./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.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_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/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_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/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_53a8d0dc-cb61-493b-825c-6cb0c659888e/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 e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:42:42,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:42:42,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:42:42,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:42:42,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:42:42,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:42:42,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:42:42,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:42:42,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:42:42,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:42:42,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:42:42,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:42:42,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:42:42,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:42:42,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:42:42,775 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:42,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:42:42,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:42,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:42,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:42,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:42:42,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:42:42,777 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:42:42,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:42:42,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:42:42,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:42:42,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:42:42,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:42:42,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:42:42,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:42:42,779 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_53a8d0dc-cb61-493b-825c-6cb0c659888e/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 -> e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a [2024-11-28 03:42:43,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:42:43,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:42:43,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:42:43,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:42:43,171 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:42:43,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2024-11-28 03:42:46,608 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/data/9e9f695ab/b368f253fb6e4890be94ea62f64c949d/FLAGeb721322b [2024-11-28 03:42:46,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:42:46,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2024-11-28 03:42:47,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/data/9e9f695ab/b368f253fb6e4890be94ea62f64c949d/FLAGeb721322b [2024-11-28 03:42:47,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/data/9e9f695ab/b368f253fb6e4890be94ea62f64c949d [2024-11-28 03:42:47,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:42:47,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:42:47,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:47,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:42:47,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:42:47,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:47" (1/1) ... [2024-11-28 03:42:47,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c47da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:47, skipping insertion in model container [2024-11-28 03:42:47,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:47" (1/1) ... [2024-11-28 03:42:47,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:42:47,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:47,850 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:42:47,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:48,032 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:42:48,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48 WrapperNode [2024-11-28 03:42:48,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:48,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:48,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:42:48,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:42:48,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,151 INFO L138 Inliner]: procedures = 372, calls = 87, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 296 [2024-11-28 03:42:48,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:48,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:42:48,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:42:48,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:42:48,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,212 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:42:48,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:42:48,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:42:48,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:42:48,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:48,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:48,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:42:48,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:42:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 03:42:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 03:42:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:42:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 03:42:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:42:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:42:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:42:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:42:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:42:48,325 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 03:42:48,577 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:42:48,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:42:49,572 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:42:49,573 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:42:49,633 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:42:49,637 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:42:49,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:49 BoogieIcfgContainer [2024-11-28 03:42:49,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:42:49,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:42:49,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:42:49,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:42:49,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:42:47" (1/3) ... [2024-11-28 03:42:49,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc8c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:49, skipping insertion in model container [2024-11-28 03:42:49,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48" (2/3) ... [2024-11-28 03:42:49,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc8c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:49, skipping insertion in model container [2024-11-28 03:42:49,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:49" (3/3) ... [2024-11-28 03:42:49,652 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_19-nested_nr.i [2024-11-28 03:42:49,671 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:42:49,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_19-nested_nr.i that has 2 procedures, 334 locations, 1 initial locations, 2 loop locations, and 18 error locations. [2024-11-28 03:42:49,673 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:42:49,867 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:42:49,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 339 transitions, 682 flow [2024-11-28 03:42:50,154 INFO L124 PetriNetUnfolderBase]: 6/338 cut-off events. [2024-11-28 03:42:50,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:42:50,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 338 events. 6/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 401 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 210. Up to 2 conditions per place. [2024-11-28 03:42:50,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 337 places, 339 transitions, 682 flow [2024-11-28 03:42:50,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 338 transitions, 679 flow [2024-11-28 03:42:50,198 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:42:50,218 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;@71982220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:42:50,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-28 03:42:50,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:42:50,265 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2024-11-28 03:42:50,266 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:42:50,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:50,268 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] [2024-11-28 03:42:50,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:50,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1966983680, now seen corresponding path program 1 times [2024-11-28 03:42:50,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:50,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75333153] [2024-11-28 03:42:50,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:50,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:50,928 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 03:42:50,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75333153] [2024-11-28 03:42:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75333153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:50,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:50,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:42:50,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429458481] [2024-11-28 03:42:50,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:50,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:42:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:50,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:42:50,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:51,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 339 [2024-11-28 03:42:51,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 338 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 03:42:51,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:51,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 339 [2024-11-28 03:42:51,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:51,195 INFO L124 PetriNetUnfolderBase]: 8/414 cut-off events. [2024-11-28 03:42:51,195 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:42:51,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 414 events. 8/414 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 871 event pairs, 6 based on Foata normal form. 6/389 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-11-28 03:42:51,201 INFO L140 encePairwiseOnDemand]: 332/339 looper letters, 10 selfloop transitions, 2 changer transitions 1/335 dead transitions. [2024-11-28 03:42:51,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 335 transitions, 697 flow [2024-11-28 03:42:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:42:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:42:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2024-11-28 03:42:51,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9734513274336283 [2024-11-28 03:42:51,234 INFO L175 Difference]: Start difference. First operand has 336 places, 338 transitions, 679 flow. Second operand 3 states and 990 transitions. [2024-11-28 03:42:51,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 335 transitions, 697 flow [2024-11-28 03:42:51,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 335 transitions, 696 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:42:51,257 INFO L231 Difference]: Finished difference. Result has 338 places, 334 transitions, 680 flow [2024-11-28 03:42:51,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=338, PETRI_TRANSITIONS=334} [2024-11-28 03:42:51,266 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 2 predicate places. [2024-11-28 03:42:51,269 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 334 transitions, 680 flow [2024-11-28 03:42:51,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 03:42:51,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:51,270 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] [2024-11-28 03:42:51,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:42:51,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:51,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1140629547, now seen corresponding path program 1 times [2024-11-28 03:42:51,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:51,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610135808] [2024-11-28 03:42:51,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:51,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610135808] [2024-11-28 03:42:51,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610135808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:42:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894154570] [2024-11-28 03:42:51,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:51,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:51,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:42:51,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:42:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:51,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:42:51,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:42:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:52,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:42:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894154570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:42:52,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:42:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:42:52,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941418379] [2024-11-28 03:42:52,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:42:52,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:42:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:52,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:42:52,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:42:52,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:42:52,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 334 transitions, 680 flow. Second operand has 10 states, 10 states have (on average 322.8) internal successors, (3228), 10 states have internal predecessors, (3228), 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 03:42:52,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:52,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:42:52,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:52,473 INFO L124 PetriNetUnfolderBase]: 8/420 cut-off events. [2024-11-28 03:42:52,474 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:42:52,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 420 events. 8/420 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 864 event pairs, 6 based on Foata normal form. 2/392 useless extension candidates. Maximal degree in co-relation 384. Up to 24 conditions per place. [2024-11-28 03:42:52,477 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 14 selfloop transitions, 9 changer transitions 0/342 dead transitions. [2024-11-28 03:42:52,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 342 transitions, 744 flow [2024-11-28 03:42:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:42:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:42:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2914 transitions. [2024-11-28 03:42:52,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.955096689609964 [2024-11-28 03:42:52,493 INFO L175 Difference]: Start difference. First operand has 338 places, 334 transitions, 680 flow. Second operand 9 states and 2914 transitions. [2024-11-28 03:42:52,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 342 transitions, 744 flow [2024-11-28 03:42:52,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 342 transitions, 742 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:42:52,505 INFO L231 Difference]: Finished difference. Result has 347 places, 340 transitions, 728 flow [2024-11-28 03:42:52,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=728, PETRI_PLACES=347, PETRI_TRANSITIONS=340} [2024-11-28 03:42:52,509 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 11 predicate places. [2024-11-28 03:42:52,509 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 340 transitions, 728 flow [2024-11-28 03:42:52,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 322.8) internal successors, (3228), 10 states have internal predecessors, (3228), 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 03:42:52,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:52,513 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:52,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:42:52,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:52,718 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:52,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash -389859659, now seen corresponding path program 2 times [2024-11-28 03:42:52,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:52,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063859713] [2024-11-28 03:42:52,722 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:42:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:52,790 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:42:52,790 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:42:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:42:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:53,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063859713] [2024-11-28 03:42:53,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063859713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:53,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:53,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:42:53,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782200974] [2024-11-28 03:42:53,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:53,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:42:53,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:53,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:42:53,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:42:54,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 339 [2024-11-28 03:42:54,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 340 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 03:42:54,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:54,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 339 [2024-11-28 03:42:54,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:55,272 INFO L124 PetriNetUnfolderBase]: 366/1704 cut-off events. [2024-11-28 03:42:55,273 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:42:55,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2546 conditions, 1704 events. 366/1704 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10122 event pairs, 364 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 2435. Up to 800 conditions per place. [2024-11-28 03:42:55,291 INFO L140 encePairwiseOnDemand]: 327/339 looper letters, 71 selfloop transitions, 10 changer transitions 0/338 dead transitions. [2024-11-28 03:42:55,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 338 transitions, 886 flow [2024-11-28 03:42:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:42:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:42:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1595 transitions. [2024-11-28 03:42:55,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7841691248770895 [2024-11-28 03:42:55,303 INFO L175 Difference]: Start difference. First operand has 347 places, 340 transitions, 728 flow. Second operand 6 states and 1595 transitions. [2024-11-28 03:42:55,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 338 transitions, 886 flow [2024-11-28 03:42:55,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 338 transitions, 880 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:42:55,315 INFO L231 Difference]: Finished difference. Result has 349 places, 338 transitions, 738 flow [2024-11-28 03:42:55,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=349, PETRI_TRANSITIONS=338} [2024-11-28 03:42:55,317 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 13 predicate places. [2024-11-28 03:42:55,318 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 338 transitions, 738 flow [2024-11-28 03:42:55,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 03:42:55,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:55,319 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:55,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:42:55,320 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:55,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1173468044, now seen corresponding path program 1 times [2024-11-28 03:42:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:55,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398027228] [2024-11-28 03:42:55,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:42:55,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:55,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398027228] [2024-11-28 03:42:55,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398027228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:55,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:55,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:42:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823830202] [2024-11-28 03:42:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:55,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:42:55,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:55,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:42:55,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:55,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 339 [2024-11-28 03:42:55,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 338 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 03:42:55,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:55,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 339 [2024-11-28 03:42:55,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:55,683 INFO L124 PetriNetUnfolderBase]: 8/529 cut-off events. [2024-11-28 03:42:55,683 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:42:55,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 529 events. 8/529 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 857 event pairs, 6 based on Foata normal form. 1/496 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2024-11-28 03:42:55,685 INFO L140 encePairwiseOnDemand]: 336/339 looper letters, 10 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2024-11-28 03:42:55,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 339 transitions, 764 flow [2024-11-28 03:42:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:42:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:42:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2024-11-28 03:42:55,689 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9685349065880039 [2024-11-28 03:42:55,689 INFO L175 Difference]: Start difference. First operand has 349 places, 338 transitions, 738 flow. Second operand 3 states and 985 transitions. [2024-11-28 03:42:55,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 339 transitions, 764 flow [2024-11-28 03:42:55,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 339 transitions, 744 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:42:55,697 INFO L231 Difference]: Finished difference. Result has 347 places, 339 transitions, 730 flow [2024-11-28 03:42:55,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=347, PETRI_TRANSITIONS=339} [2024-11-28 03:42:55,699 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 11 predicate places. [2024-11-28 03:42:55,699 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 339 transitions, 730 flow [2024-11-28 03:42:55,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 03:42:55,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:55,700 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:55,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:42:55,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:55,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1360199826, now seen corresponding path program 1 times [2024-11-28 03:42:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:55,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097180984] [2024-11-28 03:42:55,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:56,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:56,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097180984] [2024-11-28 03:42:56,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097180984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:42:56,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336620257] [2024-11-28 03:42:56,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:56,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:56,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:56,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:42:56,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:42:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:56,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:42:56,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:42:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:56,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:42:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336620257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:42:56,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:42:56,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:42:56,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773775037] [2024-11-28 03:42:56,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:42:56,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:42:56,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:56,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:42:56,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:42:56,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:42:56,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 339 transitions, 730 flow. Second operand has 18 states, 18 states have (on average 322.8888888888889) internal successors, (5812), 18 states have internal predecessors, (5812), 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 03:42:56,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:56,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:42:56,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:56,969 INFO L124 PetriNetUnfolderBase]: 8/549 cut-off events. [2024-11-28 03:42:56,969 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-28 03:42:56,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 549 events. 8/549 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 858 event pairs, 6 based on Foata normal form. 4/519 useless extension candidates. Maximal degree in co-relation 476. Up to 24 conditions per place. [2024-11-28 03:42:56,972 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 18 selfloop transitions, 21 changer transitions 0/357 dead transitions. [2024-11-28 03:42:56,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 357 transitions, 896 flow [2024-11-28 03:42:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:42:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:42:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6784 transitions. [2024-11-28 03:42:56,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9529428290490237 [2024-11-28 03:42:56,989 INFO L175 Difference]: Start difference. First operand has 347 places, 339 transitions, 730 flow. Second operand 21 states and 6784 transitions. [2024-11-28 03:42:56,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 357 transitions, 896 flow [2024-11-28 03:42:56,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 357 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:42:56,999 INFO L231 Difference]: Finished difference. Result has 371 places, 352 transitions, 858 flow [2024-11-28 03:42:57,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=858, PETRI_PLACES=371, PETRI_TRANSITIONS=352} [2024-11-28 03:42:57,001 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 35 predicate places. [2024-11-28 03:42:57,001 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 352 transitions, 858 flow [2024-11-28 03:42:57,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 322.8888888888889) internal successors, (5812), 18 states have internal predecessors, (5812), 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 03:42:57,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:57,006 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:57,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:42:57,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:57,207 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:57,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1711908434, now seen corresponding path program 2 times [2024-11-28 03:42:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:57,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615155707] [2024-11-28 03:42:57,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:42:57,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:57,245 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:42:57,246 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:42:57,931 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:42:57,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:57,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615155707] [2024-11-28 03:42:57,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615155707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:57,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:57,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:42:57,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887280284] [2024-11-28 03:42:57,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:57,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:42:57,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:57,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:42:57,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:42:58,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 339 [2024-11-28 03:42:58,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 352 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 03:42:58,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:42:58,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 339 [2024-11-28 03:42:58,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:42:59,470 INFO L124 PetriNetUnfolderBase]: 366/1831 cut-off events. [2024-11-28 03:42:59,470 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-28 03:42:59,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 1831 events. 366/1831 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10123 event pairs, 364 based on Foata normal form. 0/1703 useless extension candidates. Maximal degree in co-relation 2590. Up to 830 conditions per place. [2024-11-28 03:42:59,485 INFO L140 encePairwiseOnDemand]: 327/339 looper letters, 71 selfloop transitions, 10 changer transitions 0/350 dead transitions. [2024-11-28 03:42:59,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 350 transitions, 1016 flow [2024-11-28 03:42:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:42:59,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:42:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1595 transitions. [2024-11-28 03:42:59,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7841691248770895 [2024-11-28 03:42:59,492 INFO L175 Difference]: Start difference. First operand has 371 places, 352 transitions, 858 flow. Second operand 6 states and 1595 transitions. [2024-11-28 03:42:59,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 350 transitions, 1016 flow [2024-11-28 03:42:59,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 350 transitions, 992 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:42:59,505 INFO L231 Difference]: Finished difference. Result has 368 places, 350 transitions, 850 flow [2024-11-28 03:42:59,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=368, PETRI_TRANSITIONS=350} [2024-11-28 03:42:59,506 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 32 predicate places. [2024-11-28 03:42:59,506 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 350 transitions, 850 flow [2024-11-28 03:42:59,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 03:42:59,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:42:59,508 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:59,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:42:59,508 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:42:59,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1259178982, now seen corresponding path program 1 times [2024-11-28 03:42:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144241680] [2024-11-28 03:42:59,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:59,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:43:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144241680] [2024-11-28 03:43:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144241680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:43:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749234891] [2024-11-28 03:43:00,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:00,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:00,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:00,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:43:00,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:43:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:00,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:43:00,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:43:00,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:43:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:43:00,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749234891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:43:00,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:43:00,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:43:00,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197245427] [2024-11-28 03:43:00,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:43:00,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:43:00,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:00,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:43:00,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:43:00,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:43:00,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 350 transitions, 850 flow. Second operand has 23 states, 23 states have (on average 323.0) internal successors, (7429), 23 states have internal predecessors, (7429), 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 03:43:00,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:00,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:43:00,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:01,480 INFO L124 PetriNetUnfolderBase]: 8/560 cut-off events. [2024-11-28 03:43:01,480 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-28 03:43:01,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 560 events. 8/560 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 848 event pairs, 6 based on Foata normal form. 3/533 useless extension candidates. Maximal degree in co-relation 498. Up to 24 conditions per place. [2024-11-28 03:43:01,483 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 21 selfloop transitions, 30 changer transitions 0/367 dead transitions. [2024-11-28 03:43:01,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 367 transitions, 1074 flow [2024-11-28 03:43:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:43:01,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 03:43:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9684 transitions. [2024-11-28 03:43:01,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.952212389380531 [2024-11-28 03:43:01,506 INFO L175 Difference]: Start difference. First operand has 368 places, 350 transitions, 850 flow. Second operand 30 states and 9684 transitions. [2024-11-28 03:43:01,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 367 transitions, 1074 flow [2024-11-28 03:43:01,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 367 transitions, 1054 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:01,518 INFO L231 Difference]: Finished difference. Result has 396 places, 360 transitions, 982 flow [2024-11-28 03:43:01,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=982, PETRI_PLACES=396, PETRI_TRANSITIONS=360} [2024-11-28 03:43:01,520 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 60 predicate places. [2024-11-28 03:43:01,520 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 360 transitions, 982 flow [2024-11-28 03:43:01,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 323.0) internal successors, (7429), 23 states have internal predecessors, (7429), 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 03:43:01,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:01,525 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:01,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:43:01,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:01,729 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:01,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1238622267, now seen corresponding path program 2 times [2024-11-28 03:43:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971628161] [2024-11-28 03:43:01,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:43:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:01,801 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:43:01,802 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:43:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:43:02,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:02,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971628161] [2024-11-28 03:43:02,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971628161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:02,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:02,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:02,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220585189] [2024-11-28 03:43:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:02,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:02,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:02,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:02,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:03,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 339 [2024-11-28 03:43:03,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 360 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 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 03:43:03,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:03,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 339 [2024-11-28 03:43:03,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:03,994 INFO L124 PetriNetUnfolderBase]: 392/1933 cut-off events. [2024-11-28 03:43:03,994 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-28 03:43:03,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 1933 events. 392/1933 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10830 event pairs, 390 based on Foata normal form. 0/1802 useless extension candidates. Maximal degree in co-relation 2740. Up to 899 conditions per place. [2024-11-28 03:43:04,006 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 83 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2024-11-28 03:43:04,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 359 transitions, 1156 flow [2024-11-28 03:43:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1570 transitions. [2024-11-28 03:43:04,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7718780727630286 [2024-11-28 03:43:04,012 INFO L175 Difference]: Start difference. First operand has 396 places, 360 transitions, 982 flow. Second operand 6 states and 1570 transitions. [2024-11-28 03:43:04,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 359 transitions, 1156 flow [2024-11-28 03:43:04,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 359 transitions, 1110 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 03:43:04,022 INFO L231 Difference]: Finished difference. Result has 382 places, 359 transitions, 944 flow [2024-11-28 03:43:04,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=944, PETRI_PLACES=382, PETRI_TRANSITIONS=359} [2024-11-28 03:43:04,023 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 46 predicate places. [2024-11-28 03:43:04,023 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 359 transitions, 944 flow [2024-11-28 03:43:04,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 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 03:43:04,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:04,025 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:04,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:43:04,025 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:04,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1996254562, now seen corresponding path program 1 times [2024-11-28 03:43:04,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:04,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152256153] [2024-11-28 03:43:04,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:43:05,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:05,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152256153] [2024-11-28 03:43:05,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152256153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:05,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:05,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559167918] [2024-11-28 03:43:05,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:05,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:05,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:05,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:06,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 339 [2024-11-28 03:43:06,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 359 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 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 03:43:06,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:06,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 339 [2024-11-28 03:43:06,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:06,692 INFO L124 PetriNetUnfolderBase]: 56/799 cut-off events. [2024-11-28 03:43:06,692 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-28 03:43:06,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 799 events. 56/799 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2608 event pairs, 54 based on Foata normal form. 0/747 useless extension candidates. Maximal degree in co-relation 911. Up to 195 conditions per place. [2024-11-28 03:43:06,697 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 57 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2024-11-28 03:43:06,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 358 transitions, 1066 flow [2024-11-28 03:43:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1700 transitions. [2024-11-28 03:43:06,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8357915437561455 [2024-11-28 03:43:06,703 INFO L175 Difference]: Start difference. First operand has 382 places, 359 transitions, 944 flow. Second operand 6 states and 1700 transitions. [2024-11-28 03:43:06,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 358 transitions, 1066 flow [2024-11-28 03:43:06,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 358 transitions, 1056 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:06,717 INFO L231 Difference]: Finished difference. Result has 381 places, 358 transitions, 942 flow [2024-11-28 03:43:06,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=381, PETRI_TRANSITIONS=358} [2024-11-28 03:43:06,718 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 45 predicate places. [2024-11-28 03:43:06,718 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 358 transitions, 942 flow [2024-11-28 03:43:06,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 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 03:43:06,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:06,720 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:06,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:43:06,720 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:06,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1743120430, now seen corresponding path program 1 times [2024-11-28 03:43:06,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:06,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921680061] [2024-11-28 03:43:06,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:06,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:07,689 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:43:07,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:07,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921680061] [2024-11-28 03:43:07,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921680061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:07,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:07,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:07,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388946401] [2024-11-28 03:43:07,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:07,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:07,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:07,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:08,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 339 [2024-11-28 03:43:08,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 358 transitions, 942 flow. Second operand has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 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 03:43:08,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:08,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 339 [2024-11-28 03:43:08,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:08,678 INFO L124 PetriNetUnfolderBase]: 38/714 cut-off events. [2024-11-28 03:43:08,678 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-28 03:43:08,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 714 events. 38/714 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2094 event pairs, 36 based on Foata normal form. 0/675 useless extension candidates. Maximal degree in co-relation 791. Up to 158 conditions per place. [2024-11-28 03:43:08,682 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 53 selfloop transitions, 5 changer transitions 0/357 dead transitions. [2024-11-28 03:43:08,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 357 transitions, 1056 flow [2024-11-28 03:43:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:08,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1715 transitions. [2024-11-28 03:43:08,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8431661750245821 [2024-11-28 03:43:08,687 INFO L175 Difference]: Start difference. First operand has 381 places, 358 transitions, 942 flow. Second operand 6 states and 1715 transitions. [2024-11-28 03:43:08,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 357 transitions, 1056 flow [2024-11-28 03:43:08,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 357 transitions, 1046 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:08,697 INFO L231 Difference]: Finished difference. Result has 380 places, 357 transitions, 940 flow [2024-11-28 03:43:08,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=940, PETRI_PLACES=380, PETRI_TRANSITIONS=357} [2024-11-28 03:43:08,698 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 44 predicate places. [2024-11-28 03:43:08,698 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 357 transitions, 940 flow [2024-11-28 03:43:08,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 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 03:43:08,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:08,700 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:08,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:43:08,700 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:08,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1035063238, now seen corresponding path program 1 times [2024-11-28 03:43:08,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290663864] [2024-11-28 03:43:08,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:43:09,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:09,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290663864] [2024-11-28 03:43:09,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290663864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:09,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:09,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76390797] [2024-11-28 03:43:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:09,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:09,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:09,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:09,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:10,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 339 [2024-11-28 03:43:10,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 357 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 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 03:43:10,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:10,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 339 [2024-11-28 03:43:10,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:10,592 INFO L124 PetriNetUnfolderBase]: 366/1838 cut-off events. [2024-11-28 03:43:10,593 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-28 03:43:10,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1838 events. 366/1838 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10082 event pairs, 364 based on Foata normal form. 0/1718 useless extension candidates. Maximal degree in co-relation 2603. Up to 846 conditions per place. [2024-11-28 03:43:10,601 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 79 selfloop transitions, 5 changer transitions 0/356 dead transitions. [2024-11-28 03:43:10,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 356 transitions, 1106 flow [2024-11-28 03:43:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1585 transitions. [2024-11-28 03:43:10,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7792527040314651 [2024-11-28 03:43:10,607 INFO L175 Difference]: Start difference. First operand has 380 places, 357 transitions, 940 flow. Second operand 6 states and 1585 transitions. [2024-11-28 03:43:10,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 356 transitions, 1106 flow [2024-11-28 03:43:10,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 356 transitions, 1096 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:10,616 INFO L231 Difference]: Finished difference. Result has 379 places, 356 transitions, 938 flow [2024-11-28 03:43:10,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=379, PETRI_TRANSITIONS=356} [2024-11-28 03:43:10,617 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 43 predicate places. [2024-11-28 03:43:10,618 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 356 transitions, 938 flow [2024-11-28 03:43:10,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 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 03:43:10,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:10,620 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:10,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:43:10,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:10,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:10,622 INFO L85 PathProgramCache]: Analyzing trace with hash 930047366, now seen corresponding path program 1 times [2024-11-28 03:43:10,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:10,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200499713] [2024-11-28 03:43:10,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:10,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-28 03:43:11,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200499713] [2024-11-28 03:43:11,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200499713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:11,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:11,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:11,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175133294] [2024-11-28 03:43:11,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:11,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:11,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:11,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:11,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:12,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 339 [2024-11-28 03:43:12,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 356 transitions, 938 flow. Second operand has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 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 03:43:12,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:12,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 339 [2024-11-28 03:43:12,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:12,576 INFO L124 PetriNetUnfolderBase]: 366/1836 cut-off events. [2024-11-28 03:43:12,577 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-28 03:43:12,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2846 conditions, 1836 events. 366/1836 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10065 event pairs, 364 based on Foata normal form. 0/1718 useless extension candidates. Maximal degree in co-relation 2599. Up to 844 conditions per place. [2024-11-28 03:43:12,588 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 78 selfloop transitions, 5 changer transitions 0/355 dead transitions. [2024-11-28 03:43:12,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 355 transitions, 1102 flow [2024-11-28 03:43:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1590 transitions. [2024-11-28 03:43:12,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7817109144542773 [2024-11-28 03:43:12,591 INFO L175 Difference]: Start difference. First operand has 379 places, 356 transitions, 938 flow. Second operand 6 states and 1590 transitions. [2024-11-28 03:43:12,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 355 transitions, 1102 flow [2024-11-28 03:43:12,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 355 transitions, 1092 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:12,601 INFO L231 Difference]: Finished difference. Result has 378 places, 355 transitions, 936 flow [2024-11-28 03:43:12,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=936, PETRI_PLACES=378, PETRI_TRANSITIONS=355} [2024-11-28 03:43:12,605 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 42 predicate places. [2024-11-28 03:43:12,605 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 355 transitions, 936 flow [2024-11-28 03:43:12,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 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 03:43:12,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:12,607 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:12,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:43:12,607 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:12,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1049834861, now seen corresponding path program 1 times [2024-11-28 03:43:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:12,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531562569] [2024-11-28 03:43:12,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:12,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 03:43:12,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:12,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531562569] [2024-11-28 03:43:12,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531562569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:43:12,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333870389] [2024-11-28 03:43:12,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:12,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:12,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:43:12,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:43:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:13,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:43:13,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 03:43:13,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:43:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 03:43:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333870389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:43:13,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:43:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:43:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376446566] [2024-11-28 03:43:13,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:43:13,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:43:13,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:13,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:43:13,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:43:13,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:43:13,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 355 transitions, 936 flow. Second operand has 10 states, 10 states have (on average 323.0) internal successors, (3230), 10 states have internal predecessors, (3230), 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 03:43:13,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:13,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:43:13,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:14,119 INFO L124 PetriNetUnfolderBase]: 8/657 cut-off events. [2024-11-28 03:43:14,119 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-28 03:43:14,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 657 events. 8/657 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 388 event pairs, 6 based on Foata normal form. 2/639 useless extension candidates. Maximal degree in co-relation 607. Up to 24 conditions per place. [2024-11-28 03:43:14,122 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 14 selfloop transitions, 9 changer transitions 0/363 dead transitions. [2024-11-28 03:43:14,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 363 transitions, 1000 flow [2024-11-28 03:43:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:43:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:43:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2914 transitions. [2024-11-28 03:43:14,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.955096689609964 [2024-11-28 03:43:14,128 INFO L175 Difference]: Start difference. First operand has 378 places, 355 transitions, 936 flow. Second operand 9 states and 2914 transitions. [2024-11-28 03:43:14,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 363 transitions, 1000 flow [2024-11-28 03:43:14,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 363 transitions, 990 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:43:14,138 INFO L231 Difference]: Finished difference. Result has 384 places, 361 transitions, 976 flow [2024-11-28 03:43:14,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=976, PETRI_PLACES=384, PETRI_TRANSITIONS=361} [2024-11-28 03:43:14,141 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 48 predicate places. [2024-11-28 03:43:14,141 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 361 transitions, 976 flow [2024-11-28 03:43:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 323.0) internal successors, (3230), 10 states have internal predecessors, (3230), 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 03:43:14,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:14,147 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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] [2024-11-28 03:43:14,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:43:14,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:43:14,348 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:14,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:14,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1505707181, now seen corresponding path program 2 times [2024-11-28 03:43:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519886010] [2024-11-28 03:43:14,350 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:43:14,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:14,454 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:43:14,454 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:43:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2024-11-28 03:43:14,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519886010] [2024-11-28 03:43:14,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519886010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:14,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:14,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:14,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069983021] [2024-11-28 03:43:14,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:14,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:14,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:14,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:14,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:16,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 339 [2024-11-28 03:43:16,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 361 transitions, 976 flow. Second operand has 6 states, 6 states have (on average 282.3333333333333) internal successors, (1694), 6 states have internal predecessors, (1694), 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 03:43:16,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:16,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 339 [2024-11-28 03:43:16,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:16,956 INFO L124 PetriNetUnfolderBase]: 258/1984 cut-off events. [2024-11-28 03:43:16,956 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-28 03:43:16,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1984 events. 258/1984 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10175 event pairs, 36 based on Foata normal form. 0/1858 useless extension candidates. Maximal degree in co-relation 2536. Up to 491 conditions per place. [2024-11-28 03:43:16,968 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 67 selfloop transitions, 70 changer transitions 0/439 dead transitions. [2024-11-28 03:43:16,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 439 transitions, 1406 flow [2024-11-28 03:43:16,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1794 transitions. [2024-11-28 03:43:16,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8820058997050148 [2024-11-28 03:43:16,971 INFO L175 Difference]: Start difference. First operand has 384 places, 361 transitions, 976 flow. Second operand 6 states and 1794 transitions. [2024-11-28 03:43:16,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 439 transitions, 1406 flow [2024-11-28 03:43:16,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 439 transitions, 1400 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:43:16,983 INFO L231 Difference]: Finished difference. Result has 393 places, 430 transitions, 1432 flow [2024-11-28 03:43:16,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=970, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1432, PETRI_PLACES=393, PETRI_TRANSITIONS=430} [2024-11-28 03:43:16,985 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 57 predicate places. [2024-11-28 03:43:16,985 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 430 transitions, 1432 flow [2024-11-28 03:43:16,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.3333333333333) internal successors, (1694), 6 states have internal predecessors, (1694), 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 03:43:16,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:16,987 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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] [2024-11-28 03:43:16,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:43:16,987 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:16,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:16,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1536335527, now seen corresponding path program 1 times [2024-11-28 03:43:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:16,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210449955] [2024-11-28 03:43:16,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:16,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-28 03:43:17,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:17,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210449955] [2024-11-28 03:43:17,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210449955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:43:17,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425755083] [2024-11-28 03:43:17,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:17,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:17,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:17,839 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:43:17,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:43:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:18,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:43:18,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-28 03:43:19,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:43:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-28 03:43:19,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425755083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:43:19,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:43:19,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:43:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037832273] [2024-11-28 03:43:19,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:43:19,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:43:19,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:19,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:43:19,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:43:19,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:43:19,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 430 transitions, 1432 flow. Second operand has 18 states, 18 states have (on average 323.0) internal successors, (5814), 18 states have internal predecessors, (5814), 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 03:43:19,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:19,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:43:19,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:20,650 INFO L124 PetriNetUnfolderBase]: 145/2081 cut-off events. [2024-11-28 03:43:20,650 INFO L125 PetriNetUnfolderBase]: For 309/323 co-relation queries the response was YES. [2024-11-28 03:43:20,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 2081 events. 145/2081 cut-off events. For 309/323 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7429 event pairs, 23 based on Foata normal form. 4/1999 useless extension candidates. Maximal degree in co-relation 2668. Up to 207 conditions per place. [2024-11-28 03:43:20,661 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 19 selfloop transitions, 21 changer transitions 0/448 dead transitions. [2024-11-28 03:43:20,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 448 transitions, 1600 flow [2024-11-28 03:43:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:43:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:43:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6784 transitions. [2024-11-28 03:43:20,669 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9529428290490237 [2024-11-28 03:43:20,669 INFO L175 Difference]: Start difference. First operand has 393 places, 430 transitions, 1432 flow. Second operand 21 states and 6784 transitions. [2024-11-28 03:43:20,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 448 transitions, 1600 flow [2024-11-28 03:43:20,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 448 transitions, 1600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:43:20,683 INFO L231 Difference]: Finished difference. Result has 418 places, 443 transitions, 1562 flow [2024-11-28 03:43:20,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1562, PETRI_PLACES=418, PETRI_TRANSITIONS=443} [2024-11-28 03:43:20,685 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 82 predicate places. [2024-11-28 03:43:20,685 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 443 transitions, 1562 flow [2024-11-28 03:43:20,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 323.0) internal successors, (5814), 18 states have internal predecessors, (5814), 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 03:43:20,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:20,689 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:20,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:43:20,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:43:20,893 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:20,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1366289703, now seen corresponding path program 2 times [2024-11-28 03:43:20,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:20,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947940917] [2024-11-28 03:43:20,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:43:20,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:21,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:43:21,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:43:21,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3819 trivial. 0 not checked. [2024-11-28 03:43:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:21,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947940917] [2024-11-28 03:43:21,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947940917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:21,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:21,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:21,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587573416] [2024-11-28 03:43:21,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:21,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:21,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:21,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:21,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:22,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 339 [2024-11-28 03:43:22,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 443 transitions, 1562 flow. Second operand has 6 states, 6 states have (on average 282.1666666666667) internal successors, (1693), 6 states have internal predecessors, (1693), 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 03:43:22,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:22,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 339 [2024-11-28 03:43:22,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:23,633 INFO L124 PetriNetUnfolderBase]: 531/3178 cut-off events. [2024-11-28 03:43:23,633 INFO L125 PetriNetUnfolderBase]: For 957/1032 co-relation queries the response was YES. [2024-11-28 03:43:23,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5624 conditions, 3178 events. 531/3178 cut-off events. For 957/1032 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16121 event pairs, 93 based on Foata normal form. 16/3029 useless extension candidates. Maximal degree in co-relation 5364. Up to 981 conditions per place. [2024-11-28 03:43:23,652 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 131 selfloop transitions, 130 changer transitions 0/580 dead transitions. [2024-11-28 03:43:23,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 580 transitions, 2734 flow [2024-11-28 03:43:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1793 transitions. [2024-11-28 03:43:23,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8815142576204523 [2024-11-28 03:43:23,655 INFO L175 Difference]: Start difference. First operand has 418 places, 443 transitions, 1562 flow. Second operand 6 states and 1793 transitions. [2024-11-28 03:43:23,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 580 transitions, 2734 flow [2024-11-28 03:43:23,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 580 transitions, 2710 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:43:23,675 INFO L231 Difference]: Finished difference. Result has 422 places, 572 transitions, 2766 flow [2024-11-28 03:43:23,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2766, PETRI_PLACES=422, PETRI_TRANSITIONS=572} [2024-11-28 03:43:23,676 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 86 predicate places. [2024-11-28 03:43:23,676 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 572 transitions, 2766 flow [2024-11-28 03:43:23,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.1666666666667) internal successors, (1693), 6 states have internal predecessors, (1693), 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 03:43:23,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:23,678 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:23,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:43:23,678 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:23,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash -716700717, now seen corresponding path program 1 times [2024-11-28 03:43:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677054602] [2024-11-28 03:43:23,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:23,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-28 03:43:26,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:26,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677054602] [2024-11-28 03:43:26,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677054602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:43:26,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515016607] [2024-11-28 03:43:26,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:26,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:43:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:43:26,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:43:26,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:43:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:27,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:43:27,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-28 03:43:28,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:43:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-28 03:43:29,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515016607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:43:29,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:43:29,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:43:29,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585251882] [2024-11-28 03:43:29,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:43:29,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:43:29,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:29,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:43:29,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:43:30,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 339 [2024-11-28 03:43:30,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 572 transitions, 2766 flow. Second operand has 23 states, 23 states have (on average 323.0869565217391) internal successors, (7431), 23 states have internal predecessors, (7431), 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 03:43:30,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:30,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 339 [2024-11-28 03:43:30,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:31,952 INFO L124 PetriNetUnfolderBase]: 399/3169 cut-off events. [2024-11-28 03:43:31,952 INFO L125 PetriNetUnfolderBase]: For 1291/1323 co-relation queries the response was YES. [2024-11-28 03:43:31,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5499 conditions, 3169 events. 399/3169 cut-off events. For 1291/1323 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13458 event pairs, 39 based on Foata normal form. 7/3068 useless extension candidates. Maximal degree in co-relation 5234. Up to 468 conditions per place. [2024-11-28 03:43:31,966 INFO L140 encePairwiseOnDemand]: 333/339 looper letters, 22 selfloop transitions, 30 changer transitions 0/589 dead transitions. [2024-11-28 03:43:31,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 589 transitions, 2992 flow [2024-11-28 03:43:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:43:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 03:43:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9684 transitions. [2024-11-28 03:43:31,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.952212389380531 [2024-11-28 03:43:31,972 INFO L175 Difference]: Start difference. First operand has 422 places, 572 transitions, 2766 flow. Second operand 30 states and 9684 transitions. [2024-11-28 03:43:31,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 589 transitions, 2992 flow [2024-11-28 03:43:31,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 589 transitions, 2992 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:43:31,992 INFO L231 Difference]: Finished difference. Result has 455 places, 582 transitions, 2918 flow [2024-11-28 03:43:31,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=2766, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2918, PETRI_PLACES=455, PETRI_TRANSITIONS=582} [2024-11-28 03:43:31,992 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 119 predicate places. [2024-11-28 03:43:31,993 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 582 transitions, 2918 flow [2024-11-28 03:43:31,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 323.0869565217391) internal successors, (7431), 23 states have internal predecessors, (7431), 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 03:43:31,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:31,994 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:32,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:43:32,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:43:32,195 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:32,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:32,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1047106601, now seen corresponding path program 2 times [2024-11-28 03:43:32,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:32,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218314371] [2024-11-28 03:43:32,198 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:43:32,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:32,421 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:43:32,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:43:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7770 trivial. 0 not checked. [2024-11-28 03:43:32,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:32,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218314371] [2024-11-28 03:43:32,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218314371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:32,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269109008] [2024-11-28 03:43:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:32,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:32,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:32,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:32,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:33,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 339 [2024-11-28 03:43:33,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 582 transitions, 2918 flow. Second operand has 6 states, 6 states have (on average 282.3333333333333) internal successors, (1694), 6 states have internal predecessors, (1694), 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 03:43:33,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:33,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 339 [2024-11-28 03:43:33,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:35,495 INFO L124 PetriNetUnfolderBase]: 807/4259 cut-off events. [2024-11-28 03:43:35,496 INFO L125 PetriNetUnfolderBase]: For 3371/3545 co-relation queries the response was YES. [2024-11-28 03:43:35,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8971 conditions, 4259 events. 807/4259 cut-off events. For 3371/3545 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22317 event pairs, 74 based on Foata normal form. 76/4160 useless extension candidates. Maximal degree in co-relation 8702. Up to 1323 conditions per place. [2024-11-28 03:43:35,519 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 251 selfloop transitions, 131 changer transitions 5/720 dead transitions. [2024-11-28 03:43:35,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 720 transitions, 4592 flow [2024-11-28 03:43:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1794 transitions. [2024-11-28 03:43:35,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8820058997050148 [2024-11-28 03:43:35,522 INFO L175 Difference]: Start difference. First operand has 455 places, 582 transitions, 2918 flow. Second operand 6 states and 1794 transitions. [2024-11-28 03:43:35,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 720 transitions, 4592 flow [2024-11-28 03:43:35,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 720 transitions, 4546 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 03:43:35,541 INFO L231 Difference]: Finished difference. Result has 447 places, 710 transitions, 4352 flow [2024-11-28 03:43:35,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=2872, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4352, PETRI_PLACES=447, PETRI_TRANSITIONS=710} [2024-11-28 03:43:35,542 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 111 predicate places. [2024-11-28 03:43:35,543 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 710 transitions, 4352 flow [2024-11-28 03:43:35,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.3333333333333) internal successors, (1694), 6 states have internal predecessors, (1694), 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 03:43:35,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:35,544 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:35,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:43:35,544 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:35,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:35,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2116314274, now seen corresponding path program 1 times [2024-11-28 03:43:35,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:35,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950859654] [2024-11-28 03:43:35,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:35,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7770 trivial. 0 not checked. [2024-11-28 03:43:40,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:43:40,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950859654] [2024-11-28 03:43:40,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950859654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:40,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:40,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:43:40,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755272581] [2024-11-28 03:43:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:40,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:43:40,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:43:40,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:43:40,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:43:40,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 339 [2024-11-28 03:43:40,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 710 transitions, 4352 flow. Second operand has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 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 03:43:40,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:43:40,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 339 [2024-11-28 03:43:40,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:43:43,734 INFO L124 PetriNetUnfolderBase]: 1309/5603 cut-off events. [2024-11-28 03:43:43,734 INFO L125 PetriNetUnfolderBase]: For 4983/5040 co-relation queries the response was YES. [2024-11-28 03:43:43,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13619 conditions, 5603 events. 1309/5603 cut-off events. For 4983/5040 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33879 event pairs, 369 based on Foata normal form. 11/5369 useless extension candidates. Maximal degree in co-relation 13346. Up to 2549 conditions per place. [2024-11-28 03:43:43,775 INFO L140 encePairwiseOnDemand]: 320/339 looper letters, 316 selfloop transitions, 84 changer transitions 0/789 dead transitions. [2024-11-28 03:43:43,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 789 transitions, 5550 flow [2024-11-28 03:43:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:43:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:43:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1672 transitions. [2024-11-28 03:43:43,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8220255653883972 [2024-11-28 03:43:43,778 INFO L175 Difference]: Start difference. First operand has 447 places, 710 transitions, 4352 flow. Second operand 6 states and 1672 transitions. [2024-11-28 03:43:43,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 789 transitions, 5550 flow [2024-11-28 03:43:43,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 789 transitions, 5296 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-28 03:43:43,823 INFO L231 Difference]: Finished difference. Result has 456 places, 781 transitions, 4888 flow [2024-11-28 03:43:43,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=4104, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4888, PETRI_PLACES=456, PETRI_TRANSITIONS=781} [2024-11-28 03:43:43,824 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 120 predicate places. [2024-11-28 03:43:43,824 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 781 transitions, 4888 flow [2024-11-28 03:43:43,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 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 03:43:43,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:43:43,825 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:43,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:43:43,826 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:43:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1192094988, now seen corresponding path program 1 times [2024-11-28 03:43:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:43:43,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133201883] [2024-11-28 03:43:43,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:43,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:43:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 2296 proven. 4831 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2024-11-28 03:44:24,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133201883] [2024-11-28 03:44:24,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133201883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:44:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442378612] [2024-11-28 03:44:24,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:24,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:44:24,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:24,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:44:24,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:44:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:26,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 4602 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-28 03:44:26,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:27,561 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 03:44:27,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 03:44:28,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:44:28,485 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2024-11-28 03:44:28,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 03:44:28,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-28 03:44:28,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-28 03:44:29,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 03:44:30,256 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:44:30,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:44:30,799 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:44:30,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:44:31,683 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:44:31,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:44:32,103 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:44:32,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:44:33,262 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-28 03:44:33,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-28 03:44:34,213 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-11-28 03:44:34,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-11-28 03:44:35,938 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-11-28 03:44:35,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-11-28 03:44:36,917 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-11-28 03:44:36,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-11-28 03:44:39,822 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:39,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:41,200 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:41,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:43,749 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:43,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:45,045 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:45,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:47,658 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:47,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:49,097 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2024-11-28 03:44:49,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2024-11-28 03:44:51,583 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:51,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:52,933 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:52,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:55,371 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:55,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:56,746 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-28 03:44:56,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-28 03:44:59,793 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2024-11-28 03:44:59,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2024-11-28 03:44:59,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 03:45:00,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:45:00,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:45:00,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:45:00,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:45:00,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 03:45:00,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:45:00,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 55 [2024-11-28 03:45:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 4038 proven. 668 refuted. 0 times theorem prover too weak. 3064 trivial. 0 not checked. [2024-11-28 03:45:00,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:45:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 4561 proven. 0 refuted. 0 times theorem prover too weak. 3209 trivial. 0 not checked. [2024-11-28 03:45:10,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442378612] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:45:10,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:45:10,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [48, 24] total 76 [2024-11-28 03:45:10,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274921051] [2024-11-28 03:45:10,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:10,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:45:10,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:10,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:45:10,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=5118, Unknown=0, NotChecked=0, Total=5852 [2024-11-28 03:45:36,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 339 [2024-11-28 03:45:36,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 781 transitions, 4888 flow. Second operand has 14 states, 14 states have (on average 274.85714285714283) internal successors, (3848), 14 states have internal predecessors, (3848), 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 03:45:36,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:45:36,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 339 [2024-11-28 03:45:36,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:45:44,765 INFO L124 PetriNetUnfolderBase]: 1065/4967 cut-off events. [2024-11-28 03:45:44,765 INFO L125 PetriNetUnfolderBase]: For 6198/6297 co-relation queries the response was YES. [2024-11-28 03:45:44,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13131 conditions, 4967 events. 1065/4967 cut-off events. For 6198/6297 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 27999 event pairs, 88 based on Foata normal form. 59/4878 useless extension candidates. Maximal degree in co-relation 12850. Up to 899 conditions per place. [2024-11-28 03:45:44,802 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 429 selfloop transitions, 144 changer transitions 1/938 dead transitions. [2024-11-28 03:45:44,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 938 transitions, 7034 flow [2024-11-28 03:45:44,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:45:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 03:45:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5531 transitions. [2024-11-28 03:45:44,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8157817109144543 [2024-11-28 03:45:44,810 INFO L175 Difference]: Start difference. First operand has 456 places, 781 transitions, 4888 flow. Second operand 20 states and 5531 transitions. [2024-11-28 03:45:44,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 938 transitions, 7034 flow [2024-11-28 03:45:44,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 938 transitions, 6962 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-11-28 03:45:44,876 INFO L231 Difference]: Finished difference. Result has 487 places, 841 transitions, 5844 flow [2024-11-28 03:45:44,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=4834, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5844, PETRI_PLACES=487, PETRI_TRANSITIONS=841} [2024-11-28 03:45:44,878 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 151 predicate places. [2024-11-28 03:45:44,878 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 841 transitions, 5844 flow [2024-11-28 03:45:44,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 274.85714285714283) internal successors, (3848), 14 states have internal predecessors, (3848), 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 03:45:44,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:45:44,880 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:44,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:45:45,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:45:45,081 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:45:45,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:45,085 INFO L85 PathProgramCache]: Analyzing trace with hash 257230042, now seen corresponding path program 2 times [2024-11-28 03:45:45,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:45,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320349444] [2024-11-28 03:45:45,085 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:45:45,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:51,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:45:51,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:46:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 636 proven. 5066 refuted. 0 times theorem prover too weak. 2068 trivial. 0 not checked. [2024-11-28 03:46:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320349444] [2024-11-28 03:46:47,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320349444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180188004] [2024-11-28 03:46:47,742 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:46:47,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:47,745 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:46:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:46:49,920 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:46:49,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:46:49,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 4602 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-28 03:46:49,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:46:50,808 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 03:46:50,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 03:46:51,324 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:46:51,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:46:52,288 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:46:52,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:46:52,817 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 03:46:52,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 03:46:53,945 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-28 03:46:53,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-28 03:46:54,847 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-11-28 03:46:54,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-11-28 03:46:56,390 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-11-28 03:46:56,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-11-28 03:46:57,729 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-11-28 03:46:57,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2024-11-28 03:47:01,899 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:01,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:04,086 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:04,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:08,104 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:08,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:10,320 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:10,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:14,568 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:14,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:16,831 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:16,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:20,913 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:20,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:23,165 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:23,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:27,221 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:27,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:29,489 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:29,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:33,517 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:33,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:35,793 INFO L349 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2024-11-28 03:47:35,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 39 treesize of output 64 [2024-11-28 03:47:41,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 03:47:41,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:47:41,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:47:41,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:47:41,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:47:41,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 03:47:42,095 INFO L349 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2024-11-28 03:47:42,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 39 [2024-11-28 03:47:42,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-28 03:47:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 3875 proven. 152 refuted. 0 times theorem prover too weak. 3743 trivial. 0 not checked. [2024-11-28 03:47:42,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:47:42,475 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_12323 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12323) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_12323 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12323) |c_~#c~0.base|) (+ 2 |c_~#c~0.offset| .cse0)) 0)) (forall ((v_ArrVal_12323 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12323) |c_~#c~0.base|) (+ 3 |c_~#c~0.offset| .cse0)) 0)) (forall ((v_ArrVal_12323 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_12323) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse0)) 0)))) is different from false [2024-11-28 03:47:43,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:47:43,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 67 [2024-11-28 03:47:43,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:47:43,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 39 [2024-11-28 03:47:43,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-11-28 03:47:43,531 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-28 03:47:43,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-28 03:47:43,539 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-28 03:47:43,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-28 03:47:43,546 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-28 03:47:43,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 1 [2024-11-28 03:48:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 4008 proven. 0 refuted. 0 times theorem prover too weak. 3762 trivial. 0 not checked. [2024-11-28 03:48:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180188004] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:48:11,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:48:11,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [29, 16] total 55 [2024-11-28 03:48:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826146302] [2024-11-28 03:48:11,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:11,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:48:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:11,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:48:11,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2559, Unknown=27, NotChecked=106, Total=3080 [2024-11-28 03:48:11,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 339 [2024-11-28 03:48:11,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 841 transitions, 5844 flow. Second operand has 15 states, 15 states have (on average 156.53333333333333) internal successors, (2348), 15 states have internal predecessors, (2348), 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 03:48:11,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:48:11,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 339 [2024-11-28 03:48:11,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:48:45,843 INFO L124 PetriNetUnfolderBase]: 2481/7973 cut-off events. [2024-11-28 03:48:45,843 INFO L125 PetriNetUnfolderBase]: For 14481/14629 co-relation queries the response was YES. [2024-11-28 03:48:45,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24993 conditions, 7973 events. 2481/7973 cut-off events. For 14481/14629 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 52206 event pairs, 474 based on Foata normal form. 103/7767 useless extension candidates. Maximal degree in co-relation 24626. Up to 3815 conditions per place. [2024-11-28 03:48:45,909 INFO L140 encePairwiseOnDemand]: 295/339 looper letters, 645 selfloop transitions, 331 changer transitions 10/1185 dead transitions. [2024-11-28 03:48:45,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 1185 transitions, 9411 flow [2024-11-28 03:48:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:48:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:48:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2796 transitions. [2024-11-28 03:48:45,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5154867256637168 [2024-11-28 03:48:45,914 INFO L175 Difference]: Start difference. First operand has 487 places, 841 transitions, 5844 flow. Second operand 16 states and 2796 transitions. [2024-11-28 03:48:45,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 1185 transitions, 9411 flow [2024-11-28 03:48:46,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1185 transitions, 9363 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:48:46,281 INFO L231 Difference]: Finished difference. Result has 506 places, 940 transitions, 8022 flow [2024-11-28 03:48:46,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=5820, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8022, PETRI_PLACES=506, PETRI_TRANSITIONS=940} [2024-11-28 03:48:46,282 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 170 predicate places. [2024-11-28 03:48:46,282 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 940 transitions, 8022 flow [2024-11-28 03:48:46,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 156.53333333333333) internal successors, (2348), 15 states have internal predecessors, (2348), 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 03:48:46,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:48:46,284 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:46,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:48:46,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:48:46,485 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:48:46,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:46,490 INFO L85 PathProgramCache]: Analyzing trace with hash 256612212, now seen corresponding path program 3 times [2024-11-28 03:48:46,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:46,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117613836] [2024-11-28 03:48:46,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:48:46,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:54,369 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 03:48:54,369 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:50:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 572 proven. 472 refuted. 0 times theorem prover too weak. 6726 trivial. 0 not checked. [2024-11-28 03:50:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117613836] [2024-11-28 03:50:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117613836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:50:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191911405] [2024-11-28 03:50:07,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:50:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:50:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:50:07,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:50:07,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a8d0dc-cb61-493b-825c-6cb0c659888e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process