./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:11:47,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:11:47,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 02:11:47,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:11:47,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:11:48,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:11:48,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:11:48,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:11:48,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:11:48,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:11:48,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:11:48,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:11:48,008 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:11:48,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:11:48,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:11:48,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:11:48,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:11:48,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:11:48,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:11:48,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:11:48,010 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:11:48,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:11:48,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:11:48,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:11:48,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:11:48,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:11:48,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:11:48,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:11:48,012 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_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-11-24 02:11:48,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:11:48,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:11:48,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:11:48,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:11:48,399 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:11:48,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-24 02:11:51,525 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/data/ddae1c3d0/9a5b445802964ca28ea8a2092c91d3cd/FLAG8b471fd3e [2024-11-24 02:11:51,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:11:51,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-24 02:11:51,920 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/data/ddae1c3d0/9a5b445802964ca28ea8a2092c91d3cd/FLAG8b471fd3e [2024-11-24 02:11:51,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/data/ddae1c3d0/9a5b445802964ca28ea8a2092c91d3cd [2024-11-24 02:11:51,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:11:51,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:11:51,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:11:51,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:11:51,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:11:51,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:11:51" (1/1) ... [2024-11-24 02:11:51,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30676020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:51, skipping insertion in model container [2024-11-24 02:11:51,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:11:51" (1/1) ... [2024-11-24 02:11:52,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:11:52,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:11:52,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:11:52,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:11:52,759 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:11:52,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52 WrapperNode [2024-11-24 02:11:52,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:11:52,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:11:52,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:11:52,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:11:52,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,828 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-24 02:11:52,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:11:52,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:11:52,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:11:52,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:11:52,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:11:52,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:11:52,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:11:52,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:11:52,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (1/1) ... [2024-11-24 02:11:52,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:11:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:11:52,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:11:52,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:11:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 02:11:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 02:11:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 02:11:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:11:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-24 02:11:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-24 02:11:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:11:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:11:52,945 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 02:11:53,089 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:11:53,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:11:53,332 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 02:11:53,332 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:11:53,344 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:11:53,344 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:11:53,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:11:53 BoogieIcfgContainer [2024-11-24 02:11:53,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:11:53,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:11:53,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:11:53,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:11:53,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:11:51" (1/3) ... [2024-11-24 02:11:53,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1776fcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:11:53, skipping insertion in model container [2024-11-24 02:11:53,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:52" (2/3) ... [2024-11-24 02:11:53,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1776fcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:11:53, skipping insertion in model container [2024-11-24 02:11:53,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:11:53" (3/3) ... [2024-11-24 02:11:53,357 INFO L128 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-11-24 02:11:53,374 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:11:53,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG per-thread-array-init.i that has 2 procedures, 86 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-24 02:11:53,376 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 02:11:53,448 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 02:11:53,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-11-24 02:11:53,629 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-11-24 02:11:53,633 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 02:11:53,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 186 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-11-24 02:11:53,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-11-24 02:11:53,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-11-24 02:11:53,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:11:53,676 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;@106f28fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:11:53,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 02:11:53,693 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 02:11:53,694 INFO L124 PetriNetUnfolderBase]: 3/45 cut-off events. [2024-11-24 02:11:53,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 02:11:53,694 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:53,695 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] [2024-11-24 02:11:53,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:53,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 257152879, now seen corresponding path program 1 times [2024-11-24 02:11:53,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:53,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191418451] [2024-11-24 02:11:53,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:53,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:11:54,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191418451] [2024-11-24 02:11:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191418451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:54,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:54,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:54,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373952490] [2024-11-24 02:11:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:54,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:11:54,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:54,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:11:54,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:11:55,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-24 02:11:55,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:55,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:11:55,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-24 02:11:55,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:11:55,411 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-11-24 02:11:55,411 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 02:11:55,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 418 events. 91/418 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2001 event pairs, 52 based on Foata normal form. 13/396 useless extension candidates. Maximal degree in co-relation 559. Up to 197 conditions per place. [2024-11-24 02:11:55,415 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-11-24 02:11:55,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-11-24 02:11:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:11:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:11:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-24 02:11:55,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-11-24 02:11:55,432 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-11-24 02:11:55,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-11-24 02:11:55,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 02:11:55,445 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-11-24 02:11:55,448 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2024-11-24 02:11:55,454 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-11-24 02:11:55,454 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-11-24 02:11:55,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:55,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:55,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:55,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:11:55,456 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:55,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash -262606275, now seen corresponding path program 1 times [2024-11-24 02:11:55,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:55,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882975091] [2024-11-24 02:11:55,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:55,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:11:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882975091] [2024-11-24 02:11:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882975091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805251349] [2024-11-24 02:11:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:55,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:11:55,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:55,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:11:55,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:11:55,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-11-24 02:11:55,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 329 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:55,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:11:55,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-11-24 02:11:55,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:11:55,922 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-11-24 02:11:55,923 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-24 02:11:55,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 253 events. 40/253 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2024-11-24 02:11:55,927 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-11-24 02:11:55,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-11-24 02:11:55,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:11:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:11:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-11-24 02:11:55,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-11-24 02:11:55,936 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-11-24 02:11:55,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-11-24 02:11:55,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 02:11:55,944 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-11-24 02:11:55,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-11-24 02:11:55,946 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-11-24 02:11:55,946 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-11-24 02:11:55,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:55,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:55,947 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:55,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:11:55,947 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:55,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:55,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1427633885, now seen corresponding path program 1 times [2024-11-24 02:11:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:55,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717878767] [2024-11-24 02:11:55,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:55,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:11:56,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717878767] [2024-11-24 02:11:56,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717878767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:56,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:56,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051368930] [2024-11-24 02:11:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:56,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:11:56,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:56,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:11:56,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:11:56,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-24 02:11:56,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:56,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:11:56,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-24 02:11:56,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:11:56,910 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-11-24 02:11:56,910 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-11-24 02:11:56,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 469 events. 109/469 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2294 event pairs, 36 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 886. Up to 225 conditions per place. [2024-11-24 02:11:56,915 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-11-24 02:11:56,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-11-24 02:11:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:11:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:11:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-11-24 02:11:56,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-24 02:11:56,920 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-11-24 02:11:56,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-11-24 02:11:56,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-24 02:11:56,926 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-11-24 02:11:56,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2024-11-24 02:11:56,928 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-11-24 02:11:56,928 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-11-24 02:11:56,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:56,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:56,929 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] [2024-11-24 02:11:56,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:11:56,929 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1965573432, now seen corresponding path program 1 times [2024-11-24 02:11:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376970231] [2024-11-24 02:11:56,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:11:57,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:57,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376970231] [2024-11-24 02:11:57,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376970231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:57,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:57,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035493671] [2024-11-24 02:11:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:57,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:11:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:57,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:11:57,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:11:57,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-11-24 02:11:57,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 515 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:57,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:11:57,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-11-24 02:11:57,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:11:57,882 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-11-24 02:11:57,882 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-11-24 02:11:57,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 585 events. 140/585 cut-off events. For 340/365 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3029 event pairs, 14 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 1382. Up to 232 conditions per place. [2024-11-24 02:11:57,888 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-11-24 02:11:57,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-11-24 02:11:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:11:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:11:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-11-24 02:11:57,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-11-24 02:11:57,891 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-11-24 02:11:57,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-11-24 02:11:57,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-24 02:11:57,906 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-11-24 02:11:57,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=981, PETRI_PLACES=119, PETRI_TRANSITIONS=168} [2024-11-24 02:11:57,910 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-24 02:11:57,910 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-11-24 02:11:57,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:57,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:57,912 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] [2024-11-24 02:11:57,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:11:57,912 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:57,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash -846821128, now seen corresponding path program 1 times [2024-11-24 02:11:57,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:57,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475429464] [2024-11-24 02:11:57,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:11:58,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475429464] [2024-11-24 02:11:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475429464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:58,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563671468] [2024-11-24 02:11:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:58,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:11:58,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:58,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:11:58,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:11:58,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-11-24 02:11:58,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 168 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:58,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:11:58,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-11-24 02:11:58,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:11:58,891 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-11-24 02:11:58,891 INFO L125 PetriNetUnfolderBase]: For 641/658 co-relation queries the response was YES. [2024-11-24 02:11:58,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 536 events. 125/536 cut-off events. For 641/658 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2792 event pairs, 6 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1501. Up to 135 conditions per place. [2024-11-24 02:11:58,898 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-11-24 02:11:58,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-11-24 02:11:58,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:11:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 02:11:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-24 02:11:58,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-11-24 02:11:58,901 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-11-24 02:11:58,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-11-24 02:11:58,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-24 02:11:58,917 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-11-24 02:11:58,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2024-11-24 02:11:58,918 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-11-24 02:11:58,918 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-11-24 02:11:58,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:11:58,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:11:58,919 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:58,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:11:58,920 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:11:58,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1450828712, now seen corresponding path program 1 times [2024-11-24 02:11:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732788794] [2024-11-24 02:11:58,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:58,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:12:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:00,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:00,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732788794] [2024-11-24 02:12:00,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732788794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:00,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:00,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:12:00,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783823922] [2024-11-24 02:12:00,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:00,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:12:00,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:00,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:12:00,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:12:01,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-24 02:12:01,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 908 flow. Second operand has 13 states, 13 states have (on average 57.07692307692308) internal successors, (742), 13 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:01,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:12:01,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-24 02:12:01,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:12:02,409 INFO L124 PetriNetUnfolderBase]: 186/656 cut-off events. [2024-11-24 02:12:02,409 INFO L125 PetriNetUnfolderBase]: For 784/799 co-relation queries the response was YES. [2024-11-24 02:12:02,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 656 events. 186/656 cut-off events. For 784/799 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3345 event pairs, 9 based on Foata normal form. 1/653 useless extension candidates. Maximal degree in co-relation 2164. Up to 286 conditions per place. [2024-11-24 02:12:02,419 INFO L140 encePairwiseOnDemand]: 72/90 looper letters, 114 selfloop transitions, 46 changer transitions 0/200 dead transitions. [2024-11-24 02:12:02,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 200 transitions, 1524 flow [2024-11-24 02:12:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:12:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 02:12:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 861 transitions. [2024-11-24 02:12:02,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-24 02:12:02,427 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 14 states and 861 transitions. [2024-11-24 02:12:02,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 200 transitions, 1524 flow [2024-11-24 02:12:02,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 200 transitions, 1522 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 02:12:02,445 INFO L231 Difference]: Finished difference. Result has 117 places, 167 transitions, 1203 flow [2024-11-24 02:12:02,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1203, PETRI_PLACES=117, PETRI_TRANSITIONS=167} [2024-11-24 02:12:02,447 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 28 predicate places. [2024-11-24 02:12:02,448 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 167 transitions, 1203 flow [2024-11-24 02:12:02,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.07692307692308) internal successors, (742), 13 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:02,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:12:02,449 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:02,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:12:02,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:12:02,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1162447229, now seen corresponding path program 1 times [2024-11-24 02:12:02,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:02,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783739641] [2024-11-24 02:12:02,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:12:02,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:12:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:03,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:03,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783739641] [2024-11-24 02:12:03,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783739641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:03,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:03,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:12:03,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927740486] [2024-11-24 02:12:03,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:03,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:12:03,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:03,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:12:03,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:12:04,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 90 [2024-11-24 02:12:04,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 167 transitions, 1203 flow. Second operand has 13 states, 13 states have (on average 61.84615384615385) internal successors, (804), 13 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:04,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:12:04,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 90 [2024-11-24 02:12:04,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:12:05,214 INFO L124 PetriNetUnfolderBase]: 193/700 cut-off events. [2024-11-24 02:12:05,215 INFO L125 PetriNetUnfolderBase]: For 1242/1273 co-relation queries the response was YES. [2024-11-24 02:12:05,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 700 events. 193/700 cut-off events. For 1242/1273 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3724 event pairs, 12 based on Foata normal form. 4/703 useless extension candidates. Maximal degree in co-relation 2565. Up to 354 conditions per place. [2024-11-24 02:12:05,222 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 130 selfloop transitions, 37 changer transitions 0/212 dead transitions. [2024-11-24 02:12:05,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 212 transitions, 1845 flow [2024-11-24 02:12:05,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:12:05,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 02:12:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 911 transitions. [2024-11-24 02:12:05,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.723015873015873 [2024-11-24 02:12:05,226 INFO L175 Difference]: Start difference. First operand has 117 places, 167 transitions, 1203 flow. Second operand 14 states and 911 transitions. [2024-11-24 02:12:05,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 212 transitions, 1845 flow [2024-11-24 02:12:05,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 212 transitions, 1807 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-24 02:12:05,244 INFO L231 Difference]: Finished difference. Result has 136 places, 195 transitions, 1567 flow [2024-11-24 02:12:05,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1193, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1567, PETRI_PLACES=136, PETRI_TRANSITIONS=195} [2024-11-24 02:12:05,245 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 47 predicate places. [2024-11-24 02:12:05,245 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 195 transitions, 1567 flow [2024-11-24 02:12:05,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.84615384615385) internal successors, (804), 13 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:05,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:12:05,246 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:05,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:12:05,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:12:05,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 315278583, now seen corresponding path program 2 times [2024-11-24 02:12:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:05,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173511020] [2024-11-24 02:12:05,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:12:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:05,274 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 02:12:05,274 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:12:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:06,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:06,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173511020] [2024-11-24 02:12:06,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173511020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:06,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:06,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:12:06,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788556204] [2024-11-24 02:12:06,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:06,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:12:06,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:06,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:12:06,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:12:07,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-24 02:12:07,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 195 transitions, 1567 flow. Second operand has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:07,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:12:07,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-24 02:12:07,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:12:08,325 INFO L124 PetriNetUnfolderBase]: 214/791 cut-off events. [2024-11-24 02:12:08,326 INFO L125 PetriNetUnfolderBase]: For 2170/2204 co-relation queries the response was YES. [2024-11-24 02:12:08,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3235 conditions, 791 events. 214/791 cut-off events. For 2170/2204 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4462 event pairs, 9 based on Foata normal form. 6/795 useless extension candidates. Maximal degree in co-relation 3198. Up to 350 conditions per place. [2024-11-24 02:12:08,335 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 137 selfloop transitions, 77 changer transitions 0/263 dead transitions. [2024-11-24 02:12:08,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 263 transitions, 2641 flow [2024-11-24 02:12:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 02:12:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-24 02:12:08,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1435 transitions. [2024-11-24 02:12:08,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7247474747474747 [2024-11-24 02:12:08,341 INFO L175 Difference]: Start difference. First operand has 136 places, 195 transitions, 1567 flow. Second operand 22 states and 1435 transitions. [2024-11-24 02:12:08,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 263 transitions, 2641 flow [2024-11-24 02:12:08,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 263 transitions, 2589 flow, removed 25 selfloop flow, removed 1 redundant places. [2024-11-24 02:12:08,377 INFO L231 Difference]: Finished difference. Result has 168 places, 247 transitions, 2323 flow [2024-11-24 02:12:08,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1545, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2323, PETRI_PLACES=168, PETRI_TRANSITIONS=247} [2024-11-24 02:12:08,380 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 79 predicate places. [2024-11-24 02:12:08,380 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 247 transitions, 2323 flow [2024-11-24 02:12:08,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:08,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:12:08,383 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:08,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:12:08,383 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:12:08,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1949562731, now seen corresponding path program 3 times [2024-11-24 02:12:08,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:08,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963170964] [2024-11-24 02:12:08,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:12:08,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:08,451 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:12:08,455 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:12:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:09,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:09,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963170964] [2024-11-24 02:12:09,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963170964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:12:09,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481188493] [2024-11-24 02:12:09,478 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:12:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:12:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:12:09,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:12:09,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:12:09,702 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:12:09,702 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:12:09,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 02:12:09,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:12:10,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:12:10,233 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 19 treesize of output 18 [2024-11-24 02:12:10,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 02:12:10,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 02:12:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:12:10,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:12:10,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 02:12:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:10,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:12:14,955 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#race| |c_ULTIMATE.start_main_~is~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~post11#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~is~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse1))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~is~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse1))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~is~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 3)) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse1))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= 0 (select (select (store |c_#race| |c_ULTIMATE.start_main_~is~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset))) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse1))))) is different from false [2024-11-24 02:12:18,468 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse3 0)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~is~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post11#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= 0 (select (select (store .cse0 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)))) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse2))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse2))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse3) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse2))) (forall ((|v_ULTIMATE.start_main_~i~1#1_25| Int)) (or (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~1#1_25| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) 0)) (< |v_ULTIMATE.start_main_~i~1#1_25| .cse2))))))) is different from false [2024-11-24 02:12:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-24 02:12:23,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481188493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:12:23,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:12:23,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 35 [2024-11-24 02:12:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938893027] [2024-11-24 02:12:23,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:12:23,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 02:12:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:23,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 02:12:23,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=976, Unknown=2, NotChecked=130, Total=1260 [2024-11-24 02:12:24,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 90 [2024-11-24 02:12:24,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 247 transitions, 2323 flow. Second operand has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:24,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:12:24,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 90 [2024-11-24 02:12:24,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:12:30,494 INFO L124 PetriNetUnfolderBase]: 539/1736 cut-off events. [2024-11-24 02:12:30,494 INFO L125 PetriNetUnfolderBase]: For 6460/6463 co-relation queries the response was YES. [2024-11-24 02:12:30,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7742 conditions, 1736 events. 539/1736 cut-off events. For 6460/6463 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12204 event pairs, 58 based on Foata normal form. 7/1739 useless extension candidates. Maximal degree in co-relation 7693. Up to 489 conditions per place. [2024-11-24 02:12:30,516 INFO L140 encePairwiseOnDemand]: 64/90 looper letters, 305 selfloop transitions, 125 changer transitions 0/462 dead transitions. [2024-11-24 02:12:30,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 462 transitions, 5267 flow [2024-11-24 02:12:30,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 02:12:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-24 02:12:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1372 transitions. [2024-11-24 02:12:30,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5081481481481481 [2024-11-24 02:12:30,522 INFO L175 Difference]: Start difference. First operand has 168 places, 247 transitions, 2323 flow. Second operand 30 states and 1372 transitions. [2024-11-24 02:12:30,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 462 transitions, 5267 flow [2024-11-24 02:12:30,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 462 transitions, 5159 flow, removed 43 selfloop flow, removed 4 redundant places. [2024-11-24 02:12:30,597 INFO L231 Difference]: Finished difference. Result has 209 places, 310 transitions, 3573 flow [2024-11-24 02:12:30,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=2246, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=3573, PETRI_PLACES=209, PETRI_TRANSITIONS=310} [2024-11-24 02:12:30,599 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 120 predicate places. [2024-11-24 02:12:30,599 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 310 transitions, 3573 flow [2024-11-24 02:12:30,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:12:30,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:12:30,601 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:30,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:12:30,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-24 02:12:30,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:12:30,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:30,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1045399295, now seen corresponding path program 4 times [2024-11-24 02:12:30,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:30,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231167096] [2024-11-24 02:12:30,803 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 02:12:30,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:30,836 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 02:12:30,836 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:12:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:31,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:31,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231167096] [2024-11-24 02:12:31,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231167096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:12:31,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277903463] [2024-11-24 02:12:31,715 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 02:12:31,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:12:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:12:31,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:12:31,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:12:31,847 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 02:12:31,847 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:12:31,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:12:31,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:12:31,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:12:32,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:12:32,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:12:32,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:12:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:12:32,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:12:32,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:12:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:12:32,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:12:32,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:12:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:32,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:12:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:12:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277903463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:12:49,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:12:49,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:12:49,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748521045] [2024-11-24 02:12:49,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:12:49,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:12:49,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:49,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:12:49,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=776, Unknown=1, NotChecked=0, Total=930 [2024-11-24 02:12:54,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:12:57,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:03,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:06,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:08,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:11,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:16,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:22,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:28,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:33,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:35,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:39,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:44,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:48,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:51,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:55,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:57,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:13:59,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:02,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:09,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:10,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:14,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:19,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:24,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:27,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:30,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:32,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:34,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:36,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:14:37,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 90 [2024-11-24 02:14:37,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 310 transitions, 3573 flow. Second operand has 31 states, 31 states have (on average 55.193548387096776) internal successors, (1711), 31 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:14:37,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:14:37,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 90 [2024-11-24 02:14:37,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:14:43,624 INFO L124 PetriNetUnfolderBase]: 526/1897 cut-off events. [2024-11-24 02:14:43,624 INFO L125 PetriNetUnfolderBase]: For 8835/8853 co-relation queries the response was YES. [2024-11-24 02:14:43,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8932 conditions, 1897 events. 526/1897 cut-off events. For 8835/8853 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 14489 event pairs, 49 based on Foata normal form. 17/1910 useless extension candidates. Maximal degree in co-relation 8867. Up to 900 conditions per place. [2024-11-24 02:14:43,655 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 240 selfloop transitions, 124 changer transitions 0/404 dead transitions. [2024-11-24 02:14:43,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 404 transitions, 5388 flow [2024-11-24 02:14:43,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:14:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-24 02:14:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1119 transitions. [2024-11-24 02:14:43,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6543859649122807 [2024-11-24 02:14:43,660 INFO L175 Difference]: Start difference. First operand has 209 places, 310 transitions, 3573 flow. Second operand 19 states and 1119 transitions. [2024-11-24 02:14:43,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 404 transitions, 5388 flow [2024-11-24 02:14:43,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 404 transitions, 5318 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-11-24 02:14:43,804 INFO L231 Difference]: Finished difference. Result has 228 places, 348 transitions, 4610 flow [2024-11-24 02:14:43,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3503, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4610, PETRI_PLACES=228, PETRI_TRANSITIONS=348} [2024-11-24 02:14:43,805 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 139 predicate places. [2024-11-24 02:14:43,806 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 348 transitions, 4610 flow [2024-11-24 02:14:43,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 55.193548387096776) internal successors, (1711), 31 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:14:43,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:14:43,807 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:14:43,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 02:14:44,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 02:14:44,011 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:14:44,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:14:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1037875199, now seen corresponding path program 5 times [2024-11-24 02:14:44,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:14:44,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959792574] [2024-11-24 02:14:44,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:14:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:14:44,049 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:14:44,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:14:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:14:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:14:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959792574] [2024-11-24 02:14:45,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959792574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:14:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407366302] [2024-11-24 02:14:45,415 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:14:45,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:14:45,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:14:45,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:14:45,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:14:45,564 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:14:45,565 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:14:45,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 02:14:45,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:14:45,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:14:45,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:14:46,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:14:46,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:14:46,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:14:46,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:14:46,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:14:46,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:14:46,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:14:46,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:14:46,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:14:46,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:14:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:14:46,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:14:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:14:48,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407366302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:14:48,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:14:48,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-24 02:14:48,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006600694] [2024-11-24 02:14:48,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:14:48,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 02:14:48,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:14:48,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 02:14:48,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:14:54,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-24 02:14:54,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 348 transitions, 4610 flow. Second operand has 26 states, 26 states have (on average 62.57692307692308) internal successors, (1627), 26 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:14:54,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:14:54,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-24 02:14:54,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:14:59,150 INFO L124 PetriNetUnfolderBase]: 588/2237 cut-off events. [2024-11-24 02:14:59,150 INFO L125 PetriNetUnfolderBase]: For 14724/14923 co-relation queries the response was YES. [2024-11-24 02:14:59,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11431 conditions, 2237 events. 588/2237 cut-off events. For 14724/14923 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 18630 event pairs, 28 based on Foata normal form. 72/2305 useless extension candidates. Maximal degree in co-relation 11360. Up to 648 conditions per place. [2024-11-24 02:14:59,173 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 286 selfloop transitions, 191 changer transitions 0/526 dead transitions. [2024-11-24 02:14:59,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 526 transitions, 7763 flow [2024-11-24 02:14:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:14:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-24 02:14:59,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1276 transitions. [2024-11-24 02:14:59,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7461988304093568 [2024-11-24 02:14:59,176 INFO L175 Difference]: Start difference. First operand has 228 places, 348 transitions, 4610 flow. Second operand 19 states and 1276 transitions. [2024-11-24 02:14:59,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 526 transitions, 7763 flow [2024-11-24 02:14:59,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 526 transitions, 7678 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-11-24 02:14:59,309 INFO L231 Difference]: Finished difference. Result has 249 places, 430 transitions, 6476 flow [2024-11-24 02:14:59,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=4532, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6476, PETRI_PLACES=249, PETRI_TRANSITIONS=430} [2024-11-24 02:14:59,310 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 160 predicate places. [2024-11-24 02:14:59,310 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 430 transitions, 6476 flow [2024-11-24 02:14:59,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 62.57692307692308) internal successors, (1627), 26 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:14:59,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:14:59,311 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:14:59,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 02:14:59,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 02:14:59,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:14:59,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:14:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2044653991, now seen corresponding path program 6 times [2024-11-24 02:14:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:14:59,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819119101] [2024-11-24 02:14:59,513 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 02:14:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:14:59,555 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-24 02:14:59,555 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:15:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:15:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819119101] [2024-11-24 02:15:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819119101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:15:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907365716] [2024-11-24 02:15:00,968 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 02:15:00,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:15:00,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:15:00,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:15:00,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 02:15:01,242 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-24 02:15:01,242 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:15:01,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 02:15:01,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:15:01,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:15:02,031 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 19 treesize of output 18 [2024-11-24 02:15:02,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 02:15:02,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 02:15:02,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:15:02,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:15:02,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 02:15:02,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:02,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:15:15,237 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse1 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse3 0)))) (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post11#1| 1)) (.cse2 (select .cse1 |c_ULTIMATE.start_main_~is~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_28| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_28| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_28| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_28| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_28| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_28| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_28| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_28| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_28| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_28| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_28| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_28| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse3) 0)))))))) is different from false [2024-11-24 02:15:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907365716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:15:22,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:15:22,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 35 [2024-11-24 02:15:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749465329] [2024-11-24 02:15:22,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:15:22,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 02:15:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:15:22,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 02:15:22,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=4, NotChecked=66, Total=1260 [2024-11-24 02:15:23,813 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 90 [2024-11-24 02:15:23,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 430 transitions, 6476 flow. Second operand has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:15:23,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:15:23,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 90 [2024-11-24 02:15:23,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:15:30,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:15:36,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:15:39,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:15:44,975 INFO L124 PetriNetUnfolderBase]: 944/3338 cut-off events. [2024-11-24 02:15:44,976 INFO L125 PetriNetUnfolderBase]: For 29945/29954 co-relation queries the response was YES. [2024-11-24 02:15:44,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18102 conditions, 3338 events. 944/3338 cut-off events. For 29945/29954 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 29741 event pairs, 109 based on Foata normal form. 12/3344 useless extension candidates. Maximal degree in co-relation 18020. Up to 1512 conditions per place. [2024-11-24 02:15:45,011 INFO L140 encePairwiseOnDemand]: 64/90 looper letters, 355 selfloop transitions, 209 changer transitions 0/596 dead transitions. [2024-11-24 02:15:45,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 596 transitions, 9864 flow [2024-11-24 02:15:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 02:15:45,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-24 02:15:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1288 transitions. [2024-11-24 02:15:45,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2024-11-24 02:15:45,015 INFO L175 Difference]: Start difference. First operand has 249 places, 430 transitions, 6476 flow. Second operand 28 states and 1288 transitions. [2024-11-24 02:15:45,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 596 transitions, 9864 flow [2024-11-24 02:15:45,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 596 transitions, 9745 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-11-24 02:15:45,278 INFO L231 Difference]: Finished difference. Result has 280 places, 495 transitions, 8495 flow [2024-11-24 02:15:45,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6378, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=8495, PETRI_PLACES=280, PETRI_TRANSITIONS=495} [2024-11-24 02:15:45,279 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 191 predicate places. [2024-11-24 02:15:45,279 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 495 transitions, 8495 flow [2024-11-24 02:15:45,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:15:45,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:15:45,280 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:15:45,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 02:15:45,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 02:15:45,481 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:15:45,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:15:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1448554838, now seen corresponding path program 2 times [2024-11-24 02:15:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:15:45,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809319543] [2024-11-24 02:15:45,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:15:45,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:15:45,507 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:15:45,507 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:15:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:15:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809319543] [2024-11-24 02:15:46,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809319543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:15:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090862354] [2024-11-24 02:15:46,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:15:46,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:15:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:15:46,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:15:46,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 02:15:46,869 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:15:46,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:15:46,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 02:15:46,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:15:47,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-24 02:15:47,295 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 28 treesize of output 27 [2024-11-24 02:15:47,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-24 02:15:47,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-24 02:15:47,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:15:47,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:15:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:15:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:15:47,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:15:47,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-24 02:15:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:47,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:15:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:49,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090862354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:15:49,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:15:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:15:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068459141] [2024-11-24 02:15:49,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:15:49,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:15:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:15:49,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:15:49,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:15:54,500 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-24 02:15:54,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 495 transitions, 8495 flow. Second operand has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:15:54,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:15:54,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-24 02:15:54,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:15:57,375 INFO L124 PetriNetUnfolderBase]: 679/2735 cut-off events. [2024-11-24 02:15:57,375 INFO L125 PetriNetUnfolderBase]: For 27126/27279 co-relation queries the response was YES. [2024-11-24 02:15:57,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15533 conditions, 2735 events. 679/2735 cut-off events. For 27126/27279 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24612 event pairs, 48 based on Foata normal form. 63/2791 useless extension candidates. Maximal degree in co-relation 15441. Up to 705 conditions per place. [2024-11-24 02:15:57,400 INFO L140 encePairwiseOnDemand]: 72/90 looper letters, 367 selfloop transitions, 162 changer transitions 0/609 dead transitions. [2024-11-24 02:15:57,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 609 transitions, 10837 flow [2024-11-24 02:15:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:15:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-24 02:15:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 920 transitions. [2024-11-24 02:15:57,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2024-11-24 02:15:57,404 INFO L175 Difference]: Start difference. First operand has 280 places, 495 transitions, 8495 flow. Second operand 15 states and 920 transitions. [2024-11-24 02:15:57,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 609 transitions, 10837 flow [2024-11-24 02:15:57,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 609 transitions, 10695 flow, removed 51 selfloop flow, removed 9 redundant places. [2024-11-24 02:15:57,782 INFO L231 Difference]: Finished difference. Result has 292 places, 528 transitions, 9321 flow [2024-11-24 02:15:57,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8354, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9321, PETRI_PLACES=292, PETRI_TRANSITIONS=528} [2024-11-24 02:15:57,784 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 203 predicate places. [2024-11-24 02:15:57,785 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 528 transitions, 9321 flow [2024-11-24 02:15:57,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:15:57,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:15:57,786 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:15:57,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 02:15:57,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 02:15:57,987 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:15:57,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:15:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash -853184017, now seen corresponding path program 7 times [2024-11-24 02:15:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:15:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115881643] [2024-11-24 02:15:57,988 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 02:15:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:15:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:15:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:15:59,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:15:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115881643] [2024-11-24 02:15:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115881643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:15:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400098642] [2024-11-24 02:15:59,434 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 02:15:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:15:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:15:59,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:15:59,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 02:15:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:15:59,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 02:15:59,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:15:59,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:15:59,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:16:00,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:16:00,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:16:00,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:16:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:16:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:16:00,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:16:00,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:16:00,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:16:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:16:00,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:16:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:16:02,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400098642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:16:02,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:16:02,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:16:02,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434484510] [2024-11-24 02:16:02,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:16:02,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:16:02,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:16:02,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:16:02,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:16:07,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:13,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:20,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:25,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:32,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:38,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:42,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:49,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:16:49,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-24 02:16:49,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 528 transitions, 9321 flow. Second operand has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:16:49,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:16:49,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-24 02:16:49,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:16:54,626 INFO L124 PetriNetUnfolderBase]: 872/3352 cut-off events. [2024-11-24 02:16:54,627 INFO L125 PetriNetUnfolderBase]: For 39012/39253 co-relation queries the response was YES. [2024-11-24 02:16:54,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20161 conditions, 3352 events. 872/3352 cut-off events. For 39012/39253 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 31147 event pairs, 58 based on Foata normal form. 100/3449 useless extension candidates. Maximal degree in co-relation 20063. Up to 1183 conditions per place. [2024-11-24 02:16:54,669 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 413 selfloop transitions, 228 changer transitions 0/685 dead transitions. [2024-11-24 02:16:54,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 685 transitions, 13083 flow [2024-11-24 02:16:54,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 02:16:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 02:16:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1286 transitions. [2024-11-24 02:16:54,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6804232804232804 [2024-11-24 02:16:54,672 INFO L175 Difference]: Start difference. First operand has 292 places, 528 transitions, 9321 flow. Second operand 21 states and 1286 transitions. [2024-11-24 02:16:54,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 685 transitions, 13083 flow [2024-11-24 02:16:55,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 685 transitions, 12870 flow, removed 27 selfloop flow, removed 8 redundant places. [2024-11-24 02:16:55,243 INFO L231 Difference]: Finished difference. Result has 314 places, 584 transitions, 11186 flow [2024-11-24 02:16:55,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9138, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11186, PETRI_PLACES=314, PETRI_TRANSITIONS=584} [2024-11-24 02:16:55,245 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 225 predicate places. [2024-11-24 02:16:55,245 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 584 transitions, 11186 flow [2024-11-24 02:16:55,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:16:55,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:16:55,249 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:16:55,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 02:16:55,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 02:16:55,449 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:16:55,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:16:55,450 INFO L85 PathProgramCache]: Analyzing trace with hash 610806143, now seen corresponding path program 8 times [2024-11-24 02:16:55,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:16:55,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551003996] [2024-11-24 02:16:55,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:16:55,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:16:55,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:16:55,485 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:16:56,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:16:56,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:16:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551003996] [2024-11-24 02:16:56,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551003996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:16:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613384656] [2024-11-24 02:16:56,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:16:56,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:16:56,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:16:56,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:16:56,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 02:16:56,939 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:16:56,939 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:16:56,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 02:16:56,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:16:57,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:16:57,672 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 19 treesize of output 18 [2024-11-24 02:16:57,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 02:16:57,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 02:16:58,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:16:58,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:16:58,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 02:16:58,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:16:58,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:17:20,201 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_threadThread1of1ForFork0_~p~0.offset 1)) (.cse5 (+ c_threadThread1of1ForFork0_~p~0.offset 2)) (.cse4 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse1 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (store (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse3 0) .cse5 0) .cse4 0)))) (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post11#1| 1)) (.cse2 (select .cse1 |c_ULTIMATE.start_main_~is~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_31| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_31| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_31| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse3) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_31| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_31| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_31| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse4) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_31| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_31| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_31| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) 0)))) (forall ((|v_ULTIMATE.start_main_~i~1#1_31| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_31| .cse0) (forall ((|ULTIMATE.start_main_#t~nondet7#1| Int)) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_31| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse5) 0)))))))) is different from false [2024-11-24 02:17:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:17:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613384656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:17:32,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:17:32,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 35 [2024-11-24 02:17:32,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065894085] [2024-11-24 02:17:32,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:17:32,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 02:17:32,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:32,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 02:17:32,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1039, Unknown=8, NotChecked=66, Total=1260 [2024-11-24 02:17:33,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 90 [2024-11-24 02:17:33,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 584 transitions, 11186 flow. Second operand has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:17:33,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:17:33,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 90 [2024-11-24 02:17:33,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:17:40,758 INFO L124 PetriNetUnfolderBase]: 1078/3876 cut-off events. [2024-11-24 02:17:40,758 INFO L125 PetriNetUnfolderBase]: For 51342/51351 co-relation queries the response was YES. [2024-11-24 02:17:40,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24114 conditions, 3876 events. 1078/3876 cut-off events. For 51342/51351 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 36151 event pairs, 167 based on Foata normal form. 6/3876 useless extension candidates. Maximal degree in co-relation 24006. Up to 2069 conditions per place. [2024-11-24 02:17:40,815 INFO L140 encePairwiseOnDemand]: 64/90 looper letters, 346 selfloop transitions, 277 changer transitions 0/657 dead transitions. [2024-11-24 02:17:40,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 657 transitions, 13405 flow [2024-11-24 02:17:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 02:17:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-24 02:17:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1334 transitions. [2024-11-24 02:17:40,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49407407407407405 [2024-11-24 02:17:40,819 INFO L175 Difference]: Start difference. First operand has 314 places, 584 transitions, 11186 flow. Second operand 30 states and 1334 transitions. [2024-11-24 02:17:40,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 657 transitions, 13405 flow [2024-11-24 02:17:41,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 657 transitions, 13201 flow, removed 83 selfloop flow, removed 5 redundant places. [2024-11-24 02:17:41,559 INFO L231 Difference]: Finished difference. Result has 355 places, 617 transitions, 12697 flow [2024-11-24 02:17:41,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10992, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=12697, PETRI_PLACES=355, PETRI_TRANSITIONS=617} [2024-11-24 02:17:41,560 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 266 predicate places. [2024-11-24 02:17:41,560 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 617 transitions, 12697 flow [2024-11-24 02:17:41,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 42.72222222222222) internal successors, (1538), 36 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:17:41,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:17:41,561 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:41,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 02:17:41,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 02:17:41,761 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:17:41,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash -587950799, now seen corresponding path program 9 times [2024-11-24 02:17:41,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:41,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398549329] [2024-11-24 02:17:41,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:17:41,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:41,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:17:41,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:17:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:17:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398549329] [2024-11-24 02:17:43,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398549329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:17:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153972989] [2024-11-24 02:17:43,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:17:43,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:17:43,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:17:43,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:17:43,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 02:17:43,258 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:17:43,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:17:43,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 02:17:43,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:17:43,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:17:43,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:17:43,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:17:44,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:17:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:17:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:17:44,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:17:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:17:44,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:17:44,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 47 [2024-11-24 02:17:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:17:44,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:17:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:17:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153972989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:17:51,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:17:51,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:17:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460476301] [2024-11-24 02:17:51,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:17:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:17:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:51,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:17:51,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=804, Unknown=1, NotChecked=0, Total=930 [2024-11-24 02:18:00,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:18:05,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-24 02:18:05,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 617 transitions, 12697 flow. Second operand has 31 states, 31 states have (on average 62.74193548387097) internal successors, (1945), 31 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:18:05,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:18:05,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-24 02:18:05,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:18:12,138 INFO L124 PetriNetUnfolderBase]: 813/3345 cut-off events. [2024-11-24 02:18:12,138 INFO L125 PetriNetUnfolderBase]: For 55538/56055 co-relation queries the response was YES. [2024-11-24 02:18:12,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22322 conditions, 3345 events. 813/3345 cut-off events. For 55538/56055 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 32141 event pairs, 47 based on Foata normal form. 154/3488 useless extension candidates. Maximal degree in co-relation 22197. Up to 797 conditions per place. [2024-11-24 02:18:12,181 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 401 selfloop transitions, 277 changer transitions 0/731 dead transitions. [2024-11-24 02:18:12,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 731 transitions, 16121 flow [2024-11-24 02:18:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 02:18:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-24 02:18:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1595 transitions. [2024-11-24 02:18:12,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7384259259259259 [2024-11-24 02:18:12,184 INFO L175 Difference]: Start difference. First operand has 355 places, 617 transitions, 12697 flow. Second operand 24 states and 1595 transitions. [2024-11-24 02:18:12,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 731 transitions, 16121 flow [2024-11-24 02:18:12,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 731 transitions, 15844 flow, removed 65 selfloop flow, removed 8 redundant places. [2024-11-24 02:18:12,756 INFO L231 Difference]: Finished difference. Result has 377 places, 656 transitions, 14301 flow [2024-11-24 02:18:12,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12424, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14301, PETRI_PLACES=377, PETRI_TRANSITIONS=656} [2024-11-24 02:18:12,757 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 288 predicate places. [2024-11-24 02:18:12,757 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 656 transitions, 14301 flow [2024-11-24 02:18:12,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 62.74193548387097) internal successors, (1945), 31 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:18:12,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:18:12,758 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:18:12,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 02:18:12,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 02:18:12,959 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:18:12,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:18:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1465089521, now seen corresponding path program 10 times [2024-11-24 02:18:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:18:12,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401406633] [2024-11-24 02:18:12,960 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 02:18:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:18:12,977 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 02:18:12,977 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:18:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:18:14,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:18:14,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401406633] [2024-11-24 02:18:14,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401406633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:14,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684436104] [2024-11-24 02:18:14,125 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 02:18:14,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:18:14,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:18:14,129 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:18:14,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 02:18:14,259 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 02:18:14,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:18:14,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:18:14,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:18:14,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:18:14,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:18:14,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:18:14,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:18:15,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:18:15,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:18:15,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:18:15,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:18:15,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:18:15,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:18:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:18:15,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:18:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:18:33,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684436104] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:18:33,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:18:33,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:18:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246837747] [2024-11-24 02:18:33,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:18:33,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:18:33,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:18:33,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:18:33,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=792, Unknown=2, NotChecked=0, Total=930 [2024-11-24 02:18:38,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:18:44,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:18:49,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:18:54,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:18:59,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:07,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:11,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:17,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:20,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:24,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:29,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:19:30,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2024-11-24 02:19:30,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 656 transitions, 14301 flow. Second operand has 31 states, 31 states have (on average 52.29032258064516) internal successors, (1621), 31 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:19:30,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:19:30,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2024-11-24 02:19:30,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:19:36,718 INFO L124 PetriNetUnfolderBase]: 1104/4170 cut-off events. [2024-11-24 02:19:36,718 INFO L125 PetriNetUnfolderBase]: For 79452/79475 co-relation queries the response was YES. [2024-11-24 02:19:36,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28536 conditions, 4170 events. 1104/4170 cut-off events. For 79452/79475 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 40834 event pairs, 143 based on Foata normal form. 17/4181 useless extension candidates. Maximal degree in co-relation 28404. Up to 1787 conditions per place. [2024-11-24 02:19:36,783 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 463 selfloop transitions, 274 changer transitions 0/779 dead transitions. [2024-11-24 02:19:36,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 779 transitions, 17645 flow [2024-11-24 02:19:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 02:19:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-24 02:19:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1355 transitions. [2024-11-24 02:19:36,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6273148148148148 [2024-11-24 02:19:36,788 INFO L175 Difference]: Start difference. First operand has 377 places, 656 transitions, 14301 flow. Second operand 24 states and 1355 transitions. [2024-11-24 02:19:36,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 779 transitions, 17645 flow [2024-11-24 02:19:37,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 779 transitions, 17316 flow, removed 68 selfloop flow, removed 12 redundant places. [2024-11-24 02:19:37,739 INFO L231 Difference]: Finished difference. Result has 393 places, 685 transitions, 15560 flow [2024-11-24 02:19:37,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=13975, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=15560, PETRI_PLACES=393, PETRI_TRANSITIONS=685} [2024-11-24 02:19:37,741 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 304 predicate places. [2024-11-24 02:19:37,741 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 685 transitions, 15560 flow [2024-11-24 02:19:37,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 52.29032258064516) internal successors, (1621), 31 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:19:37,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:19:37,742 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:19:37,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 02:19:37,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 02:19:37,943 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:19:37,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:19:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 960998475, now seen corresponding path program 11 times [2024-11-24 02:19:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:19:37,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936691658] [2024-11-24 02:19:37,944 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:19:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:19:37,963 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:19:37,963 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:19:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:19:39,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:19:39,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936691658] [2024-11-24 02:19:39,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936691658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:19:39,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826461134] [2024-11-24 02:19:39,241 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:19:39,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:19:39,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:19:39,243 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:19:39,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 02:19:39,389 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:19:39,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:19:39,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 02:19:39,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:19:39,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:19:39,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:19:39,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:19:39,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:19:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:19:40,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:19:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:19:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:19:40,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:19:40,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:19:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:19:40,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:19:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:19:46,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826461134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:19:46,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:19:46,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-11-24 02:19:46,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017091310] [2024-11-24 02:19:46,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:19:46,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 02:19:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:19:46,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 02:19:46,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=630, Unknown=1, NotChecked=0, Total=756 [2024-11-24 02:20:03,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 90 [2024-11-24 02:20:03,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 685 transitions, 15560 flow. Second operand has 28 states, 28 states have (on average 47.035714285714285) internal successors, (1317), 28 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:03,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:20:03,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 90 [2024-11-24 02:20:03,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:20:09,247 INFO L124 PetriNetUnfolderBase]: 1162/4385 cut-off events. [2024-11-24 02:20:09,247 INFO L125 PetriNetUnfolderBase]: For 91287/91310 co-relation queries the response was YES. [2024-11-24 02:20:09,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30369 conditions, 4385 events. 1162/4385 cut-off events. For 91287/91310 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 43332 event pairs, 126 based on Foata normal form. 17/4393 useless extension candidates. Maximal degree in co-relation 30231. Up to 1073 conditions per place. [2024-11-24 02:20:09,310 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 500 selfloop transitions, 302 changer transitions 0/841 dead transitions. [2024-11-24 02:20:09,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 841 transitions, 19452 flow [2024-11-24 02:20:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 02:20:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-24 02:20:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1213 transitions. [2024-11-24 02:20:09,312 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5859903381642512 [2024-11-24 02:20:09,312 INFO L175 Difference]: Start difference. First operand has 393 places, 685 transitions, 15560 flow. Second operand 23 states and 1213 transitions. [2024-11-24 02:20:09,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 841 transitions, 19452 flow [2024-11-24 02:20:10,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 841 transitions, 18982 flow, removed 36 selfloop flow, removed 14 redundant places. [2024-11-24 02:20:10,384 INFO L231 Difference]: Finished difference. Result has 407 places, 718 transitions, 16959 flow [2024-11-24 02:20:10,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=15110, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=16959, PETRI_PLACES=407, PETRI_TRANSITIONS=718} [2024-11-24 02:20:10,385 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 318 predicate places. [2024-11-24 02:20:10,385 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 718 transitions, 16959 flow [2024-11-24 02:20:10,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 47.035714285714285) internal successors, (1317), 28 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:10,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:20:10,386 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:20:10,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 02:20:10,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 02:20:10,587 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:20:10,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:20:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1143149374, now seen corresponding path program 3 times [2024-11-24 02:20:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:20:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420793449] [2024-11-24 02:20:10,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:20:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:20:10,606 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:20:10,606 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:20:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:12,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:20:12,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420793449] [2024-11-24 02:20:12,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420793449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:12,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683725532] [2024-11-24 02:20:12,201 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:20:12,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:12,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:20:12,203 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:20:12,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 02:20:12,432 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:20:12,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:20:12,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:20:12,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:20:12,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-24 02:20:12,833 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 28 treesize of output 27 [2024-11-24 02:20:12,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-24 02:20:13,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-24 02:20:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:13,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:13,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:13,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:13,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:20:13,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-24 02:20:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:13,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:20:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:15,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683725532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:20:15,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:20:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:20:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621115568] [2024-11-24 02:20:15,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:20:15,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:20:15,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:20:15,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:20:15,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:20:23,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-24 02:20:23,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 718 transitions, 16959 flow. Second operand has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:23,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:20:23,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-24 02:20:23,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:20:27,704 INFO L124 PetriNetUnfolderBase]: 988/4138 cut-off events. [2024-11-24 02:20:27,704 INFO L125 PetriNetUnfolderBase]: For 93176/93379 co-relation queries the response was YES. [2024-11-24 02:20:27,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29970 conditions, 4138 events. 988/4138 cut-off events. For 93176/93379 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 42216 event pairs, 72 based on Foata normal form. 54/4180 useless extension candidates. Maximal degree in co-relation 29826. Up to 1330 conditions per place. [2024-11-24 02:20:27,763 INFO L140 encePairwiseOnDemand]: 72/90 looper letters, 704 selfloop transitions, 193 changer transitions 0/999 dead transitions. [2024-11-24 02:20:27,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 999 transitions, 23084 flow [2024-11-24 02:20:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:20:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-24 02:20:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1178 transitions. [2024-11-24 02:20:27,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-24 02:20:27,766 INFO L175 Difference]: Start difference. First operand has 407 places, 718 transitions, 16959 flow. Second operand 19 states and 1178 transitions. [2024-11-24 02:20:27,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 999 transitions, 23084 flow [2024-11-24 02:20:29,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 999 transitions, 22507 flow, removed 118 selfloop flow, removed 17 redundant places. [2024-11-24 02:20:29,091 INFO L231 Difference]: Finished difference. Result has 414 places, 794 transitions, 18379 flow [2024-11-24 02:20:29,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=16436, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=18379, PETRI_PLACES=414, PETRI_TRANSITIONS=794} [2024-11-24 02:20:29,092 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 325 predicate places. [2024-11-24 02:20:29,093 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 794 transitions, 18379 flow [2024-11-24 02:20:29,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 57.03225806451613) internal successors, (1768), 31 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:29,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:20:29,094 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:20:29,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 02:20:29,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:29,294 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:20:29,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:20:29,296 INFO L85 PathProgramCache]: Analyzing trace with hash 517859977, now seen corresponding path program 12 times [2024-11-24 02:20:29,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:20:29,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51194304] [2024-11-24 02:20:29,296 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 02:20:29,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:20:29,322 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-24 02:20:29,323 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:20:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:30,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:20:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51194304] [2024-11-24 02:20:30,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51194304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366304107] [2024-11-24 02:20:30,690 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 02:20:30,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:30,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:20:30,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:20:30,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 02:20:30,958 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-24 02:20:30,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:20:30,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-24 02:20:30,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:20:31,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:20:31,688 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 19 treesize of output 18 [2024-11-24 02:20:32,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 02:20:32,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 02:20:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:32,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:20:32,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 02:20:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:20:32,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:20:41,957 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ c_threadThread1of1ForFork0_~p~0.offset 2)) (.cse3 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse1 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse4 0) .cse3 0)))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~is~0#1.base|)) (.cse0 (+ |c_ULTIMATE.start_main_~i~1#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_36| Int) (|ULTIMATE.start_main_#t~nondet7#1| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_36| .cse0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_36| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse3) 0))) (forall ((|v_ULTIMATE.start_main_~i~1#1_36| Int) (|ULTIMATE.start_main_#t~nondet7#1| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_36| .cse0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_36| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) 0))) (forall ((|v_ULTIMATE.start_main_~i~1#1_36| Int) (|ULTIMATE.start_main_#t~nondet7#1| Int)) (or (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_36| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) 0) (< |v_ULTIMATE.start_main_~i~1#1_36| .cse0))) (forall ((|v_ULTIMATE.start_main_~i~1#1_36| Int) (|ULTIMATE.start_main_#t~nondet7#1| Int)) (or (= (select (select (store .cse1 |c_ULTIMATE.start_main_~is~0#1.base| (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_36| 4) |c_ULTIMATE.start_main_~is~0#1.offset|) |ULTIMATE.start_main_#t~nondet7#1|)) c_threadThread1of1ForFork0_~p~0.base) .cse4) 0) (< |v_ULTIMATE.start_main_~i~1#1_36| .cse0))))))) is different from false [2024-11-24 02:20:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:43,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366304107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:20:43,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:20:43,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 11] total 34 [2024-11-24 02:20:43,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513976615] [2024-11-24 02:20:43,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:20:43,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 02:20:43,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:20:43,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 02:20:43,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=962, Unknown=2, NotChecked=64, Total=1190 [2024-11-24 02:20:44,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 90 [2024-11-24 02:20:44,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 794 transitions, 18379 flow. Second operand has 35 states, 35 states have (on average 45.65714285714286) internal successors, (1598), 35 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:44,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:20:44,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 90 [2024-11-24 02:20:44,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:20:52,969 INFO L124 PetriNetUnfolderBase]: 1345/4991 cut-off events. [2024-11-24 02:20:52,969 INFO L125 PetriNetUnfolderBase]: For 112347/112370 co-relation queries the response was YES. [2024-11-24 02:20:53,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35792 conditions, 4991 events. 1345/4991 cut-off events. For 112347/112370 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 50215 event pairs, 168 based on Foata normal form. 17/5000 useless extension candidates. Maximal degree in co-relation 35648. Up to 2309 conditions per place. [2024-11-24 02:20:53,047 INFO L140 encePairwiseOnDemand]: 66/90 looper letters, 574 selfloop transitions, 288 changer transitions 0/902 dead transitions. [2024-11-24 02:20:53,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 902 transitions, 21454 flow [2024-11-24 02:20:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 02:20:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-24 02:20:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1176 transitions. [2024-11-24 02:20:53,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2024-11-24 02:20:53,050 INFO L175 Difference]: Start difference. First operand has 414 places, 794 transitions, 18379 flow. Second operand 24 states and 1176 transitions. [2024-11-24 02:20:53,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 902 transitions, 21454 flow [2024-11-24 02:20:54,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 902 transitions, 21251 flow, removed 36 selfloop flow, removed 8 redundant places. [2024-11-24 02:20:54,674 INFO L231 Difference]: Finished difference. Result has 433 places, 813 transitions, 19362 flow [2024-11-24 02:20:54,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=18185, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=794, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=19362, PETRI_PLACES=433, PETRI_TRANSITIONS=813} [2024-11-24 02:20:54,675 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 344 predicate places. [2024-11-24 02:20:54,675 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 813 transitions, 19362 flow [2024-11-24 02:20:54,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 45.65714285714286) internal successors, (1598), 35 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:20:54,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:20:54,677 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:20:54,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 02:20:54,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:54,877 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:20:54,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:20:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash -418803073, now seen corresponding path program 13 times [2024-11-24 02:20:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:20:54,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011704128] [2024-11-24 02:20:54,879 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 02:20:54,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:20:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:20:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:55,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:20:55,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011704128] [2024-11-24 02:20:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011704128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:55,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594173829] [2024-11-24 02:20:55,872 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 02:20:55,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:55,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:20:55,874 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:20:55,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 02:20:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:20:56,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 02:20:56,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:20:56,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:20:56,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:20:56,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:20:56,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:20:56,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:56,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:56,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:20:56,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:20:56,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:20:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:20:56,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:21:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:21:13,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594173829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:21:13,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:21:13,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-24 02:21:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758175018] [2024-11-24 02:21:13,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:21:13,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 02:21:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:21:13,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 02:21:13,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=786, Unknown=3, NotChecked=0, Total=930 [2024-11-24 02:21:17,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:22,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:27,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:31,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:36,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:41,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:46,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:50,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:21:54,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:00,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:04,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:09,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:15,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:19,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:24,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:29,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:33,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:40,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:45,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:50,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:22:50,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 90 [2024-11-24 02:22:50,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 813 transitions, 19362 flow. Second operand has 31 states, 31 states have (on average 47.354838709677416) internal successors, (1468), 31 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:22:50,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:22:50,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 90 [2024-11-24 02:22:50,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:22:56,553 INFO L124 PetriNetUnfolderBase]: 1357/5097 cut-off events. [2024-11-24 02:22:56,554 INFO L125 PetriNetUnfolderBase]: For 126775/126792 co-relation queries the response was YES. [2024-11-24 02:22:56,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37522 conditions, 5097 events. 1357/5097 cut-off events. For 126775/126792 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 51834 event pairs, 192 based on Foata normal form. 12/5102 useless extension candidates. Maximal degree in co-relation 37374. Up to 2006 conditions per place. [2024-11-24 02:22:56,633 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 570 selfloop transitions, 322 changer transitions 0/934 dead transitions. [2024-11-24 02:22:56,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 934 transitions, 23061 flow [2024-11-24 02:22:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 02:22:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-24 02:22:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1144 transitions. [2024-11-24 02:22:56,636 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-24 02:22:56,636 INFO L175 Difference]: Start difference. First operand has 433 places, 813 transitions, 19362 flow. Second operand 22 states and 1144 transitions. [2024-11-24 02:22:56,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 934 transitions, 23061 flow [2024-11-24 02:22:58,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 934 transitions, 22604 flow, removed 114 selfloop flow, removed 12 redundant places. [2024-11-24 02:22:58,616 INFO L231 Difference]: Finished difference. Result has 450 places, 840 transitions, 20746 flow [2024-11-24 02:22:58,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=18917, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=20746, PETRI_PLACES=450, PETRI_TRANSITIONS=840} [2024-11-24 02:22:58,617 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 361 predicate places. [2024-11-24 02:22:58,617 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 840 transitions, 20746 flow [2024-11-24 02:22:58,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 47.354838709677416) internal successors, (1468), 31 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:22:58,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:22:58,618 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:22:58,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 02:22:58,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:22:58,819 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:22:58,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:22:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash -681559943, now seen corresponding path program 14 times [2024-11-24 02:22:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:22:58,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901387418] [2024-11-24 02:22:58,820 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:22:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:22:58,838 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:22:58,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:23:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:23:00,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:23:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901387418] [2024-11-24 02:23:00,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901387418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:23:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046119953] [2024-11-24 02:23:00,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 02:23:00,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:23:00,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:23:00,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:23:00,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 02:23:00,352 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 02:23:00,352 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:23:00,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 02:23:00,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:23:00,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:23:00,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:00,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 02:23:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:00,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 02:23:01,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:01,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:01,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:23:01,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-24 02:23:01,156 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-24 02:23:01,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 02:23:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:23:01,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:23:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:23:13,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046119953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:23:13,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:23:13,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 26 [2024-11-24 02:23:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231164054] [2024-11-24 02:23:13,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:23:13,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 02:23:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:23:13,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 02:23:13,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=592, Unknown=2, NotChecked=0, Total=702 [2024-11-24 02:23:18,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:24,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:31,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:36,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:42,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:46,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:51,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:23:56,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:00,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:11,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:15,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:16,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 90 [2024-11-24 02:24:16,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 840 transitions, 20746 flow. Second operand has 27 states, 27 states have (on average 55.25925925925926) internal successors, (1492), 27 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:24:16,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 02:24:16,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 90 [2024-11-24 02:24:16,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 02:24:32,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:36,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:40,258 INFO L124 PetriNetUnfolderBase]: 1193/4790 cut-off events. [2024-11-24 02:24:40,258 INFO L125 PetriNetUnfolderBase]: For 131496/131782 co-relation queries the response was YES. [2024-11-24 02:24:40,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36162 conditions, 4790 events. 1193/4790 cut-off events. For 131496/131782 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 49620 event pairs, 121 based on Foata normal form. 98/4884 useless extension candidates. Maximal degree in co-relation 36006. Up to 1755 conditions per place. [2024-11-24 02:24:40,357 INFO L140 encePairwiseOnDemand]: 69/90 looper letters, 580 selfloop transitions, 332 changer transitions 0/957 dead transitions. [2024-11-24 02:24:40,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 957 transitions, 24758 flow [2024-11-24 02:24:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 02:24:40,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-24 02:24:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1417 transitions. [2024-11-24 02:24:40,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6560185185185186 [2024-11-24 02:24:40,361 INFO L175 Difference]: Start difference. First operand has 450 places, 840 transitions, 20746 flow. Second operand 24 states and 1417 transitions. [2024-11-24 02:24:40,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 957 transitions, 24758 flow [2024-11-24 02:24:42,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 957 transitions, 24543 flow, removed 76 selfloop flow, removed 7 redundant places. [2024-11-24 02:24:42,533 INFO L231 Difference]: Finished difference. Result has 471 places, 870 transitions, 22557 flow [2024-11-24 02:24:42,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=20569, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=22557, PETRI_PLACES=471, PETRI_TRANSITIONS=870} [2024-11-24 02:24:42,534 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 382 predicate places. [2024-11-24 02:24:42,534 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 870 transitions, 22557 flow [2024-11-24 02:24:42,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 55.25925925925926) internal successors, (1492), 27 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:24:42,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:24:42,534 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:24:42,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 02:24:42,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:24:42,735 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 02:24:42,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:24:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1539082871, now seen corresponding path program 15 times [2024-11-24 02:24:42,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:24:42,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120209550] [2024-11-24 02:24:42,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:24:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:24:42,760 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:24:42,760 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:24:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:24:43,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:24:43,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120209550] [2024-11-24 02:24:43,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120209550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:24:43,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341423523] [2024-11-24 02:24:43,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 02:24:43,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:24:43,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:24:43,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:24:43,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_261101c5-f029-47cf-9a35-d575201a00e6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 02:24:44,014 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 02:24:44,014 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:24:44,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-24 02:24:44,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:24:44,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 02:24:44,649 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 19 treesize of output 18 [2024-11-24 02:24:44,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-24 02:24:45,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-24 02:24:45,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 02:24:45,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:24:45,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 02:24:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:24:45,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:24:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 02:24:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341423523] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:24:52,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:24:52,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 11] total 34 [2024-11-24 02:24:52,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761349074] [2024-11-24 02:24:52,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:24:52,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 02:24:52,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:24:52,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 02:24:52,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1035, Unknown=1, NotChecked=0, Total=1190 [2024-11-24 02:24:53,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:24:58,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:02,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:06,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:10,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:14,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:19,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:23,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:27,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:32,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:37,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:39,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:44,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:48,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:52,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:25:56,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:00,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:04,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:08,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:12,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:16,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:20,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:25,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 02:26:29,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]