./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.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_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/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_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/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_52896dcc-a3d1-4302-aa4a-79e0208368dd/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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:46:22,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:46:22,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 13:46:22,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:46:22,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:46:22,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:46:22,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:46:22,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:46:22,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:46:22,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:46:22,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:46:22,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:46:22,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:46:22,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:46:22,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:46:22,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:46:22,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:46:22,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:46:22,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:46:22,648 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_52896dcc-a3d1-4302-aa4a-79e0208368dd/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 -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-13 13:46:23,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:46:23,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:46:23,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:46:23,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:46:23,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:46:23,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i Unable to find full path for "g++" [2024-11-13 13:46:25,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:46:25,642 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:46:25,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-13 13:46:25,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/data/a9c8be2a4/c9a89291ffd74510849c050de68b5254/FLAG31af15530 [2024-11-13 13:46:25,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/data/a9c8be2a4/c9a89291ffd74510849c050de68b5254 [2024-11-13 13:46:25,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:46:25,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:46:25,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:46:25,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:46:25,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:46:25,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:46:25" (1/1) ... [2024-11-13 13:46:25,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb2b477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:25, skipping insertion in model container [2024-11-13 13:46:25,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:46:25" (1/1) ... [2024-11-13 13:46:25,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:46:26,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:46:26,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:46:26,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:46:26,727 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:46:26,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26 WrapperNode [2024-11-13 13:46:26,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:46:26,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:46:26,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:46:26,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:46:26,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,818 INFO L138 Inliner]: procedures = 370, calls = 116, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 319 [2024-11-13 13:46:26,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:46:26,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:46:26,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:46:26,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:46:26,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:46:26,933 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:46:26,933 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:46:26,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:46:26,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (1/1) ... [2024-11-13 13:46:26,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:46:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:46:26,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:46:26,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:46:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 13:46:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 13:46:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 13:46:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:46:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:46:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 13:46:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:46:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:46:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 13:46:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 13:46:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 13:46:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:46:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:46:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:46:27,054 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:46:27,290 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:46:27,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:46:28,151 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:46:28,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:46:28,182 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:46:28,182 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 13:46:28,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:46:28 BoogieIcfgContainer [2024-11-13 13:46:28,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:46:28,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:46:28,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:46:28,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:46:28,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:46:25" (1/3) ... [2024-11-13 13:46:28,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd33f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:46:28, skipping insertion in model container [2024-11-13 13:46:28,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:26" (2/3) ... [2024-11-13 13:46:28,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd33f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:46:28, skipping insertion in model container [2024-11-13 13:46:28,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:46:28" (3/3) ... [2024-11-13 13:46:28,195 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-13 13:46:28,212 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:46:28,213 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_17-arrayloop_nr.i that has 2 procedures, 349 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2024-11-13 13:46:28,214 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:46:28,335 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:46:28,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 354 transitions, 712 flow [2024-11-13 13:46:28,668 INFO L124 PetriNetUnfolderBase]: 6/353 cut-off events. [2024-11-13 13:46:28,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:46:28,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 353 events. 6/353 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 416 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-11-13 13:46:28,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 354 transitions, 712 flow [2024-11-13 13:46:28,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 353 transitions, 709 flow [2024-11-13 13:46:28,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:46:28,737 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;@b472032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:46:28,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-13 13:46:28,800 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:46:28,800 INFO L124 PetriNetUnfolderBase]: 3/153 cut-off events. [2024-11-13 13:46:28,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:46:28,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:28,803 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] [2024-11-13 13:46:28,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:28,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:28,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1950037710, now seen corresponding path program 1 times [2024-11-13 13:46:28,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:28,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872524610] [2024-11-13 13:46:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:28,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:30,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:30,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:30,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872524610] [2024-11-13 13:46:30,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872524610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:30,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:46:30,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:46:30,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752257357] [2024-11-13 13:46:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:30,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:46:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:46:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:46:31,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 354 [2024-11-13 13:46:31,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 353 transitions, 709 flow. Second operand has 6 states, 6 states have (on average 269.3333333333333) internal successors, (1616), 6 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:31,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:31,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 354 [2024-11-13 13:46:31,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:33,548 INFO L124 PetriNetUnfolderBase]: 1265/4906 cut-off events. [2024-11-13 13:46:33,550 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 13:46:33,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7450 conditions, 4906 events. 1265/4906 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36018 event pairs, 912 based on Foata normal form. 139/4638 useless extension candidates. Maximal degree in co-relation 7280. Up to 2359 conditions per place. [2024-11-13 13:46:33,592 INFO L140 encePairwiseOnDemand]: 314/354 looper letters, 84 selfloop transitions, 107 changer transitions 0/458 dead transitions. [2024-11-13 13:46:33,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 458 transitions, 1301 flow [2024-11-13 13:46:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:46:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:46:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1808 transitions. [2024-11-13 13:46:33,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8512241054613936 [2024-11-13 13:46:33,628 INFO L175 Difference]: Start difference. First operand has 351 places, 353 transitions, 709 flow. Second operand 6 states and 1808 transitions. [2024-11-13 13:46:33,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 458 transitions, 1301 flow [2024-11-13 13:46:33,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 458 transitions, 1300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:46:33,659 INFO L231 Difference]: Finished difference. Result has 359 places, 450 transitions, 1390 flow [2024-11-13 13:46:33,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1390, PETRI_PLACES=359, PETRI_TRANSITIONS=450} [2024-11-13 13:46:33,670 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 8 predicate places. [2024-11-13 13:46:33,671 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 450 transitions, 1390 flow [2024-11-13 13:46:33,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.3333333333333) internal successors, (1616), 6 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:33,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:33,674 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] [2024-11-13 13:46:33,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:46:33,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:33,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1716135748, now seen corresponding path program 1 times [2024-11-13 13:46:33,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:33,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272772133] [2024-11-13 13:46:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:33,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:34,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272772133] [2024-11-13 13:46:34,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272772133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:34,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:46:34,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:46:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510171081] [2024-11-13 13:46:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:34,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:46:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:46:34,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:46:35,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 354 [2024-11-13 13:46:35,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 450 transitions, 1390 flow. Second operand has 6 states, 6 states have (on average 269.3333333333333) internal successors, (1616), 6 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:35,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:35,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 354 [2024-11-13 13:46:35,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:37,355 INFO L124 PetriNetUnfolderBase]: 1530/5787 cut-off events. [2024-11-13 13:46:37,356 INFO L125 PetriNetUnfolderBase]: For 1227/1227 co-relation queries the response was YES. [2024-11-13 13:46:37,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10587 conditions, 5787 events. 1530/5787 cut-off events. For 1227/1227 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 43909 event pairs, 936 based on Foata normal form. 0/5350 useless extension candidates. Maximal degree in co-relation 10404. Up to 2635 conditions per place. [2024-11-13 13:46:37,395 INFO L140 encePairwiseOnDemand]: 317/354 looper letters, 180 selfloop transitions, 107 changer transitions 0/558 dead transitions. [2024-11-13 13:46:37,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 558 transitions, 2372 flow [2024-11-13 13:46:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:46:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:46:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1801 transitions. [2024-11-13 13:46:37,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479284369114878 [2024-11-13 13:46:37,408 INFO L175 Difference]: Start difference. First operand has 359 places, 450 transitions, 1390 flow. Second operand 6 states and 1801 transitions. [2024-11-13 13:46:37,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 558 transitions, 2372 flow [2024-11-13 13:46:37,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 558 transitions, 2372 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:46:37,437 INFO L231 Difference]: Finished difference. Result has 368 places, 550 transitions, 2270 flow [2024-11-13 13:46:37,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1388, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2270, PETRI_PLACES=368, PETRI_TRANSITIONS=550} [2024-11-13 13:46:37,439 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 17 predicate places. [2024-11-13 13:46:37,440 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 550 transitions, 2270 flow [2024-11-13 13:46:37,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.3333333333333) internal successors, (1616), 6 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:37,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:37,442 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] [2024-11-13 13:46:37,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:46:37,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:37,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash 152031777, now seen corresponding path program 1 times [2024-11-13 13:46:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:37,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137560577] [2024-11-13 13:46:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:37,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:37,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:37,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137560577] [2024-11-13 13:46:37,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137560577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:37,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:46:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:46:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169061982] [2024-11-13 13:46:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:37,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:46:37,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:37,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:46:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:46:37,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 354 [2024-11-13 13:46:37,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 550 transitions, 2270 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:37,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:37,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 354 [2024-11-13 13:46:37,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:38,870 INFO L124 PetriNetUnfolderBase]: 1081/4456 cut-off events. [2024-11-13 13:46:38,871 INFO L125 PetriNetUnfolderBase]: For 1112/1118 co-relation queries the response was YES. [2024-11-13 13:46:38,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8866 conditions, 4456 events. 1081/4456 cut-off events. For 1112/1118 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 28689 event pairs, 108 based on Foata normal form. 4/4214 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-11-13 13:46:38,904 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 16 selfloop transitions, 4 changer transitions 0/556 dead transitions. [2024-11-13 13:46:38,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 556 transitions, 2322 flow [2024-11-13 13:46:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:46:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:46:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2024-11-13 13:46:38,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.972693032015066 [2024-11-13 13:46:38,908 INFO L175 Difference]: Start difference. First operand has 368 places, 550 transitions, 2270 flow. Second operand 3 states and 1033 transitions. [2024-11-13 13:46:38,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 556 transitions, 2322 flow [2024-11-13 13:46:38,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 556 transitions, 2130 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-13 13:46:38,938 INFO L231 Difference]: Finished difference. Result has 371 places, 552 transitions, 2102 flow [2024-11-13 13:46:38,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=2078, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2102, PETRI_PLACES=371, PETRI_TRANSITIONS=552} [2024-11-13 13:46:38,940 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 20 predicate places. [2024-11-13 13:46:38,940 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 552 transitions, 2102 flow [2024-11-13 13:46:38,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:38,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:38,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:46:38,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:46:38,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:38,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2103857401, now seen corresponding path program 1 times [2024-11-13 13:46:38,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:38,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773987051] [2024-11-13 13:46:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:39,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:39,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773987051] [2024-11-13 13:46:39,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773987051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:39,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:46:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:46:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153840039] [2024-11-13 13:46:39,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:39,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:46:39,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:39,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:46:39,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:46:41,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 354 [2024-11-13 13:46:41,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 552 transitions, 2102 flow. Second operand has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:41,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:41,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 354 [2024-11-13 13:46:41,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:44,257 INFO L124 PetriNetUnfolderBase]: 2970/10697 cut-off events. [2024-11-13 13:46:44,257 INFO L125 PetriNetUnfolderBase]: For 6078/6189 co-relation queries the response was YES. [2024-11-13 13:46:44,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23753 conditions, 10697 events. 2970/10697 cut-off events. For 6078/6189 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84457 event pairs, 1872 based on Foata normal form. 0/10165 useless extension candidates. Maximal degree in co-relation 23467. Up to 5591 conditions per place. [2024-11-13 13:46:44,335 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 285 selfloop transitions, 5 changer transitions 0/551 dead transitions. [2024-11-13 13:46:44,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 551 transitions, 2680 flow [2024-11-13 13:46:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:46:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:46:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1651 transitions. [2024-11-13 13:46:44,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.777306967984934 [2024-11-13 13:46:44,341 INFO L175 Difference]: Start difference. First operand has 371 places, 552 transitions, 2102 flow. Second operand 6 states and 1651 transitions. [2024-11-13 13:46:44,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 551 transitions, 2680 flow [2024-11-13 13:46:44,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 551 transitions, 2676 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:46:44,364 INFO L231 Difference]: Finished difference. Result has 374 places, 551 transitions, 2106 flow [2024-11-13 13:46:44,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2106, PETRI_PLACES=374, PETRI_TRANSITIONS=551} [2024-11-13 13:46:44,366 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 23 predicate places. [2024-11-13 13:46:44,366 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 551 transitions, 2106 flow [2024-11-13 13:46:44,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:44,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:44,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:46:44,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:46:44,368 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:44,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:44,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1943161523, now seen corresponding path program 1 times [2024-11-13 13:46:44,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:44,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974073131] [2024-11-13 13:46:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:44,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:44,594 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 13:46:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974073131] [2024-11-13 13:46:44,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974073131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:46:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263124413] [2024-11-13 13:46:44,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:44,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:44,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:46:44,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:46:44,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:46:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:44,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:46:44,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:46:44,983 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 13:46:44,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:46:45,140 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 13:46:45,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263124413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:46:45,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:46:45,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 13:46:45,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633146254] [2024-11-13 13:46:45,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:46:45,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:46:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:45,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:46:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:46:45,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 354 [2024-11-13 13:46:45,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 551 transitions, 2106 flow. Second operand has 10 states, 10 states have (on average 335.0) internal successors, (3350), 10 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:45,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:45,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 354 [2024-11-13 13:46:45,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:46,626 INFO L124 PetriNetUnfolderBase]: 1095/4611 cut-off events. [2024-11-13 13:46:46,626 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-11-13 13:46:46,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8914 conditions, 4611 events. 1095/4611 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 29261 event pairs, 106 based on Foata normal form. 2/4358 useless extension candidates. Maximal degree in co-relation 8588. Up to 922 conditions per place. [2024-11-13 13:46:46,655 INFO L140 encePairwiseOnDemand]: 345/354 looper letters, 22 selfloop transitions, 13 changer transitions 0/566 dead transitions. [2024-11-13 13:46:46,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 566 transitions, 2208 flow [2024-11-13 13:46:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:46:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 13:46:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3034 transitions. [2024-11-13 13:46:46,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522912743251726 [2024-11-13 13:46:46,663 INFO L175 Difference]: Start difference. First operand has 374 places, 551 transitions, 2106 flow. Second operand 9 states and 3034 transitions. [2024-11-13 13:46:46,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 566 transitions, 2208 flow [2024-11-13 13:46:46,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 566 transitions, 2198 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 13:46:46,690 INFO L231 Difference]: Finished difference. Result has 380 places, 558 transitions, 2164 flow [2024-11-13 13:46:46,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2164, PETRI_PLACES=380, PETRI_TRANSITIONS=558} [2024-11-13 13:46:46,692 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 29 predicate places. [2024-11-13 13:46:46,692 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 558 transitions, 2164 flow [2024-11-13 13:46:46,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 335.0) internal successors, (3350), 10 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:46,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:46,697 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 13:46:46,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:46:46,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:46,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:46,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1260009869, now seen corresponding path program 2 times [2024-11-13 13:46:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:46,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033842746] [2024-11-13 13:46:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:46,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:47,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:47,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033842746] [2024-11-13 13:46:47,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033842746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:46:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961951075] [2024-11-13 13:46:47,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:46:47,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:47,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:46:47,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:46:47,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:46:47,900 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:46:47,900 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:46:47,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 13:46:47,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:46:47,995 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 11 treesize of output 7 [2024-11-13 13:46:48,022 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 21 treesize of output 20 [2024-11-13 13:46:48,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:46:48,076 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 30 treesize of output 32 [2024-11-13 13:46:48,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:46:48,142 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 39 treesize of output 44 [2024-11-13 13:46:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-13 13:46:48,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:46:48,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961951075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:48,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:46:48,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 13:46:48,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977275524] [2024-11-13 13:46:48,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:48,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:46:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:48,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:46:48,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:46:48,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 354 [2024-11-13 13:46:48,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 558 transitions, 2164 flow. Second operand has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:48,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:48,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 354 [2024-11-13 13:46:48,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:52,701 INFO L124 PetriNetUnfolderBase]: 3572/12346 cut-off events. [2024-11-13 13:46:52,701 INFO L125 PetriNetUnfolderBase]: For 5321/5437 co-relation queries the response was YES. [2024-11-13 13:46:52,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26861 conditions, 12346 events. 3572/12346 cut-off events. For 5321/5437 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 97906 event pairs, 1616 based on Foata normal form. 0/11600 useless extension candidates. Maximal degree in co-relation 26497. Up to 6065 conditions per place. [2024-11-13 13:46:52,779 INFO L140 encePairwiseOnDemand]: 311/354 looper letters, 245 selfloop transitions, 170 changer transitions 0/727 dead transitions. [2024-11-13 13:46:52,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 727 transitions, 3472 flow [2024-11-13 13:46:52,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:46:52,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:46:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1864 transitions. [2024-11-13 13:46:52,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8775894538606404 [2024-11-13 13:46:52,785 INFO L175 Difference]: Start difference. First operand has 380 places, 558 transitions, 2164 flow. Second operand 6 states and 1864 transitions. [2024-11-13 13:46:52,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 727 transitions, 3472 flow [2024-11-13 13:46:52,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 727 transitions, 3462 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-13 13:46:52,816 INFO L231 Difference]: Finished difference. Result has 389 places, 719 transitions, 3404 flow [2024-11-13 13:46:52,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=2154, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3404, PETRI_PLACES=389, PETRI_TRANSITIONS=719} [2024-11-13 13:46:52,817 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 38 predicate places. [2024-11-13 13:46:52,817 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 719 transitions, 3404 flow [2024-11-13 13:46:52,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:52,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:52,819 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2024-11-13 13:46:52,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:46:53,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:53,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:53,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash 656134008, now seen corresponding path program 1 times [2024-11-13 13:46:53,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:53,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227015731] [2024-11-13 13:46:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:53,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:53,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:53,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227015731] [2024-11-13 13:46:53,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227015731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:46:53,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555936386] [2024-11-13 13:46:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:53,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:53,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:46:53,553 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:46:53,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:46:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:53,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:46:53,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:46:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:54,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:46:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:54,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555936386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:46:54,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:46:54,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 13:46:54,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956297248] [2024-11-13 13:46:54,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:46:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 13:46:54,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:54,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 13:46:54,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:46:55,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 354 [2024-11-13 13:46:55,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 719 transitions, 3404 flow. Second operand has 18 states, 18 states have (on average 335.0) internal successors, (6030), 18 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:55,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:46:55,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 354 [2024-11-13 13:46:55,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:46:57,433 INFO L124 PetriNetUnfolderBase]: 1787/7061 cut-off events. [2024-11-13 13:46:57,433 INFO L125 PetriNetUnfolderBase]: For 3091/3176 co-relation queries the response was YES. [2024-11-13 13:46:57,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16237 conditions, 7061 events. 1787/7061 cut-off events. For 3091/3176 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 48969 event pairs, 168 based on Foata normal form. 4/6749 useless extension candidates. Maximal degree in co-relation 15606. Up to 1394 conditions per place. [2024-11-13 13:46:57,477 INFO L140 encePairwiseOnDemand]: 345/354 looper letters, 26 selfloop transitions, 25 changer transitions 0/743 dead transitions. [2024-11-13 13:46:57,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 743 transitions, 3606 flow [2024-11-13 13:46:57,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 13:46:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 13:46:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7048 transitions. [2024-11-13 13:46:57,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9480764057035244 [2024-11-13 13:46:57,495 INFO L175 Difference]: Start difference. First operand has 389 places, 719 transitions, 3404 flow. Second operand 21 states and 7048 transitions. [2024-11-13 13:46:57,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 743 transitions, 3606 flow [2024-11-13 13:46:57,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 743 transitions, 3570 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-13 13:46:57,561 INFO L231 Difference]: Finished difference. Result has 414 places, 732 transitions, 3512 flow [2024-11-13 13:46:57,562 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3512, PETRI_PLACES=414, PETRI_TRANSITIONS=732} [2024-11-13 13:46:57,563 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 63 predicate places. [2024-11-13 13:46:57,563 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 732 transitions, 3512 flow [2024-11-13 13:46:57,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 335.0) internal successors, (6030), 18 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:46:57,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:46:57,567 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2024-11-13 13:46:57,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:46:57,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:57,771 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:46:57,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:46:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1797715704, now seen corresponding path program 2 times [2024-11-13 13:46:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:46:57,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602750033] [2024-11-13 13:46:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:46:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:46:59,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:59,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602750033] [2024-11-13 13:46:59,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602750033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:46:59,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519637658] [2024-11-13 13:46:59,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:46:59,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:46:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:46:59,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:46:59,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:46:59,606 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:46:59,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:46:59,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 13:46:59,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:46:59,645 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 13 treesize of output 9 [2024-11-13 13:46:59,671 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 23 treesize of output 22 [2024-11-13 13:46:59,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:46:59,717 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 32 treesize of output 34 [2024-11-13 13:46:59,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:46:59,772 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 41 treesize of output 46 [2024-11-13 13:46:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-13 13:46:59,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:46:59,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519637658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:59,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:46:59,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 13:46:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685820336] [2024-11-13 13:46:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:59,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:46:59,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:59,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:46:59,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:47:00,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 354 [2024-11-13 13:47:00,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 732 transitions, 3512 flow. Second operand has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:00,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:47:00,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 354 [2024-11-13 13:47:00,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:47:06,414 INFO L124 PetriNetUnfolderBase]: 4262/14721 cut-off events. [2024-11-13 13:47:06,414 INFO L125 PetriNetUnfolderBase]: For 10659/10885 co-relation queries the response was YES. [2024-11-13 13:47:06,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37031 conditions, 14721 events. 4262/14721 cut-off events. For 10659/10885 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 119034 event pairs, 1676 based on Foata normal form. 0/13925 useless extension candidates. Maximal degree in co-relation 36307. Up to 6898 conditions per place. [2024-11-13 13:47:06,522 INFO L140 encePairwiseOnDemand]: 311/354 looper letters, 395 selfloop transitions, 170 changer transitions 0/901 dead transitions. [2024-11-13 13:47:06,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 901 transitions, 5420 flow [2024-11-13 13:47:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:47:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:47:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1864 transitions. [2024-11-13 13:47:06,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8775894538606404 [2024-11-13 13:47:06,528 INFO L175 Difference]: Start difference. First operand has 414 places, 732 transitions, 3512 flow. Second operand 6 states and 1864 transitions. [2024-11-13 13:47:06,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 901 transitions, 5420 flow [2024-11-13 13:47:06,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 901 transitions, 5394 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 13:47:06,602 INFO L231 Difference]: Finished difference. Result has 418 places, 893 transitions, 5036 flow [2024-11-13 13:47:06,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=3486, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5036, PETRI_PLACES=418, PETRI_TRANSITIONS=893} [2024-11-13 13:47:06,604 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 67 predicate places. [2024-11-13 13:47:06,604 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 893 transitions, 5036 flow [2024-11-13 13:47:06,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:06,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:47:06,605 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:47:06,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:47:06,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:47:06,806 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:47:06,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:47:06,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2137069528, now seen corresponding path program 1 times [2024-11-13 13:47:06,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:47:06,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814701534] [2024-11-13 13:47:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:06,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:47:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:47:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:47:08,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:47:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814701534] [2024-11-13 13:47:08,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814701534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:47:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801656444] [2024-11-13 13:47:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:08,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:47:08,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:47:08,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:47:08,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:47:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:47:09,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:47:09,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:47:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:47:09,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:47:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:47:10,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801656444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:47:10,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:47:10,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 13:47:10,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553803277] [2024-11-13 13:47:10,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:47:10,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 13:47:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:47:10,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 13:47:10,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:47:10,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 354 [2024-11-13 13:47:10,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 893 transitions, 5036 flow. Second operand has 23 states, 23 states have (on average 335.2173913043478) internal successors, (7710), 23 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:10,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:47:10,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 354 [2024-11-13 13:47:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:47:14,529 INFO L124 PetriNetUnfolderBase]: 2478/9401 cut-off events. [2024-11-13 13:47:14,530 INFO L125 PetriNetUnfolderBase]: For 7419/7577 co-relation queries the response was YES. [2024-11-13 13:47:14,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24591 conditions, 9401 events. 2478/9401 cut-off events. For 7419/7577 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 68632 event pairs, 229 based on Foata normal form. 3/9031 useless extension candidates. Maximal degree in co-relation 23697. Up to 2112 conditions per place. [2024-11-13 13:47:14,581 INFO L140 encePairwiseOnDemand]: 345/354 looper letters, 29 selfloop transitions, 34 changer transitions 0/916 dead transitions. [2024-11-13 13:47:14,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 916 transitions, 5296 flow [2024-11-13 13:47:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 13:47:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 13:47:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 10056 transitions. [2024-11-13 13:47:14,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468926553672317 [2024-11-13 13:47:14,592 INFO L175 Difference]: Start difference. First operand has 418 places, 893 transitions, 5036 flow. Second operand 30 states and 10056 transitions. [2024-11-13 13:47:14,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 916 transitions, 5296 flow [2024-11-13 13:47:14,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 916 transitions, 4960 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-13 13:47:14,689 INFO L231 Difference]: Finished difference. Result has 451 places, 903 transitions, 4866 flow [2024-11-13 13:47:14,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4866, PETRI_PLACES=451, PETRI_TRANSITIONS=903} [2024-11-13 13:47:14,692 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 100 predicate places. [2024-11-13 13:47:14,693 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 903 transitions, 4866 flow [2024-11-13 13:47:14,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 335.2173913043478) internal successors, (7710), 23 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:14,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:47:14,697 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-13 13:47:14,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:47:14,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52896dcc-a3d1-4302-aa4a-79e0208368dd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 13:47:14,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:47:14,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:47:14,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1478802890, now seen corresponding path program 2 times [2024-11-13 13:47:14,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:47:14,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072341551] [2024-11-13 13:47:14,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:14,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:47:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:47:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-13 13:47:18,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:47:18,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072341551] [2024-11-13 13:47:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072341551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:47:18,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:47:18,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:47:18,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442832882] [2024-11-13 13:47:18,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:47:18,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:47:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:47:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:47:18,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:47:19,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 354 [2024-11-13 13:47:19,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 903 transitions, 4866 flow. Second operand has 11 states, 11 states have (on average 262.1818181818182) internal successors, (2884), 11 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:19,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:47:19,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 354 [2024-11-13 13:47:19,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:47:27,579 INFO L124 PetriNetUnfolderBase]: 4958/16139 cut-off events. [2024-11-13 13:47:27,580 INFO L125 PetriNetUnfolderBase]: For 16972/17090 co-relation queries the response was YES. [2024-11-13 13:47:27,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46880 conditions, 16139 events. 4958/16139 cut-off events. For 16972/17090 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 128732 event pairs, 1551 based on Foata normal form. 32/15502 useless extension candidates. Maximal degree in co-relation 45814. Up to 4580 conditions per place. [2024-11-13 13:47:27,681 INFO L140 encePairwiseOnDemand]: 303/354 looper letters, 589 selfloop transitions, 184 changer transitions 0/1107 dead transitions. [2024-11-13 13:47:27,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1107 transitions, 7610 flow [2024-11-13 13:47:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:47:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 13:47:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3525 transitions. [2024-11-13 13:47:27,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298022598870056 [2024-11-13 13:47:27,689 INFO L175 Difference]: Start difference. First operand has 451 places, 903 transitions, 4866 flow. Second operand 12 states and 3525 transitions. [2024-11-13 13:47:27,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1107 transitions, 7610 flow [2024-11-13 13:47:27,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1107 transitions, 7562 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-13 13:47:27,776 INFO L231 Difference]: Finished difference. Result has 449 places, 922 transitions, 5576 flow [2024-11-13 13:47:27,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=4818, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5576, PETRI_PLACES=449, PETRI_TRANSITIONS=922} [2024-11-13 13:47:27,777 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 98 predicate places. [2024-11-13 13:47:27,777 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 922 transitions, 5576 flow [2024-11-13 13:47:27,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 262.1818181818182) internal successors, (2884), 11 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:27,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:47:27,778 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-13 13:47:27,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:47:27,778 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:47:27,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:47:27,779 INFO L85 PathProgramCache]: Analyzing trace with hash 3075904, now seen corresponding path program 3 times [2024-11-13 13:47:27,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:47:27,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481453413] [2024-11-13 13:47:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:47:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:47:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-13 13:47:30,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:47:30,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481453413] [2024-11-13 13:47:30,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481453413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:47:30,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:47:30,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:47:30,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053275572] [2024-11-13 13:47:30,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:47:30,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:47:30,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:47:30,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:47:30,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:47:31,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 354 [2024-11-13 13:47:31,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 922 transitions, 5576 flow. Second operand has 11 states, 11 states have (on average 262.1818181818182) internal successors, (2884), 11 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:31,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:47:31,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 354 [2024-11-13 13:47:31,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:47:39,936 INFO L124 PetriNetUnfolderBase]: 5667/18317 cut-off events. [2024-11-13 13:47:39,936 INFO L125 PetriNetUnfolderBase]: For 25383/25968 co-relation queries the response was YES. [2024-11-13 13:47:40,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57925 conditions, 18317 events. 5667/18317 cut-off events. For 25383/25968 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 149858 event pairs, 1736 based on Foata normal form. 97/17682 useless extension candidates. Maximal degree in co-relation 56876. Up to 5373 conditions per place. [2024-11-13 13:47:40,103 INFO L140 encePairwiseOnDemand]: 299/354 looper letters, 831 selfloop transitions, 162 changer transitions 0/1327 dead transitions. [2024-11-13 13:47:40,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1327 transitions, 10884 flow [2024-11-13 13:47:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 13:47:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-13 13:47:40,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6282 transitions. [2024-11-13 13:47:40,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7715549005158437 [2024-11-13 13:47:40,112 INFO L175 Difference]: Start difference. First operand has 449 places, 922 transitions, 5576 flow. Second operand 23 states and 6282 transitions. [2024-11-13 13:47:40,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1327 transitions, 10884 flow [2024-11-13 13:47:40,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 1327 transitions, 10646 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-13 13:47:40,239 INFO L231 Difference]: Finished difference. Result has 482 places, 1063 transitions, 7402 flow [2024-11-13 13:47:40,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=5436, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7402, PETRI_PLACES=482, PETRI_TRANSITIONS=1063} [2024-11-13 13:47:40,241 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 131 predicate places. [2024-11-13 13:47:40,241 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 1063 transitions, 7402 flow [2024-11-13 13:47:40,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 262.1818181818182) internal successors, (2884), 11 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:40,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:47:40,243 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-13 13:47:40,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:47:40,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:47:40,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:47:40,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2097676584, now seen corresponding path program 4 times [2024-11-13 13:47:40,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:47:40,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722971472] [2024-11-13 13:47:40,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:40,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:47:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:47:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-13 13:47:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:47:42,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722971472] [2024-11-13 13:47:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722971472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:47:42,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:47:42,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:47:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070404133] [2024-11-13 13:47:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:47:42,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:47:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:47:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:47:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:47:44,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 354 [2024-11-13 13:47:44,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1063 transitions, 7402 flow. Second operand has 11 states, 11 states have (on average 262.1818181818182) internal successors, (2884), 11 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:47:44,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:47:44,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 354 [2024-11-13 13:47:44,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand