./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC --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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:48:27,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:48:27,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 01:48:27,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:48:27,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:48:27,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:48:27,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:48:27,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:48:27,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:48:27,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:48:27,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:48:27,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:48:27,324 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:48:27,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:48:27,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:48:27,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:48:27,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:48:27,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:48:27,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:27,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:27,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:48:27,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:27,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:27,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:27,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:48:27,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:48:27,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:48:27,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:48:27,330 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_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC 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 -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-11-24 01:48:27,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:48:27,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:48:27,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:48:27,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:48:27,649 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:48:27,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-24 01:48:30,540 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/data/e3b3cb882/36aac33c0f9445a288b43456a2504b13/FLAG9e286e8ae [2024-11-24 01:48:30,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:48:30,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-24 01:48:31,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/data/e3b3cb882/36aac33c0f9445a288b43456a2504b13/FLAG9e286e8ae [2024-11-24 01:48:31,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/data/e3b3cb882/36aac33c0f9445a288b43456a2504b13 [2024-11-24 01:48:31,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:48:31,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:48:31,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:31,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:48:31,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:48:31,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:31" (1/1) ... [2024-11-24 01:48:31,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ba1aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:31, skipping insertion in model container [2024-11-24 01:48:31,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:31" (1/1) ... [2024-11-24 01:48:31,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:48:31,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:31,857 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:48:31,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:32,048 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:48:32,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32 WrapperNode [2024-11-24 01:48:32,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:32,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:32,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:48:32,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:48:32,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,147 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 243 [2024-11-24 01:48:32,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:32,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:48:32,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:48:32,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:48:32,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,193 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:48:32,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:48:32,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:48:32,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:48:32,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (1/1) ... [2024-11-24 01:48:32,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:32,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:32,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:48:32,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:48:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:48:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-24 01:48:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:48:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:48:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:48:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:48:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:48:32,270 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:48:32,440 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:48:32,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:48:33,161 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:48:33,162 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:48:33,194 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:48:33,194 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:48:33,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:33 BoogieIcfgContainer [2024-11-24 01:48:33,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:48:33,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:48:33,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:48:33,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:48:33,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:48:31" (1/3) ... [2024-11-24 01:48:33,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512f6496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:33, skipping insertion in model container [2024-11-24 01:48:33,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:32" (2/3) ... [2024-11-24 01:48:33,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512f6496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:33, skipping insertion in model container [2024-11-24 01:48:33,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:33" (3/3) ... [2024-11-24 01:48:33,205 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-11-24 01:48:33,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:48:33,222 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_26-alloc_region_rc.i that has 2 procedures, 272 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-24 01:48:33,222 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:48:33,354 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:48:33,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-11-24 01:48:33,587 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-11-24 01:48:33,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:33,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 258 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-11-24 01:48:33,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-11-24 01:48:33,614 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-11-24 01:48:33,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:48:33,645 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;@70c798e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:48:33,646 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-24 01:48:33,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:48:33,657 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-24 01:48:33,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:33,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:33,658 INFO L206 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] [2024-11-24 01:48:33,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:33,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash -527324182, now seen corresponding path program 1 times [2024-11-24 01:48:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134044977] [2024-11-24 01:48:33,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:33,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:34,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:34,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134044977] [2024-11-24 01:48:34,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134044977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:34,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:34,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906908232] [2024-11-24 01:48:34,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:34,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:34,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:34,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:35,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-11-24 01:48:35,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 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) [2024-11-24 01:48:35,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:35,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-11-24 01:48:35,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:37,092 INFO L124 PetriNetUnfolderBase]: 1377/5015 cut-off events. [2024-11-24 01:48:37,092 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:48:37,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7809 conditions, 5015 events. 1377/5015 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 37623 event pairs, 1344 based on Foata normal form. 36/4687 useless extension candidates. Maximal degree in co-relation 7712. Up to 2785 conditions per place. [2024-11-24 01:48:37,118 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-11-24 01:48:37,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-11-24 01:48:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-11-24 01:48:37,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-11-24 01:48:37,137 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-11-24 01:48:37,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-11-24 01:48:37,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:48:37,150 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-11-24 01:48:37,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-11-24 01:48:37,159 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-11-24 01:48:37,160 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-11-24 01:48:37,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 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) [2024-11-24 01:48:37,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:37,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:37,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:48:37,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:37,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 940357652, now seen corresponding path program 1 times [2024-11-24 01:48:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:37,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421454794] [2024-11-24 01:48:37,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:37,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421454794] [2024-11-24 01:48:37,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421454794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:37,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076681413] [2024-11-24 01:48:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:37,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:37,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:37,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:37,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:38,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-11-24 01:48:38,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 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) [2024-11-24 01:48:38,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:38,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-11-24 01:48:38,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:39,688 INFO L124 PetriNetUnfolderBase]: 762/4094 cut-off events. [2024-11-24 01:48:39,689 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:48:39,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5678 conditions, 4094 events. 762/4094 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 31513 event pairs, 460 based on Foata normal form. 0/3734 useless extension candidates. Maximal degree in co-relation 5631. Up to 1372 conditions per place. [2024-11-24 01:48:39,707 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-11-24 01:48:39,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-11-24 01:48:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-11-24 01:48:39,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-11-24 01:48:39,712 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-11-24 01:48:39,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-11-24 01:48:39,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:48:39,726 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-11-24 01:48:39,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-11-24 01:48:39,728 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-11-24 01:48:39,728 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-11-24 01:48:39,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 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) [2024-11-24 01:48:39,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:39,729 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:39,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:48:39,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:39,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:39,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1512683605, now seen corresponding path program 1 times [2024-11-24 01:48:39,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:39,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321918295] [2024-11-24 01:48:39,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:40,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:40,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321918295] [2024-11-24 01:48:40,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321918295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:40,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:40,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341783759] [2024-11-24 01:48:40,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:40,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:40,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:40,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:40,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:40,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-24 01:48:40,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-11-24 01:48:40,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:40,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-24 01:48:40,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:42,548 INFO L124 PetriNetUnfolderBase]: 2110/7422 cut-off events. [2024-11-24 01:48:42,548 INFO L125 PetriNetUnfolderBase]: For 1551/1556 co-relation queries the response was YES. [2024-11-24 01:48:42,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13852 conditions, 7422 events. 2110/7422 cut-off events. For 1551/1556 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 59997 event pairs, 1264 based on Foata normal form. 0/6804 useless extension candidates. Maximal degree in co-relation 13747. Up to 4041 conditions per place. [2024-11-24 01:48:42,586 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-11-24 01:48:42,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-11-24 01:48:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-24 01:48:42,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-24 01:48:42,590 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-11-24 01:48:42,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-11-24 01:48:42,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:48:42,613 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-11-24 01:48:42,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-11-24 01:48:42,615 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-11-24 01:48:42,615 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-11-24 01:48:42,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-11-24 01:48:42,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:42,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:42,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:48:42,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:42,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1900410785, now seen corresponding path program 1 times [2024-11-24 01:48:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:42,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556576851] [2024-11-24 01:48:42,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:42,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:43,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:43,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556576851] [2024-11-24 01:48:43,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556576851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:43,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:43,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:43,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773639951] [2024-11-24 01:48:43,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:43,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:43,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:43,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:43,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-24 01:48:43,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-11-24 01:48:43,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:43,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-24 01:48:43,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:45,750 INFO L124 PetriNetUnfolderBase]: 2411/8366 cut-off events. [2024-11-24 01:48:45,751 INFO L125 PetriNetUnfolderBase]: For 3692/3703 co-relation queries the response was YES. [2024-11-24 01:48:45,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17817 conditions, 8366 events. 2411/8366 cut-off events. For 3692/3703 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 68345 event pairs, 1292 based on Foata normal form. 0/7722 useless extension candidates. Maximal degree in co-relation 17698. Up to 4366 conditions per place. [2024-11-24 01:48:45,802 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-11-24 01:48:45,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-11-24 01:48:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-24 01:48:45,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-24 01:48:45,807 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-11-24 01:48:45,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-11-24 01:48:45,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-11-24 01:48:45,834 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-11-24 01:48:45,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-11-24 01:48:45,836 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-11-24 01:48:45,836 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-11-24 01:48:45,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-11-24 01:48:45,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:45,837 INFO L206 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] [2024-11-24 01:48:45,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:48:45,837 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:45,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1673401969, now seen corresponding path program 1 times [2024-11-24 01:48:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:45,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599025336] [2024-11-24 01:48:45,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:45,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:46,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:46,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599025336] [2024-11-24 01:48:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599025336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:46,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:46,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:46,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963011428] [2024-11-24 01:48:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:46,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:46,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:46,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:47,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-24 01:48:47,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-11-24 01:48:47,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:47,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-24 01:48:47,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:49,087 INFO L124 PetriNetUnfolderBase]: 2735/9170 cut-off events. [2024-11-24 01:48:49,087 INFO L125 PetriNetUnfolderBase]: For 5379/5442 co-relation queries the response was YES. [2024-11-24 01:48:49,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21670 conditions, 9170 events. 2735/9170 cut-off events. For 5379/5442 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 75300 event pairs, 1246 based on Foata normal form. 0/8504 useless extension candidates. Maximal degree in co-relation 21538. Up to 4881 conditions per place. [2024-11-24 01:48:49,137 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-11-24 01:48:49,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-11-24 01:48:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-24 01:48:49,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-24 01:48:49,141 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-11-24 01:48:49,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-11-24 01:48:49,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-11-24 01:48:49,173 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-11-24 01:48:49,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-11-24 01:48:49,174 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-11-24 01:48:49,174 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-11-24 01:48:49,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-11-24 01:48:49,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:49,175 INFO L206 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] [2024-11-24 01:48:49,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:48:49,176 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:49,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1877789814, now seen corresponding path program 1 times [2024-11-24 01:48:49,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:49,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352322264] [2024-11-24 01:48:49,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:49,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:49,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:49,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352322264] [2024-11-24 01:48:49,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352322264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:49,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:49,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900190872] [2024-11-24 01:48:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:49,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:49,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:49,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:49,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:50,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-24 01:48:50,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-11-24 01:48:50,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:50,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-24 01:48:50,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:52,369 INFO L124 PetriNetUnfolderBase]: 3192/10515 cut-off events. [2024-11-24 01:48:52,369 INFO L125 PetriNetUnfolderBase]: For 8626/8717 co-relation queries the response was YES. [2024-11-24 01:48:52,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27972 conditions, 10515 events. 3192/10515 cut-off events. For 8626/8717 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 87900 event pairs, 1284 based on Foata normal form. 0/9822 useless extension candidates. Maximal degree in co-relation 27835. Up to 5371 conditions per place. [2024-11-24 01:48:52,427 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-11-24 01:48:52,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-11-24 01:48:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-24 01:48:52,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-24 01:48:52,431 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-11-24 01:48:52,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-11-24 01:48:52,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-11-24 01:48:52,492 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-11-24 01:48:52,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-11-24 01:48:52,494 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-11-24 01:48:52,494 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-11-24 01:48:52,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-11-24 01:48:52,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:52,495 INFO L206 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] [2024-11-24 01:48:52,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:48:52,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:48:52,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:52,497 INFO L85 PathProgramCache]: Analyzing trace with hash 482397346, now seen corresponding path program 1 times [2024-11-24 01:48:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:52,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65656804] [2024-11-24 01:48:52,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:53,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65656804] [2024-11-24 01:48:53,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65656804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:53,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:53,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:48:53,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349406382] [2024-11-24 01:48:53,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:53,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:48:53,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:53,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:48:53,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:48:56,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-24 01:48:56,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:48:56,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:56,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-24 01:48:56,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:02,967 INFO L124 PetriNetUnfolderBase]: 4080/12657 cut-off events. [2024-11-24 01:49:02,967 INFO L125 PetriNetUnfolderBase]: For 15501/15596 co-relation queries the response was YES. [2024-11-24 01:49:03,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38134 conditions, 12657 events. 4080/12657 cut-off events. For 15501/15596 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 105376 event pairs, 787 based on Foata normal form. 37/12063 useless extension candidates. Maximal degree in co-relation 37985. Up to 4181 conditions per place. [2024-11-24 01:49:03,043 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 906 selfloop transitions, 252 changer transitions 0/1377 dead transitions. [2024-11-24 01:49:03,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1377 transitions, 10662 flow [2024-11-24 01:49:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:49:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-24 01:49:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4735 transitions. [2024-11-24 01:49:03,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6670893209354748 [2024-11-24 01:49:03,054 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 26 states and 4735 transitions. [2024-11-24 01:49:03,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1377 transitions, 10662 flow [2024-11-24 01:49:03,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1377 transitions, 10302 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-11-24 01:49:03,186 INFO L231 Difference]: Finished difference. Result has 363 places, 1001 transitions, 6977 flow [2024-11-24 01:49:03,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6977, PETRI_PLACES=363, PETRI_TRANSITIONS=1001} [2024-11-24 01:49:03,188 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 89 predicate places. [2024-11-24 01:49:03,189 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 1001 transitions, 6977 flow [2024-11-24 01:49:03,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:03,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:03,191 INFO L206 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] [2024-11-24 01:49:03,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:49:03,191 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:49:03,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 743987164, now seen corresponding path program 2 times [2024-11-24 01:49:03,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:03,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245059969] [2024-11-24 01:49:03,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:49:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:03,243 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:49:03,244 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:03,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:03,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245059969] [2024-11-24 01:49:03,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245059969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:03,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:03,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:49:03,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491563359] [2024-11-24 01:49:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:03,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:49:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:03,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:49:03,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:49:06,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-24 01:49:06,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 1001 transitions, 6977 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:06,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:06,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-24 01:49:06,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:11,283 INFO L124 PetriNetUnfolderBase]: 5056/15659 cut-off events. [2024-11-24 01:49:11,283 INFO L125 PetriNetUnfolderBase]: For 27091/27414 co-relation queries the response was YES. [2024-11-24 01:49:11,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51560 conditions, 15659 events. 5056/15659 cut-off events. For 27091/27414 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 135444 event pairs, 1280 based on Foata normal form. 51/14943 useless extension candidates. Maximal degree in co-relation 51391. Up to 2883 conditions per place. [2024-11-24 01:49:11,400 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1322 selfloop transitions, 193 changer transitions 0/1734 dead transitions. [2024-11-24 01:49:11,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 1734 transitions, 15673 flow [2024-11-24 01:49:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:49:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-24 01:49:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-11-24 01:49:11,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-11-24 01:49:11,408 INFO L175 Difference]: Start difference. First operand has 363 places, 1001 transitions, 6977 flow. Second operand 22 states and 3946 transitions. [2024-11-24 01:49:11,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 1734 transitions, 15673 flow [2024-11-24 01:49:11,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1734 transitions, 15420 flow, removed 43 selfloop flow, removed 6 redundant places. [2024-11-24 01:49:11,600 INFO L231 Difference]: Finished difference. Result has 392 places, 1145 transitions, 9013 flow [2024-11-24 01:49:11,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=6826, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9013, PETRI_PLACES=392, PETRI_TRANSITIONS=1145} [2024-11-24 01:49:11,602 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 118 predicate places. [2024-11-24 01:49:11,602 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1145 transitions, 9013 flow [2024-11-24 01:49:11,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:11,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:11,603 INFO L206 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] [2024-11-24 01:49:11,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:49:11,604 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:49:11,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:11,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2127013216, now seen corresponding path program 3 times [2024-11-24 01:49:11,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:11,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865977285] [2024-11-24 01:49:11,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:49:11,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:11,636 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-24 01:49:11,637 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:12,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:12,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865977285] [2024-11-24 01:49:12,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865977285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:12,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:12,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:49:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166417017] [2024-11-24 01:49:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:12,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:49:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:12,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:49:12,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:49:14,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-24 01:49:14,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1145 transitions, 9013 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:14,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:14,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-24 01:49:14,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:20,321 INFO L124 PetriNetUnfolderBase]: 5132/15682 cut-off events. [2024-11-24 01:49:20,321 INFO L125 PetriNetUnfolderBase]: For 34423/34710 co-relation queries the response was YES. [2024-11-24 01:49:20,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55029 conditions, 15682 events. 5132/15682 cut-off events. For 34423/34710 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 135615 event pairs, 941 based on Foata normal form. 77/15030 useless extension candidates. Maximal degree in co-relation 54846. Up to 5166 conditions per place. [2024-11-24 01:49:20,480 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 974 selfloop transitions, 345 changer transitions 0/1538 dead transitions. [2024-11-24 01:49:20,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1538 transitions, 14837 flow [2024-11-24 01:49:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:49:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-24 01:49:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3190 transitions. [2024-11-24 01:49:20,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6873518638224521 [2024-11-24 01:49:20,486 INFO L175 Difference]: Start difference. First operand has 392 places, 1145 transitions, 9013 flow. Second operand 17 states and 3190 transitions. [2024-11-24 01:49:20,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1538 transitions, 14837 flow [2024-11-24 01:49:20,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1538 transitions, 14578 flow, removed 97 selfloop flow, removed 2 redundant places. [2024-11-24 01:49:21,055 INFO L231 Difference]: Finished difference. Result has 417 places, 1219 transitions, 11185 flow [2024-11-24 01:49:21,056 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=8862, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=275, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=830, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11185, PETRI_PLACES=417, PETRI_TRANSITIONS=1219} [2024-11-24 01:49:21,056 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 143 predicate places. [2024-11-24 01:49:21,057 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 1219 transitions, 11185 flow [2024-11-24 01:49:21,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:21,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:21,058 INFO L206 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] [2024-11-24 01:49:21,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:49:21,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:49:21,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1823839556, now seen corresponding path program 4 times [2024-11-24 01:49:21,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:21,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006513412] [2024-11-24 01:49:21,060 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:49:21,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:21,105 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:49:21,108 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:21,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:21,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006513412] [2024-11-24 01:49:21,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006513412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:21,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:21,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:49:21,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997524322] [2024-11-24 01:49:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:21,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:49:21,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:21,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:49:21,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:49:24,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-24 01:49:24,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 1219 transitions, 11185 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:24,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:24,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-24 01:49:24,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:30,895 INFO L124 PetriNetUnfolderBase]: 6077/18481 cut-off events. [2024-11-24 01:49:30,895 INFO L125 PetriNetUnfolderBase]: For 53341/53803 co-relation queries the response was YES. [2024-11-24 01:49:31,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68843 conditions, 18481 events. 6077/18481 cut-off events. For 53341/53803 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 165251 event pairs, 917 based on Foata normal form. 64/17739 useless extension candidates. Maximal degree in co-relation 68648. Up to 3546 conditions per place. [2024-11-24 01:49:31,074 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1397 selfloop transitions, 259 changer transitions 0/1875 dead transitions. [2024-11-24 01:49:31,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1875 transitions, 20317 flow [2024-11-24 01:49:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:49:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 01:49:31,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3763 transitions. [2024-11-24 01:49:31,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656375370661085 [2024-11-24 01:49:31,079 INFO L175 Difference]: Start difference. First operand has 417 places, 1219 transitions, 11185 flow. Second operand 21 states and 3763 transitions. [2024-11-24 01:49:31,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1875 transitions, 20317 flow [2024-11-24 01:49:31,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 1875 transitions, 19986 flow, removed 113 selfloop flow, removed 6 redundant places. [2024-11-24 01:49:31,702 INFO L231 Difference]: Finished difference. Result has 445 places, 1314 transitions, 13378 flow [2024-11-24 01:49:31,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=10976, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=976, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13378, PETRI_PLACES=445, PETRI_TRANSITIONS=1314} [2024-11-24 01:49:31,704 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 171 predicate places. [2024-11-24 01:49:31,704 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 1314 transitions, 13378 flow [2024-11-24 01:49:31,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-11-24 01:49:31,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:31,705 INFO L206 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] [2024-11-24 01:49:31,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:49:31,706 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:49:31,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1466590318, now seen corresponding path program 1 times [2024-11-24 01:49:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963036761] [2024-11-24 01:49:31,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:32,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:32,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963036761] [2024-11-24 01:49:32,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963036761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:32,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216995406] [2024-11-24 01:49:32,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:32,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:32,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:32,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:32,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:49:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:32,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:49:32,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:32,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-24 01:49:32,633 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 01:49:32,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 11 [2024-11-24 01:49:32,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-24 01:49:32,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2024-11-24 01:49:32,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:49:32,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2024-11-24 01:49:32,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:49:32,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 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 [2024-11-24 01:49:32,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-11-24 01:49:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:32,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:32,781 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 3 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|))) is different from false [2024-11-24 01:49:32,810 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-11-24 01:49:32,835 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) (.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse2 |c_ULTIMATE.start_init_#t~nondet30#1|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)))) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse2) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-11-24 01:49:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:39,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216995406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:49:39,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:49:39,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-11-24 01:49:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277916955] [2024-11-24 01:49:39,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:49:39,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:49:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:39,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:49:39,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=295, Unknown=3, NotChecked=108, Total=462 [2024-11-24 01:49:40,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 273 [2024-11-24 01:49:40,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1314 transitions, 13378 flow. Second operand has 22 states, 22 states have (on average 98.18181818181819) internal successors, (2160), 22 states have internal predecessors, (2160), 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) [2024-11-24 01:49:40,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:40,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 273 [2024-11-24 01:49:40,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:54,296 INFO L124 PetriNetUnfolderBase]: 12412/30989 cut-off events. [2024-11-24 01:49:54,296 INFO L125 PetriNetUnfolderBase]: For 121629/121661 co-relation queries the response was YES. [2024-11-24 01:49:54,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123200 conditions, 30989 events. 12412/30989 cut-off events. For 121629/121661 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 270851 event pairs, 2848 based on Foata normal form. 45/29333 useless extension candidates. Maximal degree in co-relation 122979. Up to 12981 conditions per place. [2024-11-24 01:49:54,697 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 2039 selfloop transitions, 254 changer transitions 0/2427 dead transitions. [2024-11-24 01:49:54,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 2427 transitions, 28417 flow [2024-11-24 01:49:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:49:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-24 01:49:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2888 transitions. [2024-11-24 01:49:54,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48085248085248083 [2024-11-24 01:49:54,703 INFO L175 Difference]: Start difference. First operand has 445 places, 1314 transitions, 13378 flow. Second operand 22 states and 2888 transitions. [2024-11-24 01:49:54,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 2427 transitions, 28417 flow [2024-11-24 01:49:55,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 2427 transitions, 27927 flow, removed 173 selfloop flow, removed 6 redundant places. [2024-11-24 01:49:55,889 INFO L231 Difference]: Finished difference. Result has 475 places, 1470 transitions, 15768 flow [2024-11-24 01:49:55,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=13004, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=15768, PETRI_PLACES=475, PETRI_TRANSITIONS=1470} [2024-11-24 01:49:55,891 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 201 predicate places. [2024-11-24 01:49:55,891 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 1470 transitions, 15768 flow [2024-11-24 01:49:55,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 98.18181818181819) internal successors, (2160), 22 states have internal predecessors, (2160), 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) [2024-11-24 01:49:55,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:55,892 INFO L206 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] [2024-11-24 01:49:55,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:49:56,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:49:56,096 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:49:56,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash 366988368, now seen corresponding path program 5 times [2024-11-24 01:49:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714842453] [2024-11-24 01:49:56,097 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:49:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:56,142 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:49:56,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:56,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:56,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714842453] [2024-11-24 01:49:56,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714842453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:56,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763032208] [2024-11-24 01:49:56,891 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:49:56,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:56,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:56,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:56,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:49:57,070 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:49:57,070 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:57,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:49:57,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:57,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-24 01:49:57,112 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 01:49:57,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 11 [2024-11-24 01:49:57,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-24 01:49:57,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2024-11-24 01:49:57,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:49:57,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2024-11-24 01:49:57,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:49:57,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 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 [2024-11-24 01:49:57,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-11-24 01:49:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:57,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:57,297 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))) is different from false [2024-11-24 01:49:57,321 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))))) is different from false [2024-11-24 01:50:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:50:03,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763032208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:50:03,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:50:03,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-11-24 01:50:03,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817434030] [2024-11-24 01:50:03,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:50:03,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:50:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:03,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:50:03,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=249, Unknown=12, NotChecked=66, Total=380 [2024-11-24 01:50:04,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-11-24 01:50:04,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1470 transitions, 15768 flow. Second operand has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-11-24 01:50:04,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:50:04,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-11-24 01:50:04,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:50:20,586 INFO L124 PetriNetUnfolderBase]: 14038/35207 cut-off events. [2024-11-24 01:50:20,586 INFO L125 PetriNetUnfolderBase]: For 162781/162823 co-relation queries the response was YES. [2024-11-24 01:50:21,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148169 conditions, 35207 events. 14038/35207 cut-off events. For 162781/162823 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 316660 event pairs, 3583 based on Foata normal form. 45/33403 useless extension candidates. Maximal degree in co-relation 147995. Up to 17263 conditions per place. [2024-11-24 01:50:21,209 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1979 selfloop transitions, 298 changer transitions 0/2385 dead transitions. [2024-11-24 01:50:21,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 2385 transitions, 28283 flow [2024-11-24 01:50:21,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:50:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 01:50:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2713 transitions. [2024-11-24 01:50:21,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4732251875109018 [2024-11-24 01:50:21,212 INFO L175 Difference]: Start difference. First operand has 475 places, 1470 transitions, 15768 flow. Second operand 21 states and 2713 transitions. [2024-11-24 01:50:21,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 2385 transitions, 28283 flow [2024-11-24 01:50:22,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 2385 transitions, 28157 flow, removed 36 selfloop flow, removed 2 redundant places. [2024-11-24 01:50:22,831 INFO L231 Difference]: Finished difference. Result has 506 places, 1581 transitions, 18797 flow [2024-11-24 01:50:22,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=15711, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18797, PETRI_PLACES=506, PETRI_TRANSITIONS=1581} [2024-11-24 01:50:22,832 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 232 predicate places. [2024-11-24 01:50:22,832 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 1581 transitions, 18797 flow [2024-11-24 01:50:22,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-11-24 01:50:22,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:50:22,833 INFO L206 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] [2024-11-24 01:50:22,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:50:23,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:50:23,034 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 01:50:23,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1532688078, now seen corresponding path program 2 times [2024-11-24 01:50:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883966761] [2024-11-24 01:50:23,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:50:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:23,074 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:50:23,074 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:50:23,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:50:23,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:23,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883966761] [2024-11-24 01:50:23,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883966761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:50:23,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828213446] [2024-11-24 01:50:23,777 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:50:23,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:50:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:50:23,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:50:23,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab6da340-6f54-4a06-aee2-aa4a4bbd8417/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:50:24,758 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:50:24,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:50:24,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-24 01:50:24,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:24,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-24 01:50:24,810 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 01:50:24,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 11 [2024-11-24 01:50:25,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-24 01:50:25,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-24 01:50:25,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 01:50:25,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 01:50:25,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2024-11-24 01:50:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:50:25,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:50:25,357 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))))) is different from false [2024-11-24 01:50:25,379 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse1))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-11-24 01:50:25,403 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) (.cse2 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|) .cse2 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse2) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-11-24 01:50:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:50:28,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828213446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:50:28,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:50:28,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 14] total 32 [2024-11-24 01:50:28,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768659295] [2024-11-24 01:50:28,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:50:28,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-24 01:50:28,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:28,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-24 01:50:28,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=766, Unknown=3, NotChecked=174, Total=1056 [2024-11-24 01:50:28,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 273 [2024-11-24 01:50:28,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 1581 transitions, 18797 flow. Second operand has 33 states, 33 states have (on average 95.63636363636364) internal successors, (3156), 33 states have internal predecessors, (3156), 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) [2024-11-24 01:50:28,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:50:28,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 273 [2024-11-24 01:50:28,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand