./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB --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 a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:21:02,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:21:02,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:21:02,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:21:02,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:21:02,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:21:02,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:21:02,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:21:02,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:21:02,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:21:02,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:21:02,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:21:02,362 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:21:02,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:21:02,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:21:02,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:21:02,364 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:21:02,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:21:02,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:21:02,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:02,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:02,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:02,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:21:02,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:21:02,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:21:02,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:21:02,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:21:02,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:21:02,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:21:02,366 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_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df [2024-11-28 03:21:02,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:21:02,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:21:02,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:21:02,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:21:02,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:21:02,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2024-11-28 03:21:05,734 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/data/ee0a322c3/2244699fabb642d9a06112d9233a84dd/FLAGe261f8ab4 [2024-11-28 03:21:06,196 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:21:06,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2024-11-28 03:21:06,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/data/ee0a322c3/2244699fabb642d9a06112d9233a84dd/FLAGe261f8ab4 [2024-11-28 03:21:06,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/data/ee0a322c3/2244699fabb642d9a06112d9233a84dd [2024-11-28 03:21:06,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:21:06,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:21:06,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:06,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:21:06,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:21:06,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:06" (1/1) ... [2024-11-28 03:21:06,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec1d83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:06, skipping insertion in model container [2024-11-28 03:21:06,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:06" (1/1) ... [2024-11-28 03:21:06,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:21:06,828 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,829 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,830 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,831 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:06,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:21:06,959 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,960 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,961 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,965 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:21:06,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:07,051 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:21:07,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07 WrapperNode [2024-11-28 03:21:07,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:07,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:07,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:21:07,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:21:07,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,115 INFO L138 Inliner]: procedures = 274, calls = 98, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 278 [2024-11-28 03:21:07,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:07,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:21:07,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:21:07,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:21:07,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,183 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:21:07,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:21:07,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:21:07,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:21:07,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2024-11-28 03:21:07,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:07,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:07,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:21:07,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:21:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-28 03:21:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 03:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:21:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:21:07,277 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:21:07,434 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:21:07,436 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:21:08,292 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:21:08,292 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:21:08,332 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:21:08,336 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:21:08,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:08 BoogieIcfgContainer [2024-11-28 03:21:08,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:21:08,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:21:08,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:21:08,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:21:08,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:06" (1/3) ... [2024-11-28 03:21:08,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305fda95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:08, skipping insertion in model container [2024-11-28 03:21:08,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (2/3) ... [2024-11-28 03:21:08,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305fda95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:08, skipping insertion in model container [2024-11-28 03:21:08,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:08" (3/3) ... [2024-11-28 03:21:08,349 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i [2024-11-28 03:21:08,368 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:21:08,370 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_22-nocollapse.i that has 2 procedures, 305 locations, 1 initial locations, 4 loop locations, and 14 error locations. [2024-11-28 03:21:08,370 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:21:08,564 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:21:08,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 377 places, 385 transitions, 778 flow [2024-11-28 03:21:08,859 INFO L124 PetriNetUnfolderBase]: 15/383 cut-off events. [2024-11-28 03:21:08,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:08,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 383 events. 15/383 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 589 event pairs, 0 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2024-11-28 03:21:08,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 377 places, 385 transitions, 778 flow [2024-11-28 03:21:08,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 383 transitions, 772 flow [2024-11-28 03:21:08,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:21:08,919 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;@5b6f2337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:21:08,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-28 03:21:08,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:21:08,982 INFO L124 PetriNetUnfolderBase]: 2/117 cut-off events. [2024-11-28 03:21:08,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:08,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:08,984 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:08,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:08,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash 696322849, now seen corresponding path program 1 times [2024-11-28 03:21:09,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:09,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727115959] [2024-11-28 03:21:09,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:09,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:10,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:10,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727115959] [2024-11-28 03:21:10,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727115959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:10,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:10,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233229811] [2024-11-28 03:21:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:10,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:10,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:10,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:10,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:11,466 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 385 [2024-11-28 03:21:11,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 383 transitions, 772 flow. Second operand has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-11-28 03:21:11,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:11,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 385 [2024-11-28 03:21:11,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:12,192 INFO L124 PetriNetUnfolderBase]: 449/1850 cut-off events. [2024-11-28 03:21:12,193 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-28 03:21:12,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2749 conditions, 1850 events. 449/1850 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11566 event pairs, 342 based on Foata normal form. 153/1795 useless extension candidates. Maximal degree in co-relation 2472. Up to 846 conditions per place. [2024-11-28 03:21:12,211 INFO L140 encePairwiseOnDemand]: 364/385 looper letters, 72 selfloop transitions, 10 changer transitions 1/372 dead transitions. [2024-11-28 03:21:12,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 372 transitions, 914 flow [2024-11-28 03:21:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1845 transitions. [2024-11-28 03:21:12,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2024-11-28 03:21:12,235 INFO L175 Difference]: Start difference. First operand has 375 places, 383 transitions, 772 flow. Second operand 6 states and 1845 transitions. [2024-11-28 03:21:12,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 372 transitions, 914 flow [2024-11-28 03:21:12,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 372 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:21:12,251 INFO L231 Difference]: Finished difference. Result has 376 places, 371 transitions, 766 flow [2024-11-28 03:21:12,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=376, PETRI_TRANSITIONS=371} [2024-11-28 03:21:12,258 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 1 predicate places. [2024-11-28 03:21:12,258 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 371 transitions, 766 flow [2024-11-28 03:21:12,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-11-28 03:21:12,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:12,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:12,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:21:12,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:12,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash -553987549, now seen corresponding path program 1 times [2024-11-28 03:21:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:12,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766216366] [2024-11-28 03:21:12,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:12,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:12,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766216366] [2024-11-28 03:21:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766216366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:12,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899934721] [2024-11-28 03:21:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:12,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:12,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:12,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:12,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:13,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 385 [2024-11-28 03:21:13,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 371 transitions, 766 flow. Second operand has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-11-28 03:21:13,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:13,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 385 [2024-11-28 03:21:13,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:14,305 INFO L124 PetriNetUnfolderBase]: 449/1847 cut-off events. [2024-11-28 03:21:14,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:14,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2755 conditions, 1847 events. 449/1847 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11437 event pairs, 342 based on Foata normal form. 0/1642 useless extension candidates. Maximal degree in co-relation 2581. Up to 846 conditions per place. [2024-11-28 03:21:14,319 INFO L140 encePairwiseOnDemand]: 373/385 looper letters, 72 selfloop transitions, 10 changer transitions 0/369 dead transitions. [2024-11-28 03:21:14,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 369 transitions, 926 flow [2024-11-28 03:21:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:14,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1836 transitions. [2024-11-28 03:21:14,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7948051948051948 [2024-11-28 03:21:14,324 INFO L175 Difference]: Start difference. First operand has 376 places, 371 transitions, 766 flow. Second operand 6 states and 1836 transitions. [2024-11-28 03:21:14,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 369 transitions, 926 flow [2024-11-28 03:21:14,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 369 transitions, 906 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:14,333 INFO L231 Difference]: Finished difference. Result has 373 places, 369 transitions, 762 flow [2024-11-28 03:21:14,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=373, PETRI_TRANSITIONS=369} [2024-11-28 03:21:14,334 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -2 predicate places. [2024-11-28 03:21:14,335 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 369 transitions, 762 flow [2024-11-28 03:21:14,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-11-28 03:21:14,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:14,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:14,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:21:14,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:14,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:14,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1670510739, now seen corresponding path program 1 times [2024-11-28 03:21:14,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:14,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651068320] [2024-11-28 03:21:14,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:14,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:14,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651068320] [2024-11-28 03:21:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651068320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:14,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:21:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122390283] [2024-11-28 03:21:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:14,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:21:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:14,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:21:14,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:21:14,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 385 [2024-11-28 03:21:14,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 369 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2024-11-28 03:21:14,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:14,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 385 [2024-11-28 03:21:14,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:14,620 INFO L124 PetriNetUnfolderBase]: 29/671 cut-off events. [2024-11-28 03:21:14,620 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:14,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 671 events. 29/671 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2396 event pairs, 18 based on Foata normal form. 1/620 useless extension candidates. Maximal degree in co-relation 435. Up to 45 conditions per place. [2024-11-28 03:21:14,624 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 11 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2024-11-28 03:21:14,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 370 transitions, 790 flow [2024-11-28 03:21:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:21:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:21:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2024-11-28 03:21:14,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9575757575757575 [2024-11-28 03:21:14,628 INFO L175 Difference]: Start difference. First operand has 373 places, 369 transitions, 762 flow. Second operand 3 states and 1106 transitions. [2024-11-28 03:21:14,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 370 transitions, 790 flow [2024-11-28 03:21:14,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 370 transitions, 770 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:14,638 INFO L231 Difference]: Finished difference. Result has 371 places, 370 transitions, 754 flow [2024-11-28 03:21:14,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=371, PETRI_TRANSITIONS=370} [2024-11-28 03:21:14,640 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -4 predicate places. [2024-11-28 03:21:14,640 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 370 transitions, 754 flow [2024-11-28 03:21:14,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2024-11-28 03:21:14,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:14,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:14,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:21:14,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -170969589, now seen corresponding path program 1 times [2024-11-28 03:21:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:14,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153449402] [2024-11-28 03:21:14,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:14,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:15,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:15,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:15,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153449402] [2024-11-28 03:21:15,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153449402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:15,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:15,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:15,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700468] [2024-11-28 03:21:15,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:15,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:15,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:15,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:16,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 385 [2024-11-28 03:21:16,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 370 transitions, 754 flow. Second operand has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 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) [2024-11-28 03:21:16,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:16,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 385 [2024-11-28 03:21:16,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:16,518 INFO L124 PetriNetUnfolderBase]: 450/1969 cut-off events. [2024-11-28 03:21:16,519 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:21:16,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 1969 events. 450/1969 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12274 event pairs, 342 based on Foata normal form. 0/1760 useless extension candidates. Maximal degree in co-relation 2655. Up to 894 conditions per place. [2024-11-28 03:21:16,532 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 79 selfloop transitions, 5 changer transitions 0/369 dead transitions. [2024-11-28 03:21:16,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 369 transitions, 920 flow [2024-11-28 03:21:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2024-11-28 03:21:16,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7926406926406926 [2024-11-28 03:21:16,539 INFO L175 Difference]: Start difference. First operand has 371 places, 370 transitions, 754 flow. Second operand 6 states and 1831 transitions. [2024-11-28 03:21:16,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 369 transitions, 920 flow [2024-11-28 03:21:16,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 369 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:16,547 INFO L231 Difference]: Finished difference. Result has 374 places, 369 transitions, 760 flow [2024-11-28 03:21:16,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=374, PETRI_TRANSITIONS=369} [2024-11-28 03:21:16,549 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -1 predicate places. [2024-11-28 03:21:16,550 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 369 transitions, 760 flow [2024-11-28 03:21:16,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 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) [2024-11-28 03:21:16,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:16,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:16,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:21:16,552 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:16,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:16,553 INFO L85 PathProgramCache]: Analyzing trace with hash -492828907, now seen corresponding path program 1 times [2024-11-28 03:21:16,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:16,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664864236] [2024-11-28 03:21:16,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:16,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664864236] [2024-11-28 03:21:16,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664864236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:16,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:16,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:21:16,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526534164] [2024-11-28 03:21:16,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:16,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:21:16,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:16,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:21:16,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:21:16,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 385 [2024-11-28 03:21:16,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 369 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2024-11-28 03:21:16,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:16,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 385 [2024-11-28 03:21:16,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:16,854 INFO L124 PetriNetUnfolderBase]: 29/857 cut-off events. [2024-11-28 03:21:16,854 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:16,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 857 events. 29/857 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2382 event pairs, 18 based on Foata normal form. 2/801 useless extension candidates. Maximal degree in co-relation 513. Up to 49 conditions per place. [2024-11-28 03:21:16,858 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 11 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2024-11-28 03:21:16,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 370 transitions, 788 flow [2024-11-28 03:21:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:21:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:21:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2024-11-28 03:21:16,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9575757575757575 [2024-11-28 03:21:16,862 INFO L175 Difference]: Start difference. First operand has 374 places, 369 transitions, 760 flow. Second operand 3 states and 1106 transitions. [2024-11-28 03:21:16,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 370 transitions, 788 flow [2024-11-28 03:21:16,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 370 transitions, 778 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:16,869 INFO L231 Difference]: Finished difference. Result has 372 places, 370 transitions, 762 flow [2024-11-28 03:21:16,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=372, PETRI_TRANSITIONS=370} [2024-11-28 03:21:16,870 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -3 predicate places. [2024-11-28 03:21:16,870 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 370 transitions, 762 flow [2024-11-28 03:21:16,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2024-11-28 03:21:16,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:16,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:16,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:21:16,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:16,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 440351350, now seen corresponding path program 1 times [2024-11-28 03:21:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691782629] [2024-11-28 03:21:16,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:16,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:17,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:17,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691782629] [2024-11-28 03:21:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691782629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:17,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:17,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:17,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852024413] [2024-11-28 03:21:17,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:17,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:17,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:17,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:18,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 385 [2024-11-28 03:21:18,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 370 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 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) [2024-11-28 03:21:18,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:18,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 385 [2024-11-28 03:21:18,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:18,740 INFO L124 PetriNetUnfolderBase]: 75/1169 cut-off events. [2024-11-28 03:21:18,740 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:21:18,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 1169 events. 75/1169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4544 event pairs, 42 based on Foata normal form. 0/1076 useless extension candidates. Maximal degree in co-relation 953. Up to 263 conditions per place. [2024-11-28 03:21:18,748 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 54 selfloop transitions, 5 changer transitions 0/369 dead transitions. [2024-11-28 03:21:18,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 369 transitions, 878 flow [2024-11-28 03:21:18,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1956 transitions. [2024-11-28 03:21:18,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8467532467532467 [2024-11-28 03:21:18,753 INFO L175 Difference]: Start difference. First operand has 372 places, 370 transitions, 762 flow. Second operand 6 states and 1956 transitions. [2024-11-28 03:21:18,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 369 transitions, 878 flow [2024-11-28 03:21:18,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 369 transitions, 876 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:18,761 INFO L231 Difference]: Finished difference. Result has 375 places, 369 transitions, 768 flow [2024-11-28 03:21:18,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=768, PETRI_PLACES=375, PETRI_TRANSITIONS=369} [2024-11-28 03:21:18,762 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 0 predicate places. [2024-11-28 03:21:18,762 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 369 transitions, 768 flow [2024-11-28 03:21:18,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 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) [2024-11-28 03:21:18,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:18,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:18,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:21:18,765 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:18,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash 331920621, now seen corresponding path program 1 times [2024-11-28 03:21:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:18,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797484725] [2024-11-28 03:21:18,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:19,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797484725] [2024-11-28 03:21:19,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797484725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:19,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:19,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:19,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904044791] [2024-11-28 03:21:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:19,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:19,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:19,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:20,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 385 [2024-11-28 03:21:20,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 369 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 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) [2024-11-28 03:21:20,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:20,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 385 [2024-11-28 03:21:20,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:20,761 INFO L124 PetriNetUnfolderBase]: 450/2149 cut-off events. [2024-11-28 03:21:20,762 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:21:20,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 2149 events. 450/2149 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12212 event pairs, 342 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 2698. Up to 960 conditions per place. [2024-11-28 03:21:20,773 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 79 selfloop transitions, 5 changer transitions 0/368 dead transitions. [2024-11-28 03:21:20,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 368 transitions, 934 flow [2024-11-28 03:21:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2024-11-28 03:21:20,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7926406926406926 [2024-11-28 03:21:20,779 INFO L175 Difference]: Start difference. First operand has 375 places, 369 transitions, 768 flow. Second operand 6 states and 1831 transitions. [2024-11-28 03:21:20,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 368 transitions, 934 flow [2024-11-28 03:21:20,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 368 transitions, 924 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:20,788 INFO L231 Difference]: Finished difference. Result has 374 places, 368 transitions, 766 flow [2024-11-28 03:21:20,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=374, PETRI_TRANSITIONS=368} [2024-11-28 03:21:20,791 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -1 predicate places. [2024-11-28 03:21:20,791 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 368 transitions, 766 flow [2024-11-28 03:21:20,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 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) [2024-11-28 03:21:20,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:20,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:20,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:21:20,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:20,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash -814627984, now seen corresponding path program 1 times [2024-11-28 03:21:20,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452730083] [2024-11-28 03:21:20,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:21,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452730083] [2024-11-28 03:21:21,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452730083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:21,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:21,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:21,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881091562] [2024-11-28 03:21:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:21,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:21,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:21,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:21,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:22,032 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 385 [2024-11-28 03:21:22,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 368 transitions, 766 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2024-11-28 03:21:22,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:22,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 385 [2024-11-28 03:21:22,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:22,499 INFO L124 PetriNetUnfolderBase]: 450/2145 cut-off events. [2024-11-28 03:21:22,499 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:21:22,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 2145 events. 450/2145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12216 event pairs, 342 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 2714. Up to 944 conditions per place. [2024-11-28 03:21:22,511 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 75 selfloop transitions, 5 changer transitions 0/367 dead transitions. [2024-11-28 03:21:22,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 367 transitions, 924 flow [2024-11-28 03:21:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1851 transitions. [2024-11-28 03:21:22,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8012987012987013 [2024-11-28 03:21:22,518 INFO L175 Difference]: Start difference. First operand has 374 places, 368 transitions, 766 flow. Second operand 6 states and 1851 transitions. [2024-11-28 03:21:22,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 367 transitions, 924 flow [2024-11-28 03:21:22,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 367 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:22,525 INFO L231 Difference]: Finished difference. Result has 373 places, 367 transitions, 764 flow [2024-11-28 03:21:22,526 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=373, PETRI_TRANSITIONS=367} [2024-11-28 03:21:22,526 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -2 predicate places. [2024-11-28 03:21:22,526 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 367 transitions, 764 flow [2024-11-28 03:21:22,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2024-11-28 03:21:22,528 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:22,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:22,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:21:22,528 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:22,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:22,529 INFO L85 PathProgramCache]: Analyzing trace with hash -331373769, now seen corresponding path program 1 times [2024-11-28 03:21:22,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:22,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031360636] [2024-11-28 03:21:22,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:22,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:21:23,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:23,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031360636] [2024-11-28 03:21:23,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031360636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:23,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:23,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:23,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032389587] [2024-11-28 03:21:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:23,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:23,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:23,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:23,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:23,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 385 [2024-11-28 03:21:23,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 367 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2024-11-28 03:21:23,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:23,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 385 [2024-11-28 03:21:23,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:24,254 INFO L124 PetriNetUnfolderBase]: 450/2141 cut-off events. [2024-11-28 03:21:24,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:24,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3181 conditions, 2141 events. 450/2141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12209 event pairs, 342 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 2729. Up to 944 conditions per place. [2024-11-28 03:21:24,269 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 75 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2024-11-28 03:21:24,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 366 transitions, 922 flow [2024-11-28 03:21:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1851 transitions. [2024-11-28 03:21:24,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8012987012987013 [2024-11-28 03:21:24,275 INFO L175 Difference]: Start difference. First operand has 373 places, 367 transitions, 764 flow. Second operand 6 states and 1851 transitions. [2024-11-28 03:21:24,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 366 transitions, 922 flow [2024-11-28 03:21:24,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 366 transitions, 912 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:24,334 INFO L231 Difference]: Finished difference. Result has 372 places, 366 transitions, 762 flow [2024-11-28 03:21:24,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=372, PETRI_TRANSITIONS=366} [2024-11-28 03:21:24,336 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -3 predicate places. [2024-11-28 03:21:24,336 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 366 transitions, 762 flow [2024-11-28 03:21:24,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2024-11-28 03:21:24,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:24,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:24,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:21:24,339 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:24,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1393185585, now seen corresponding path program 1 times [2024-11-28 03:21:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714309584] [2024-11-28 03:21:24,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:21:25,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714309584] [2024-11-28 03:21:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714309584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:25,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525954655] [2024-11-28 03:21:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:25,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:25,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:25,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:25,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 385 [2024-11-28 03:21:25,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 366 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 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) [2024-11-28 03:21:25,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:25,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 385 [2024-11-28 03:21:25,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:26,294 INFO L124 PetriNetUnfolderBase]: 450/2137 cut-off events. [2024-11-28 03:21:26,294 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:21:26,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3197 conditions, 2137 events. 450/2137 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12163 event pairs, 342 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 2742. Up to 964 conditions per place. [2024-11-28 03:21:26,308 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 80 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2024-11-28 03:21:26,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 365 transitions, 930 flow [2024-11-28 03:21:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1826 transitions. [2024-11-28 03:21:26,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2024-11-28 03:21:26,313 INFO L175 Difference]: Start difference. First operand has 372 places, 366 transitions, 762 flow. Second operand 6 states and 1826 transitions. [2024-11-28 03:21:26,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 365 transitions, 930 flow [2024-11-28 03:21:26,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 365 transitions, 920 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:26,323 INFO L231 Difference]: Finished difference. Result has 371 places, 365 transitions, 760 flow [2024-11-28 03:21:26,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=371, PETRI_TRANSITIONS=365} [2024-11-28 03:21:26,325 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -4 predicate places. [2024-11-28 03:21:26,326 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 365 transitions, 760 flow [2024-11-28 03:21:26,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 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) [2024-11-28 03:21:26,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:26,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:26,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:21:26,328 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:26,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:26,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1414900937, now seen corresponding path program 1 times [2024-11-28 03:21:26,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:26,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964611471] [2024-11-28 03:21:26,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:21:26,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:26,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964611471] [2024-11-28 03:21:26,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964611471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:26,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361996696] [2024-11-28 03:21:26,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:26,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:26,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:26,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:26,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:21:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:26,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:21:26,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:21:27,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:21:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361996696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:27,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:21:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140113130] [2024-11-28 03:21:27,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:27,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:21:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:27,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:21:27,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:21:27,466 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 385 [2024-11-28 03:21:27,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 365 transitions, 760 flow. Second operand has 10 states, 10 states have (on average 363.0) internal successors, (3630), 10 states have internal predecessors, (3630), 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) [2024-11-28 03:21:27,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:27,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 385 [2024-11-28 03:21:27,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:27,758 INFO L124 PetriNetUnfolderBase]: 29/1021 cut-off events. [2024-11-28 03:21:27,758 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:21:27,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 1021 events. 29/1021 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1826 event pairs, 18 based on Foata normal form. 4/987 useless extension candidates. Maximal degree in co-relation 506. Up to 49 conditions per place. [2024-11-28 03:21:27,763 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 15 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2024-11-28 03:21:27,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 373 transitions, 826 flow [2024-11-28 03:21:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3275 transitions. [2024-11-28 03:21:27,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9451659451659452 [2024-11-28 03:21:27,770 INFO L175 Difference]: Start difference. First operand has 371 places, 365 transitions, 760 flow. Second operand 9 states and 3275 transitions. [2024-11-28 03:21:27,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 373 transitions, 826 flow [2024-11-28 03:21:27,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 373 transitions, 816 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:27,777 INFO L231 Difference]: Finished difference. Result has 377 places, 371 transitions, 800 flow [2024-11-28 03:21:27,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=800, PETRI_PLACES=377, PETRI_TRANSITIONS=371} [2024-11-28 03:21:27,779 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 2 predicate places. [2024-11-28 03:21:27,779 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 371 transitions, 800 flow [2024-11-28 03:21:27,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 363.0) internal successors, (3630), 10 states have internal predecessors, (3630), 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) [2024-11-28 03:21:27,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:27,782 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:27,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:21:27,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:21:27,984 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:27,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:27,986 INFO L85 PathProgramCache]: Analyzing trace with hash 124225531, now seen corresponding path program 2 times [2024-11-28 03:21:27,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:27,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081194889] [2024-11-28 03:21:27,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:27,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:28,106 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:28,107 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 03:21:28,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:28,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081194889] [2024-11-28 03:21:28,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081194889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:28,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:28,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:28,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513587188] [2024-11-28 03:21:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:28,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:28,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:28,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:30,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 385 [2024-11-28 03:21:30,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 371 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 324.5) internal successors, (1947), 6 states have internal predecessors, (1947), 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) [2024-11-28 03:21:30,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:30,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 385 [2024-11-28 03:21:30,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:30,640 INFO L124 PetriNetUnfolderBase]: 199/1922 cut-off events. [2024-11-28 03:21:30,641 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-28 03:21:30,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 1922 events. 199/1922 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8828 event pairs, 54 based on Foata normal form. 0/1780 useless extension candidates. Maximal degree in co-relation 1891. Up to 448 conditions per place. [2024-11-28 03:21:30,651 INFO L140 encePairwiseOnDemand]: 373/385 looper letters, 71 selfloop transitions, 23 changer transitions 0/406 dead transitions. [2024-11-28 03:21:30,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 406 transitions, 1066 flow [2024-11-28 03:21:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1997 transitions. [2024-11-28 03:21:30,656 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8645021645021645 [2024-11-28 03:21:30,656 INFO L175 Difference]: Start difference. First operand has 377 places, 371 transitions, 800 flow. Second operand 6 states and 1997 transitions. [2024-11-28 03:21:30,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 406 transitions, 1066 flow [2024-11-28 03:21:30,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 406 transitions, 1060 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:30,665 INFO L231 Difference]: Finished difference. Result has 386 places, 393 transitions, 952 flow [2024-11-28 03:21:30,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=386, PETRI_TRANSITIONS=393} [2024-11-28 03:21:30,666 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 11 predicate places. [2024-11-28 03:21:30,666 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 393 transitions, 952 flow [2024-11-28 03:21:30,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.5) internal successors, (1947), 6 states have internal predecessors, (1947), 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) [2024-11-28 03:21:30,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:30,668 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:30,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:21:30,668 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:30,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:30,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1779422030, now seen corresponding path program 1 times [2024-11-28 03:21:30,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:30,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964893049] [2024-11-28 03:21:30,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:30,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-28 03:21:31,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:31,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964893049] [2024-11-28 03:21:31,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964893049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:31,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825251633] [2024-11-28 03:21:31,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:31,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:31,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:31,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:31,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:21:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:31,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:21:31,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:21:32,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:21:32,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825251633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:32,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:32,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-28 03:21:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234497154] [2024-11-28 03:21:32,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:32,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:21:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:32,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:21:32,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:21:32,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 385 [2024-11-28 03:21:32,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 393 transitions, 952 flow. Second operand has 19 states, 19 states have (on average 357.6842105263158) internal successors, (6796), 19 states have internal predecessors, (6796), 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) [2024-11-28 03:21:32,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:32,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 385 [2024-11-28 03:21:32,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:35,226 INFO L124 PetriNetUnfolderBase]: 186/3460 cut-off events. [2024-11-28 03:21:35,226 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2024-11-28 03:21:35,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4184 conditions, 3460 events. 186/3460 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9537 event pairs, 55 based on Foata normal form. 13/3304 useless extension candidates. Maximal degree in co-relation 2868. Up to 146 conditions per place. [2024-11-28 03:21:35,235 INFO L140 encePairwiseOnDemand]: 374/385 looper letters, 47 selfloop transitions, 68 changer transitions 0/479 dead transitions. [2024-11-28 03:21:35,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 479 transitions, 1592 flow [2024-11-28 03:21:35,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 03:21:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-28 03:21:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 22493 transitions. [2024-11-28 03:21:35,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9273551844980417 [2024-11-28 03:21:35,269 INFO L175 Difference]: Start difference. First operand has 386 places, 393 transitions, 952 flow. Second operand 63 states and 22493 transitions. [2024-11-28 03:21:35,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 479 transitions, 1592 flow [2024-11-28 03:21:35,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 479 transitions, 1592 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:21:35,279 INFO L231 Difference]: Finished difference. Result has 464 places, 455 transitions, 1472 flow [2024-11-28 03:21:35,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1472, PETRI_PLACES=464, PETRI_TRANSITIONS=455} [2024-11-28 03:21:35,280 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 89 predicate places. [2024-11-28 03:21:35,280 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 455 transitions, 1472 flow [2024-11-28 03:21:35,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 357.6842105263158) internal successors, (6796), 19 states have internal predecessors, (6796), 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) [2024-11-28 03:21:35,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:35,284 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:35,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:21:35,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:21:35,484 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:35,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:35,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1588269440, now seen corresponding path program 2 times [2024-11-28 03:21:35,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:35,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983367389] [2024-11-28 03:21:35,487 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:35,802 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:35,802 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12365 trivial. 0 not checked. [2024-11-28 03:21:36,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:36,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983367389] [2024-11-28 03:21:36,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983367389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:36,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:36,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66130646] [2024-11-28 03:21:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:36,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:36,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:36,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:36,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:37,632 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 385 [2024-11-28 03:21:37,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 455 transitions, 1472 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 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) [2024-11-28 03:21:37,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:37,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 385 [2024-11-28 03:21:37,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:39,453 INFO L124 PetriNetUnfolderBase]: 311/4016 cut-off events. [2024-11-28 03:21:39,453 INFO L125 PetriNetUnfolderBase]: For 702/736 co-relation queries the response was YES. [2024-11-28 03:21:39,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5874 conditions, 4016 events. 311/4016 cut-off events. For 702/736 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15576 event pairs, 61 based on Foata normal form. 8/3810 useless extension candidates. Maximal degree in co-relation 3815. Up to 1009 conditions per place. [2024-11-28 03:21:39,466 INFO L140 encePairwiseOnDemand]: 373/385 looper letters, 84 selfloop transitions, 31 changer transitions 0/494 dead transitions. [2024-11-28 03:21:39,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 494 transitions, 1822 flow [2024-11-28 03:21:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1993 transitions. [2024-11-28 03:21:39,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8627705627705627 [2024-11-28 03:21:39,470 INFO L175 Difference]: Start difference. First operand has 464 places, 455 transitions, 1472 flow. Second operand 6 states and 1993 transitions. [2024-11-28 03:21:39,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 494 transitions, 1822 flow [2024-11-28 03:21:39,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 494 transitions, 1746 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-28 03:21:39,491 INFO L231 Difference]: Finished difference. Result has 467 places, 485 transitions, 1654 flow [2024-11-28 03:21:39,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1654, PETRI_PLACES=467, PETRI_TRANSITIONS=485} [2024-11-28 03:21:39,493 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 92 predicate places. [2024-11-28 03:21:39,494 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 485 transitions, 1654 flow [2024-11-28 03:21:39,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 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) [2024-11-28 03:21:39,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:39,499 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:39,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:21:39,503 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:39,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1216993494, now seen corresponding path program 1 times [2024-11-28 03:21:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489853480] [2024-11-28 03:21:39,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-28 03:21:43,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:43,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489853480] [2024-11-28 03:21:43,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489853480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:43,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224640960] [2024-11-28 03:21:43,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:43,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:43,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:43,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:43,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:21:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:45,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 5678 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:21:45,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-28 03:21:46,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-28 03:21:47,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224640960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:47,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:47,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-28 03:21:47,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008448941] [2024-11-28 03:21:47,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:47,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:21:47,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:47,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:21:47,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:21:47,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 385 [2024-11-28 03:21:47,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 485 transitions, 1654 flow. Second operand has 34 states, 34 states have (on average 363.1764705882353) internal successors, (12348), 34 states have internal predecessors, (12348), 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) [2024-11-28 03:21:47,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:47,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 385 [2024-11-28 03:21:47,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:50,954 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([790] L1039-4-->L1044-2: Formula: (and (= |v_fThread1of1ForFork1_#t~ret20#1_1| 0) (= |v_#pthreadsMutex_11| (store |v_#pthreadsMutex_12| |v_~#c~0.base_89| (store (select |v_#pthreadsMutex_12| |v_~#c~0.base_89|) (+ (* |v_fThread1of1ForFork1_~j~0#1_29| 24) |v_~#c~0.offset_89| 80) 0)))) InVars {~#c~0.base=|v_~#c~0.base_89|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_12|, ~#c~0.offset=|v_~#c~0.offset_89|} OutVars{~#c~0.base=|v_~#c~0.base_89|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_11|, fThread1of1ForFork1_#t~ret20#1=|v_fThread1of1ForFork1_#t~ret20#1_1|, ~#c~0.offset=|v_~#c~0.offset_89|} AuxVars[] AssignedVars[#pthreadsMutex, fThread1of1ForFork1_#t~ret20#1][421], [436#true, 376#true, Black: 394#(= |ULTIMATE.start_main_~i~0#1| 0), 4591#true, 263#ULTIMATE.startFINALtrue, 1891#true, Black: 404#(= |ULTIMATE.start_main_~j~1#1| 0), 4602#true, Black: 3315#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 440#(<= |ULTIMATE.start_main_~j~1#1| 1), Black: 4502#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 28)), Black: 4508#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 29)), Black: 1268#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 1906#(<= |ULTIMATE.start_main_~i~0#1| 1), 378#true, Black: 3598#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 3062#(<= |ULTIMATE.start_main_~j~1#1| 3), Black: 4512#(and (= 0 |ULTIMATE.start_main_#t~post25#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4496#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 27)), Black: 4538#(and (<= |ULTIMATE.start_main_~j~1#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 3326#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 1904#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 1894#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 4544#(and (<= |ULTIMATE.start_main_~j~1#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), 71#L1044-2true, Black: 4490#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 3)), Black: 1895#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 1893#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), Black: 1896#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 4532#(and (<= |ULTIMATE.start_main_~j~1#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4550#(and (<= |ULTIMATE.start_main_~j~1#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4594#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), 1902#true, Black: 4593#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0), Black: 4596#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= 0 (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))))), 175#L1044-2true, Black: 4595#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0))]) [2024-11-28 03:21:50,955 INFO L294 olderBase$Statistics]: this new event has 2977 ancestors and is cut-off event [2024-11-28 03:21:50,955 INFO L297 olderBase$Statistics]: existing Event has 2950 ancestors and is cut-off event [2024-11-28 03:21:50,955 INFO L297 olderBase$Statistics]: existing Event has 2950 ancestors and is cut-off event [2024-11-28 03:21:50,955 INFO L297 olderBase$Statistics]: existing Event has 2950 ancestors and is cut-off event [2024-11-28 03:21:52,352 INFO L124 PetriNetUnfolderBase]: 340/6486 cut-off events. [2024-11-28 03:21:52,352 INFO L125 PetriNetUnfolderBase]: For 3569/3587 co-relation queries the response was YES. [2024-11-28 03:21:52,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8384 conditions, 6486 events. 340/6486 cut-off events. For 3569/3587 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17996 event pairs, 100 based on Foata normal form. 30/6248 useless extension candidates. Maximal degree in co-relation 5734. Up to 259 conditions per place. [2024-11-28 03:21:52,371 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 47 selfloop transitions, 135 changer transitions 0/586 dead transitions. [2024-11-28 03:21:52,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 586 transitions, 2782 flow [2024-11-28 03:21:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-28 03:21:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-28 03:21:52,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16325 transitions. [2024-11-28 03:21:52,384 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9422799422799423 [2024-11-28 03:21:52,384 INFO L175 Difference]: Start difference. First operand has 467 places, 485 transitions, 1654 flow. Second operand 45 states and 16325 transitions. [2024-11-28 03:21:52,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 586 transitions, 2782 flow [2024-11-28 03:21:52,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 586 transitions, 2782 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:21:52,406 INFO L231 Difference]: Finished difference. Result has 520 places, 560 transitions, 2528 flow [2024-11-28 03:21:52,407 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2528, PETRI_PLACES=520, PETRI_TRANSITIONS=560} [2024-11-28 03:21:52,408 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 145 predicate places. [2024-11-28 03:21:52,408 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 560 transitions, 2528 flow [2024-11-28 03:21:52,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 363.1764705882353) internal successors, (12348), 34 states have internal predecessors, (12348), 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) [2024-11-28 03:21:52,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:52,413 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:52,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:52,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:21:52,614 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:52,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:52,624 INFO L85 PathProgramCache]: Analyzing trace with hash 244710102, now seen corresponding path program 2 times [2024-11-28 03:21:52,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:52,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970713304] [2024-11-28 03:21:52,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:52,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:53,163 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:53,163 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58141 trivial. 0 not checked. [2024-11-28 03:21:53,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:53,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970713304] [2024-11-28 03:21:53,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970713304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:53,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:53,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:53,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262660975] [2024-11-28 03:21:53,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:53,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:53,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:53,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:54,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 385 [2024-11-28 03:21:54,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 560 transitions, 2528 flow. Second operand has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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) [2024-11-28 03:21:54,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:54,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 385 [2024-11-28 03:21:54,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:59,781 INFO L124 PetriNetUnfolderBase]: 454/6743 cut-off events. [2024-11-28 03:21:59,782 INFO L125 PetriNetUnfolderBase]: For 2378/2470 co-relation queries the response was YES. [2024-11-28 03:21:59,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 6743 events. 454/6743 cut-off events. For 2378/2470 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21283 event pairs, 87 based on Foata normal form. 34/6546 useless extension candidates. Maximal degree in co-relation 7275. Up to 1847 conditions per place. [2024-11-28 03:21:59,804 INFO L140 encePairwiseOnDemand]: 374/385 looper letters, 108 selfloop transitions, 55 changer transitions 0/621 dead transitions. [2024-11-28 03:21:59,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 621 transitions, 3180 flow [2024-11-28 03:21:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2024-11-28 03:21:59,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8614718614718615 [2024-11-28 03:21:59,808 INFO L175 Difference]: Start difference. First operand has 520 places, 560 transitions, 2528 flow. Second operand 6 states and 1990 transitions. [2024-11-28 03:21:59,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 621 transitions, 3180 flow [2024-11-28 03:21:59,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 621 transitions, 3072 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-28 03:21:59,841 INFO L231 Difference]: Finished difference. Result has 512 places, 609 transitions, 2974 flow [2024-11-28 03:21:59,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=2420, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2974, PETRI_PLACES=512, PETRI_TRANSITIONS=609} [2024-11-28 03:21:59,842 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, 137 predicate places. [2024-11-28 03:21:59,842 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 609 transitions, 2974 flow [2024-11-28 03:21:59,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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) [2024-11-28 03:21:59,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:59,844 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:59,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:21:59,845 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:21:59,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:59,855 INFO L85 PathProgramCache]: Analyzing trace with hash 480581801, now seen corresponding path program 1 times [2024-11-28 03:21:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:59,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059709209] [2024-11-28 03:21:59,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:59,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 29756 proven. 13875 refuted. 0 times theorem prover too weak. 14510 trivial. 0 not checked. [2024-11-28 03:22:14,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059709209] [2024-11-28 03:22:14,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059709209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42789116] [2024-11-28 03:22:14,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:14,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:14,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:14,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:14,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e11ac8-ef4a-4946-9546-f99cb17fecd2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:22:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:17,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 11584 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 03:22:17,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 29756 proven. 13875 refuted. 0 times theorem prover too weak. 14510 trivial. 0 not checked. [2024-11-28 03:22:19,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 29756 proven. 13875 refuted. 0 times theorem prover too weak. 14510 trivial. 0 not checked. [2024-11-28 03:22:21,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42789116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:21,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:21,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-28 03:22:21,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956859076] [2024-11-28 03:22:21,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:21,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-28 03:22:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:21,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-28 03:22:21,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 03:22:22,033 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 385 [2024-11-28 03:22:22,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 609 transitions, 2974 flow. Second operand has 63 states, 63 states have (on average 363.14285714285717) internal successors, (22878), 63 states have internal predecessors, (22878), 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) [2024-11-28 03:22:22,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:22:22,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 385 [2024-11-28 03:22:22,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:22:30,773 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([790] L1039-4-->L1044-2: Formula: (and (= |v_fThread1of1ForFork1_#t~ret20#1_1| 0) (= |v_#pthreadsMutex_11| (store |v_#pthreadsMutex_12| |v_~#c~0.base_89| (store (select |v_#pthreadsMutex_12| |v_~#c~0.base_89|) (+ (* |v_fThread1of1ForFork1_~j~0#1_29| 24) |v_~#c~0.offset_89| 80) 0)))) InVars {~#c~0.base=|v_~#c~0.base_89|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_12|, ~#c~0.offset=|v_~#c~0.offset_89|} OutVars{~#c~0.base=|v_~#c~0.base_89|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_11|, fThread1of1ForFork1_#t~ret20#1=|v_fThread1of1ForFork1_#t~ret20#1_1|, ~#c~0.offset=|v_~#c~0.offset_89|} AuxVars[] AssignedVars[#pthreadsMutex, fThread1of1ForFork1_#t~ret20#1][540], [Black: 394#(= |ULTIMATE.start_main_~i~0#1| 0), 4591#true, 1891#true, 13400#true, Black: 404#(= |ULTIMATE.start_main_~j~1#1| 0), 378#true, 175#L1044-2true, 436#true, Black: 11363#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 4618#(<= |ULTIMATE.start_main_~j~1#1| 7), Black: 11635#(< |ULTIMATE.start_main_~j~1#1| 27), 376#true, Black: 11080#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 11907#(< |ULTIMATE.start_main_~j~1#1| 26), Black: 12451#(< |ULTIMATE.start_main_~j~1#1| 24), Black: 12179#(< |ULTIMATE.start_main_~j~1#1| 25), Black: 11091#(< |ULTIMATE.start_main_~j~1#1| 29), 263#ULTIMATE.startFINALtrue, Black: 13391#(= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0), Black: 13393#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 2 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), Black: 13394#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 2 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 3 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), Black: 13392#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), 4602#true, Black: 3315#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 440#(<= |ULTIMATE.start_main_~j~1#1| 1), Black: 4502#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 28)), Black: 4508#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 29)), 13389#true, Black: 1268#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 1906#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 3598#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 3062#(<= |ULTIMATE.start_main_~j~1#1| 3), Black: 4512#(and (= 0 |ULTIMATE.start_main_#t~post25#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4496#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 27)), Black: 4538#(and (<= |ULTIMATE.start_main_~j~1#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 3326#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 1904#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 1894#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 4544#(and (<= |ULTIMATE.start_main_~j~1#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4490#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 3)), Black: 1895#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 71#L1044-2true, Black: 1893#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), Black: 4532#(and (<= |ULTIMATE.start_main_~j~1#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 1896#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 4550#(and (<= |ULTIMATE.start_main_~j~1#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4594#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), 1902#true, Black: 4593#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0), Black: 4596#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= 0 (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))))), Black: 4595#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0))]) [2024-11-28 03:22:30,774 INFO L294 olderBase$Statistics]: this new event has 5677 ancestors and is cut-off event [2024-11-28 03:22:30,774 INFO L297 olderBase$Statistics]: existing Event has 5650 ancestors and is cut-off event [2024-11-28 03:22:30,774 INFO L297 olderBase$Statistics]: existing Event has 5650 ancestors and is cut-off event [2024-11-28 03:22:30,774 INFO L297 olderBase$Statistics]: existing Event has 5650 ancestors and is cut-off event