41:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:41:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1618 transitions. [2024-11-13 15:41:17,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9266895761741123 [2024-11-13 15:41:17,158 INFO L175 Difference]: Start difference. First operand has 195 places, 190 transitions, 392 flow. Second operand 9 states and 1618 transitions. [2024-11-13 15:41:17,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 198 transitions, 456 flow [2024-11-13 15:41:17,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 198 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:41:17,163 INFO L231 Difference]: Finished difference. Result has 204 places, 196 transitions, 440 flow [2024-11-13 15:41:17,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=440, PETRI_PLACES=204, PETRI_TRANSITIONS=196} [2024-11-13 15:41:17,164 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 11 predicate places. [2024-11-13 15:41:17,164 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 196 transitions, 440 flow [2024-11-13 15:41:17,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 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 15:41:17,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:17,166 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:17,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:41:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:17,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1269197993, now seen corresponding path program 2 times [2024-11-13 15:41:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:17,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602164591] [2024-11-13 15:41:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:17,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:17,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602164591] [2024-11-13 15:41:17,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602164591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:17,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144259337] [2024-11-13 15:41:17,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:41:17,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:17,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:17,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:17,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:41:17,953 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:41:17,953 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:41:17,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 15:41:17,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:18,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:41:18,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 15:41:18,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:41:18,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 15:41:18,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:41:18,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 15:41:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:41:18,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:41:18,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144259337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:18,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:41:18,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 15:41:18,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950941688] [2024-11-13 15:41:18,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:18,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:41:18,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:41:18,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:41:19,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 194 [2024-11-13 15:41:19,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 196 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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 15:41:19,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:19,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 194 [2024-11-13 15:41:19,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:19,547 INFO L124 PetriNetUnfolderBase]: 129/701 cut-off events. [2024-11-13 15:41:19,547 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 15:41:19,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 701 events. 129/701 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3517 event pairs, 46 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 888. Up to 178 conditions per place. [2024-11-13 15:41:19,557 INFO L140 encePairwiseOnDemand]: 183/194 looper letters, 43 selfloop transitions, 22 changer transitions 0/237 dead transitions. [2024-11-13 15:41:19,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 237 transitions, 652 flow [2024-11-13 15:41:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:41:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:41:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2024-11-13 15:41:19,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9175257731958762 [2024-11-13 15:41:19,562 INFO L175 Difference]: Start difference. First operand has 204 places, 196 transitions, 440 flow. Second operand 6 states and 1068 transitions. [2024-11-13 15:41:19,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 237 transitions, 652 flow [2024-11-13 15:41:19,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 237 transitions, 646 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 15:41:19,572 INFO L231 Difference]: Finished difference. Result has 212 places, 218 transitions, 580 flow [2024-11-13 15:41:19,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=212, PETRI_TRANSITIONS=218} [2024-11-13 15:41:19,573 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 19 predicate places. [2024-11-13 15:41:19,575 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 218 transitions, 580 flow [2024-11-13 15:41:19,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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 15:41:19,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:19,576 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:19,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:41:19,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:19,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:19,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash 55499130, now seen corresponding path program 1 times [2024-11-13 15:41:19,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:19,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797711443] [2024-11-13 15:41:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:19,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:20,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:20,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797711443] [2024-11-13 15:41:20,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797711443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:20,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085174497] [2024-11-13 15:41:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:20,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:20,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:20,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:20,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:41:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:20,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:41:20,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:20,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:41:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:20,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085174497] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:41:20,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:41:20,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 15:41:20,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816157815] [2024-11-13 15:41:20,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:41:20,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:41:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:41:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:41:20,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 194 [2024-11-13 15:41:20,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 218 transitions, 580 flow. Second operand has 18 states, 18 states have (on average 179.0) internal successors, (3222), 18 states have internal predecessors, (3222), 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 15:41:20,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:20,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 194 [2024-11-13 15:41:20,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:20,992 INFO L124 PetriNetUnfolderBase]: 41/536 cut-off events. [2024-11-13 15:41:20,993 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-13 15:41:20,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 536 events. 41/536 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2214 event pairs, 16 based on Foata normal form. 4/513 useless extension candidates. Maximal degree in co-relation 629. Up to 55 conditions per place. [2024-11-13 15:41:21,001 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 18 selfloop transitions, 21 changer transitions 0/236 dead transitions. [2024-11-13 15:41:21,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 236 transitions, 746 flow [2024-11-13 15:41:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:41:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 15:41:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3760 transitions. [2024-11-13 15:41:21,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9229258713794797 [2024-11-13 15:41:21,020 INFO L175 Difference]: Start difference. First operand has 212 places, 218 transitions, 580 flow. Second operand 21 states and 3760 transitions. [2024-11-13 15:41:21,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 236 transitions, 746 flow [2024-11-13 15:41:21,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 236 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:41:21,035 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 710 flow [2024-11-13 15:41:21,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=710, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2024-11-13 15:41:21,036 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 44 predicate places. [2024-11-13 15:41:21,036 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 710 flow [2024-11-13 15:41:21,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 179.0) internal successors, (3222), 18 states have internal predecessors, (3222), 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 15:41:21,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:21,040 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:21,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:41:21,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:21,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:21,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:21,243 INFO L85 PathProgramCache]: Analyzing trace with hash -326607430, now seen corresponding path program 2 times [2024-11-13 15:41:21,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:21,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911258346] [2024-11-13 15:41:21,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:21,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:22,006 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:22,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:22,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911258346] [2024-11-13 15:41:22,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911258346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064448596] [2024-11-13 15:41:22,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:41:22,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:22,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:22,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:22,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:41:22,161 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:41:22,161 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:41:22,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 15:41:22,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:22,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:41:22,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 15:41:22,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:41:22,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 15:41:22,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:41:22,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 15:41:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-13 15:41:22,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:41:22,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064448596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:22,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:41:22,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 15:41:22,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892875541] [2024-11-13 15:41:22,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:22,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:41:22,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:22,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:41:22,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:41:23,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 194 [2024-11-13 15:41:23,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 231 transitions, 710 flow. Second operand has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 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 15:41:23,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:23,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 194 [2024-11-13 15:41:23,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:23,830 INFO L124 PetriNetUnfolderBase]: 306/1368 cut-off events. [2024-11-13 15:41:23,831 INFO L125 PetriNetUnfolderBase]: For 287/297 co-relation queries the response was YES. [2024-11-13 15:41:23,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 1368 events. 306/1368 cut-off events. For 287/297 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9040 event pairs, 116 based on Foata normal form. 5/1260 useless extension candidates. Maximal degree in co-relation 2308. Up to 464 conditions per place. [2024-11-13 15:41:23,840 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 72 selfloop transitions, 36 changer transitions 2/288 dead transitions. [2024-11-13 15:41:23,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 288 transitions, 1082 flow [2024-11-13 15:41:23,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:41:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:41:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1054 transitions. [2024-11-13 15:41:23,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9054982817869416 [2024-11-13 15:41:23,844 INFO L175 Difference]: Start difference. First operand has 237 places, 231 transitions, 710 flow. Second operand 6 states and 1054 transitions. [2024-11-13 15:41:23,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 288 transitions, 1082 flow [2024-11-13 15:41:23,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 288 transitions, 1058 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 15:41:23,853 INFO L231 Difference]: Finished difference. Result has 240 places, 263 transitions, 938 flow [2024-11-13 15:41:23,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=240, PETRI_TRANSITIONS=263} [2024-11-13 15:41:23,855 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 47 predicate places. [2024-11-13 15:41:23,855 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 263 transitions, 938 flow [2024-11-13 15:41:23,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 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 15:41:23,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:23,857 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:23,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:41:24,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:24,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:24,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2040689309, now seen corresponding path program 1 times [2024-11-13 15:41:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:24,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530328228] [2024-11-13 15:41:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:24,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:24,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530328228] [2024-11-13 15:41:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530328228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220091358] [2024-11-13 15:41:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:24,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:24,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:24,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:41:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:24,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:41:24,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:25,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:41:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:25,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220091358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:41:25,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:41:25,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 15:41:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351790541] [2024-11-13 15:41:25,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:41:25,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:41:25,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:25,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:41:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:41:25,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 194 [2024-11-13 15:41:25,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 263 transitions, 938 flow. Second operand has 23 states, 23 states have (on average 179.08695652173913) internal successors, (4119), 23 states have internal predecessors, (4119), 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 15:41:25,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:25,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 194 [2024-11-13 15:41:25,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:26,152 INFO L124 PetriNetUnfolderBase]: 120/974 cut-off events. [2024-11-13 15:41:26,153 INFO L125 PetriNetUnfolderBase]: For 415/415 co-relation queries the response was YES. [2024-11-13 15:41:26,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 974 events. 120/974 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6018 event pairs, 33 based on Foata normal form. 3/918 useless extension candidates. Maximal degree in co-relation 1568. Up to 134 conditions per place. [2024-11-13 15:41:26,165 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 21 selfloop transitions, 30 changer transitions 0/280 dead transitions. [2024-11-13 15:41:26,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 280 transitions, 1162 flow [2024-11-13 15:41:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 15:41:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 15:41:26,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5364 transitions. [2024-11-13 15:41:26,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9216494845360824 [2024-11-13 15:41:26,181 INFO L175 Difference]: Start difference. First operand has 240 places, 263 transitions, 938 flow. Second operand 30 states and 5364 transitions. [2024-11-13 15:41:26,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 280 transitions, 1162 flow [2024-11-13 15:41:26,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 280 transitions, 1138 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-13 15:41:26,194 INFO L231 Difference]: Finished difference. Result has 272 places, 273 transitions, 1066 flow [2024-11-13 15:41:26,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1066, PETRI_PLACES=272, PETRI_TRANSITIONS=273} [2024-11-13 15:41:26,196 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 79 predicate places. [2024-11-13 15:41:26,196 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 273 transitions, 1066 flow [2024-11-13 15:41:26,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 179.08695652173913) internal successors, (4119), 23 states have internal predecessors, (4119), 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 15:41:26,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:26,199 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:26,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:41:26,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 15:41:26,400 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:26,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash -705769690, now seen corresponding path program 2 times [2024-11-13 15:41:26,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:26,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197030620] [2024-11-13 15:41:26,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:26,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 15:41:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197030620] [2024-11-13 15:41:27,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197030620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:27,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:27,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:41:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311209981] [2024-11-13 15:41:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:27,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:41:27,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:41:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:41:28,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 194 [2024-11-13 15:41:28,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 273 transitions, 1066 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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 15:41:28,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:28,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 194 [2024-11-13 15:41:28,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:28,885 INFO L124 PetriNetUnfolderBase]: 306/1491 cut-off events. [2024-11-13 15:41:28,886 INFO L125 PetriNetUnfolderBase]: For 882/922 co-relation queries the response was YES. [2024-11-13 15:41:28,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3358 conditions, 1491 events. 306/1491 cut-off events. For 882/922 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10334 event pairs, 72 based on Foata normal form. 10/1455 useless extension candidates. Maximal degree in co-relation 3050. Up to 456 conditions per place. [2024-11-13 15:41:28,897 INFO L140 encePairwiseOnDemand]: 183/194 looper letters, 80 selfloop transitions, 49 changer transitions 0/339 dead transitions. [2024-11-13 15:41:28,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 339 transitions, 1623 flow [2024-11-13 15:41:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:41:28,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:41:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1073 transitions. [2024-11-13 15:41:28,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9218213058419243 [2024-11-13 15:41:28,901 INFO L175 Difference]: Start difference. First operand has 272 places, 273 transitions, 1066 flow. Second operand 6 states and 1073 transitions. [2024-11-13 15:41:28,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 339 transitions, 1623 flow [2024-11-13 15:41:28,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 339 transitions, 1577 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-13 15:41:28,917 INFO L231 Difference]: Finished difference. Result has 263 places, 314 transitions, 1436 flow [2024-11-13 15:41:28,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1436, PETRI_PLACES=263, PETRI_TRANSITIONS=314} [2024-11-13 15:41:28,920 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 70 predicate places. [2024-11-13 15:41:28,920 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 314 transitions, 1436 flow [2024-11-13 15:41:28,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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 15:41:28,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:28,921 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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 15:41:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:41:28,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:28,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1651511083, now seen corresponding path program 1 times [2024-11-13 15:41:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495554227] [2024-11-13 15:41:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 15:41:29,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:29,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495554227] [2024-11-13 15:41:29,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495554227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:29,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:29,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:41:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727381474] [2024-11-13 15:41:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:29,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:41:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:41:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:41:31,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 194 [2024-11-13 15:41:31,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 314 transitions, 1436 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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 15:41:31,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:41:31,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 194 [2024-11-13 15:41:31,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:41:31,700 INFO L124 PetriNetUnfolderBase]: 579/2263 cut-off events. [2024-11-13 15:41:31,701 INFO L125 PetriNetUnfolderBase]: For 2453/2519 co-relation queries the response was YES. [2024-11-13 15:41:31,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5938 conditions, 2263 events. 579/2263 cut-off events. For 2453/2519 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17425 event pairs, 140 based on Foata normal form. 12/2191 useless extension candidates. Maximal degree in co-relation 5647. Up to 824 conditions per place. [2024-11-13 15:41:31,715 INFO L140 encePairwiseOnDemand]: 179/194 looper letters, 119 selfloop transitions, 78 changer transitions 11/408 dead transitions. [2024-11-13 15:41:31,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 408 transitions, 2376 flow [2024-11-13 15:41:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:41:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:41:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2024-11-13 15:41:31,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9097938144329897 [2024-11-13 15:41:31,719 INFO L175 Difference]: Start difference. First operand has 263 places, 314 transitions, 1436 flow. Second operand 6 states and 1059 transitions. [2024-11-13 15:41:31,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 408 transitions, 2376 flow [2024-11-13 15:41:31,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 408 transitions, 2374 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-13 15:41:31,739 INFO L231 Difference]: Finished difference. Result has 272 places, 362 transitions, 2040 flow [2024-11-13 15:41:31,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=1434, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2040, PETRI_PLACES=272, PETRI_TRANSITIONS=362} [2024-11-13 15:41:31,741 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 79 predicate places. [2024-11-13 15:41:31,741 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 362 transitions, 2040 flow [2024-11-13 15:41:31,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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 15:41:31,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:41:31,742 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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 15:41:31,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:41:31,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 15:41:31,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash 431252293, now seen corresponding path program 1 times [2024-11-13 15:41:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:31,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999859676] [2024-11-13 15:41:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:31,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:31,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:41:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:31,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:41:31,863 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:41:31,864 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-13 15:41:31,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-13 15:41:31,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:41:31,867 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2024-11-13 15:41:31,917 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:41:31,919 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:41:31,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:41:31 BasicIcfg [2024-11-13 15:41:31,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:41:31,926 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:41:31,926 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:41:31,927 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:41:31,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:14" (3/4) ... [2024-11-13 15:41:31,929 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 15:41:32,001 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:41:32,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:41:32,002 INFO L158 Benchmark]: Toolchain (without parser) took 18707.42ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 91.0MB in the beginning and 157.5MB in the end (delta: -66.4MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2024-11-13 15:41:32,002 INFO L158 Benchmark]: CDTParser took 1.98ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:32,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.24ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 60.3MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 15:41:32,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.10ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 57.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:32,003 INFO L158 Benchmark]: Boogie Preprocessor took 32.33ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 55.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:32,003 INFO L158 Benchmark]: RCFGBuilder took 792.63ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 83.8MB in the end (delta: -28.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-13 15:41:32,004 INFO L158 Benchmark]: TraceAbstraction took 17058.80ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 83.3MB in the beginning and 168.5MB in the end (delta: -85.2MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2024-11-13 15:41:32,004 INFO L158 Benchmark]: Witness Printer took 75.19ms. Allocated memory is still 268.4MB. Free memory was 168.5MB in the beginning and 157.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:41:32,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.98ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.24ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 60.3MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.10ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 57.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.33ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 55.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 792.63ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 83.8MB in the end (delta: -28.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17058.80ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 83.3MB in the beginning and 168.5MB in the end (delta: -85.2MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. * Witness Printer took 75.19ms. Allocated memory is still 268.4MB. Free memory was 168.5MB in the beginning and 157.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; VAL [a={1:0}] [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=0] [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=1] [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=2] [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=3] [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=4] [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=5] [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=6] [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=7] [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=8] [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=9] [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) VAL [a={1:0}, i=10] [L939] 0 int i = __VERIFIER_nondet_int(); VAL [a={1:0}, i=1] [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; VAL [a={1:0}, i=1] [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, t1=-1] [L927] 1 int i = __VERIFIER_nondet_int(); VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=0] [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=0, p={1:0}] [L931] 1 i++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, i=1, t1=-1] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1=-1] [L932] EXPR 1 a[i].datum VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L932] 1 a[i].datum++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1=-1] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: a[i].datum++ [944] * C: a[i].datum++ [932] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 234 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.8s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2300 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1797 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3919 IncrementalHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 15 mSDtfsCounter, 3919 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1300 GetRequests, 1171 SyntacticMatches, 11 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2040occurred in iteration=8, InterpolantAutomatonStates: 87, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 2215 NumberOfCodeBlocks, 2165 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2446 ConstructedInterpolants, 0 QuantifiedInterpolants, 3360 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1603 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 600/1123 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 15:41:32,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ef820b-45e5-45bd-bb7c-4fddcee71543/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE