./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:00:55,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:00:55,543 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:00:55,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:00:55,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:00:55,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:00:55,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:00:55,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:00:55,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:00:55,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:00:55,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:00:55,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:00:55,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:00:55,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:00:55,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:00:55,590 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:00:55,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:00:55,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:00:55,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:00:55,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:00:55,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:00:55,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:00:55,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:00:55,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:00:55,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:00:55,595 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:00:55,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:00:55,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:00:55,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:00:55,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:00:55,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:00:55,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:00:55,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:00:55,596 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_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-27 20:00:55,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:00:55,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:00:55,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:00:55,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:00:55,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:00:55,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-27 20:00:59,531 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/data/ffa9d6a62/d203fb9b09f443a5be7701430b1b3437/FLAG937ed50dd [2024-11-27 20:00:59,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:00:59,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-27 20:01:00,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/data/ffa9d6a62/d203fb9b09f443a5be7701430b1b3437/FLAG937ed50dd [2024-11-27 20:01:00,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/data/ffa9d6a62/d203fb9b09f443a5be7701430b1b3437 [2024-11-27 20:01:00,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:01:00,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:01:00,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:01:00,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:01:00,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:01:00,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0c8ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00, skipping insertion in model container [2024-11-27 20:01:00,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:01:00,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:01:00,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:01:00,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:01:00,914 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:01:00,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00 WrapperNode [2024-11-27 20:01:00,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:01:00,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:01:00,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:01:00,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:01:00,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,973 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-27 20:01:00,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:01:00,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:01:00,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:01:00,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:01:00,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:00,999 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:01:01,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:01:01,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:01:01,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:01:01,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (1/1) ... [2024-11-27 20:01:01,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:01:01,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:01:01,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:01:01,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:01:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-27 20:01:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:01:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:01:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:01:01,098 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:01:01,278 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:01:01,280 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:01:01,789 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:01:01,789 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:01:01,819 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:01:01,819 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:01:01,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:01:01 BoogieIcfgContainer [2024-11-27 20:01:01,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:01:01,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:01:01,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:01:01,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:01:01,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:01:00" (1/3) ... [2024-11-27 20:01:01,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be7eb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:01:01, skipping insertion in model container [2024-11-27 20:01:01,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:00" (2/3) ... [2024-11-27 20:01:01,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be7eb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:01:01, skipping insertion in model container [2024-11-27 20:01:01,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:01:01" (3/3) ... [2024-11-27 20:01:01,830 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-27 20:01:01,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:01:01,847 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.i that has 2 procedures, 161 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-27 20:01:01,848 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:01:01,941 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:01:01,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 164 transitions, 332 flow [2024-11-27 20:01:02,093 INFO L124 PetriNetUnfolderBase]: 4/163 cut-off events. [2024-11-27 20:01:02,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:01:02,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 4/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-27 20:01:02,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 164 transitions, 332 flow [2024-11-27 20:01:02,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 329 flow [2024-11-27 20:01:02,127 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:01:02,144 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;@5782e36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:01:02,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-27 20:01:02,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:01:02,191 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-27 20:01:02,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:01:02,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:02,192 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:02,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:02,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1019482477, now seen corresponding path program 1 times [2024-11-27 20:01:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:02,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099245456] [2024-11-27 20:01:02,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099245456] [2024-11-27 20:01:02,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099245456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:02,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:02,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:01:02,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754294711] [2024-11-27 20:01:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:02,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:01:02,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:02,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:01:02,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:01:02,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 164 [2024-11-27 20:01:02,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-27 20:01:02,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:02,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 164 [2024-11-27 20:01:02,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:03,045 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2024-11-27 20:01:03,045 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:01:03,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 332 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-11-27 20:01:03,049 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-27 20:01:03,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2024-11-27 20:01:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:01:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:01:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-11-27 20:01:03,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9491869918699187 [2024-11-27 20:01:03,080 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 329 flow. Second operand 3 states and 467 transitions. [2024-11-27 20:01:03,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2024-11-27 20:01:03,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:01:03,098 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2024-11-27 20:01:03,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-27 20:01:03,109 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2024-11-27 20:01:03,110 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2024-11-27 20:01:03,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-27 20:01:03,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:03,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:03,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:01:03,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:03,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:03,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2013546856, now seen corresponding path program 1 times [2024-11-27 20:01:03,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:03,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695504356] [2024-11-27 20:01:03,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:03,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695504356] [2024-11-27 20:01:03,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695504356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:01:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235167143] [2024-11-27 20:01:03,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:03,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:01:03,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:01:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:01:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:03,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:01:03,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:01:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:03,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:01:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:03,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235167143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:01:03,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:01:03,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:01:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615054244] [2024-11-27 20:01:03,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:01:03,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:01:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:03,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:01:03,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:01:04,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-27 20:01:04,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-11-27 20:01:04,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:04,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-27 20:01:04,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:04,242 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-27 20:01:04,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:01:04,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 325 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-11-27 20:01:04,246 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-11-27 20:01:04,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2024-11-27 20:01:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:01:04,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 20:01:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2024-11-27 20:01:04,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-27 20:01:04,258 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2024-11-27 20:01:04,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2024-11-27 20:01:04,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:01:04,265 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-11-27 20:01:04,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-11-27 20:01:04,266 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2024-11-27 20:01:04,266 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-11-27 20:01:04,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-11-27 20:01:04,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:04,271 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:04,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:01:04,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:04,477 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:04,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:04,481 INFO L85 PathProgramCache]: Analyzing trace with hash 360812680, now seen corresponding path program 2 times [2024-11-27 20:01:04,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:04,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697219760] [2024-11-27 20:01:04,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:01:04,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:04,541 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:01:04,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:01:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:05,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697219760] [2024-11-27 20:01:05,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697219760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:05,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:01:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924345554] [2024-11-27 20:01:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:05,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:01:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:05,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:01:05,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:01:06,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 164 [2024-11-27 20:01:06,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-11-27 20:01:06,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:06,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 164 [2024-11-27 20:01:06,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:07,073 INFO L124 PetriNetUnfolderBase]: 103/535 cut-off events. [2024-11-27 20:01:07,073 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-27 20:01:07,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 535 events. 103/535 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2279 event pairs, 40 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 688. Up to 184 conditions per place. [2024-11-27 20:01:07,078 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 31 selfloop transitions, 22 changer transitions 0/195 dead transitions. [2024-11-27 20:01:07,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 195 transitions, 544 flow [2024-11-27 20:01:07,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:01:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:01:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2024-11-27 20:01:07,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8902439024390244 [2024-11-27 20:01:07,082 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 876 transitions. [2024-11-27 20:01:07,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 195 transitions, 544 flow [2024-11-27 20:01:07,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 195 transitions, 538 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 20:01:07,096 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 524 flow [2024-11-27 20:01:07,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2024-11-27 20:01:07,100 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2024-11-27 20:01:07,100 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 524 flow [2024-11-27 20:01:07,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-11-27 20:01:07,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:07,101 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:07,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:01:07,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:07,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash 304852855, now seen corresponding path program 1 times [2024-11-27 20:01:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:07,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874603015] [2024-11-27 20:01:07,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:07,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:07,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874603015] [2024-11-27 20:01:07,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874603015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:01:07,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476002389] [2024-11-27 20:01:07,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:07,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:07,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:01:07,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:01:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:01:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:07,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:01:07,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:01:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:07,759 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:01:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476002389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:01:07,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:01:07,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-27 20:01:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684500246] [2024-11-27 20:01:07,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:01:07,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:01:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:07,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:01:07,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:01:07,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-27 20:01:07,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-11-27 20:01:07,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:07,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-27 20:01:07,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:08,410 INFO L124 PetriNetUnfolderBase]: 35/396 cut-off events. [2024-11-27 20:01:08,410 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-11-27 20:01:08,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 396 events. 35/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1163 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 479. Up to 51 conditions per place. [2024-11-27 20:01:08,418 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 18 selfloop transitions, 21 changer transitions 0/205 dead transitions. [2024-11-27 20:01:08,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 205 transitions, 690 flow [2024-11-27 20:01:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:01:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-27 20:01:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2024-11-27 20:01:08,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088269454123112 [2024-11-27 20:01:08,428 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 524 flow. Second operand 21 states and 3130 transitions. [2024-11-27 20:01:08,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 205 transitions, 690 flow [2024-11-27 20:01:08,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 205 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:01:08,437 INFO L231 Difference]: Finished difference. Result has 208 places, 200 transitions, 654 flow [2024-11-27 20:01:08,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=654, PETRI_PLACES=208, PETRI_TRANSITIONS=200} [2024-11-27 20:01:08,438 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 45 predicate places. [2024-11-27 20:01:08,438 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 200 transitions, 654 flow [2024-11-27 20:01:08,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-11-27 20:01:08,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:08,440 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:08,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:01:08,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:08,644 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:08,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:08,646 INFO L85 PathProgramCache]: Analyzing trace with hash 590005687, now seen corresponding path program 2 times [2024-11-27 20:01:08,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:08,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152355896] [2024-11-27 20:01:08,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:01:08,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:08,684 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:01:08,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:01:09,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:09,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152355896] [2024-11-27 20:01:09,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152355896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:09,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:09,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:01:09,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119765847] [2024-11-27 20:01:09,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:09,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:01:09,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:09,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:01:09,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:01:10,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-11-27 20:01:10,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 200 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-11-27 20:01:10,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:10,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-11-27 20:01:10,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:10,691 INFO L124 PetriNetUnfolderBase]: 223/897 cut-off events. [2024-11-27 20:01:10,691 INFO L125 PetriNetUnfolderBase]: For 186/192 co-relation queries the response was YES. [2024-11-27 20:01:10,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 897 events. 223/897 cut-off events. For 186/192 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4710 event pairs, 82 based on Foata normal form. 5/843 useless extension candidates. Maximal degree in co-relation 1571. Up to 407 conditions per place. [2024-11-27 20:01:10,703 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 53 selfloop transitions, 39 changer transitions 5/245 dead transitions. [2024-11-27 20:01:10,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 245 transitions, 968 flow [2024-11-27 20:01:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:01:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:01:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2024-11-27 20:01:10,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8760162601626016 [2024-11-27 20:01:10,708 INFO L175 Difference]: Start difference. First operand has 208 places, 200 transitions, 654 flow. Second operand 6 states and 862 transitions. [2024-11-27 20:01:10,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 245 transitions, 968 flow [2024-11-27 20:01:10,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 944 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-27 20:01:10,722 INFO L231 Difference]: Finished difference. Result has 212 places, 236 transitions, 918 flow [2024-11-27 20:01:10,723 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=212, PETRI_TRANSITIONS=236} [2024-11-27 20:01:10,724 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 49 predicate places. [2024-11-27 20:01:10,724 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 236 transitions, 918 flow [2024-11-27 20:01:10,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-11-27 20:01:10,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:10,725 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:10,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:01:10,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:10,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:10,727 INFO L85 PathProgramCache]: Analyzing trace with hash -372626708, now seen corresponding path program 1 times [2024-11-27 20:01:10,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:10,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936708194] [2024-11-27 20:01:10,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:11,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:11,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936708194] [2024-11-27 20:01:11,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936708194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:01:11,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514732379] [2024-11-27 20:01:11,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:11,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:11,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:01:11,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:01:11,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:01:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:11,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:01:11,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:01:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:11,525 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:01:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514732379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:01:11,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:01:11,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-27 20:01:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441490105] [2024-11-27 20:01:11,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:01:11,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:01:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:11,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:01:11,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:01:11,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-27 20:01:11,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 236 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-11-27 20:01:11,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:11,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-27 20:01:11,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:12,519 INFO L124 PetriNetUnfolderBase]: 123/670 cut-off events. [2024-11-27 20:01:12,519 INFO L125 PetriNetUnfolderBase]: For 316/321 co-relation queries the response was YES. [2024-11-27 20:01:12,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 670 events. 123/670 cut-off events. For 316/321 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2917 event pairs, 15 based on Foata normal form. 3/645 useless extension candidates. Maximal degree in co-relation 1138. Up to 118 conditions per place. [2024-11-27 20:01:12,526 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 21 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2024-11-27 20:01:12,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 253 transitions, 1142 flow [2024-11-27 20:01:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:01:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-27 20:01:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2024-11-27 20:01:12,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2024-11-27 20:01:12,539 INFO L175 Difference]: Start difference. First operand has 212 places, 236 transitions, 918 flow. Second operand 30 states and 4464 transitions. [2024-11-27 20:01:12,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 253 transitions, 1142 flow [2024-11-27 20:01:12,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 253 transitions, 1110 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-27 20:01:12,552 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 1038 flow [2024-11-27 20:01:12,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1038, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-27 20:01:12,554 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 81 predicate places. [2024-11-27 20:01:12,554 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 1038 flow [2024-11-27 20:01:12,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-11-27 20:01:12,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:12,558 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:12,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:01:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:01:12,761 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1418663929, now seen corresponding path program 2 times [2024-11-27 20:01:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925553539] [2024-11-27 20:01:12,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:01:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:12,803 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:01:12,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:01:13,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925553539] [2024-11-27 20:01:13,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925553539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:13,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:13,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:01:13,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613656138] [2024-11-27 20:01:13,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:13,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:01:13,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:13,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:01:13,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:01:13,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 164 [2024-11-27 20:01:13,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2024-11-27 20:01:13,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:13,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 164 [2024-11-27 20:01:13,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:13,915 INFO L124 PetriNetUnfolderBase]: 212/934 cut-off events. [2024-11-27 20:01:13,916 INFO L125 PetriNetUnfolderBase]: For 573/624 co-relation queries the response was YES. [2024-11-27 20:01:13,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 934 events. 212/934 cut-off events. For 573/624 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4943 event pairs, 40 based on Foata normal form. 3/919 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2024-11-27 20:01:13,925 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 72 selfloop transitions, 40 changer transitions 0/285 dead transitions. [2024-11-27 20:01:13,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 1446 flow [2024-11-27 20:01:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:01:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:01:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-11-27 20:01:13,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9054878048780488 [2024-11-27 20:01:13,929 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 1038 flow. Second operand 6 states and 891 transitions. [2024-11-27 20:01:13,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 1446 flow [2024-11-27 20:01:13,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 285 transitions, 1400 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-27 20:01:13,946 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 1360 flow [2024-11-27 20:01:13,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2024-11-27 20:01:13,949 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 73 predicate places. [2024-11-27 20:01:13,949 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 1360 flow [2024-11-27 20:01:13,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2024-11-27 20:01:13,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:13,950 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:13,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:01:13,950 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:13,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -964580980, now seen corresponding path program 1 times [2024-11-27 20:01:13,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:13,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627345166] [2024-11-27 20:01:13,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:13,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:01:14,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:14,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627345166] [2024-11-27 20:01:14,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627345166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:14,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:14,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:01:14,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398136921] [2024-11-27 20:01:14,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:14,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:01:14,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:14,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:01:14,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:01:14,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 164 [2024-11-27 20:01:14,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 1360 flow. Second operand has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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) [2024-11-27 20:01:14,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:14,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 164 [2024-11-27 20:01:14,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:15,410 INFO L124 PetriNetUnfolderBase]: 361/1334 cut-off events. [2024-11-27 20:01:15,410 INFO L125 PetriNetUnfolderBase]: For 1451/1495 co-relation queries the response was YES. [2024-11-27 20:01:15,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1334 events. 361/1334 cut-off events. For 1451/1495 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7928 event pairs, 87 based on Foata normal form. 2/1300 useless extension candidates. Maximal degree in co-relation 3413. Up to 610 conditions per place. [2024-11-27 20:01:15,423 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 100 selfloop transitions, 64 changer transitions 10/338 dead transitions. [2024-11-27 20:01:15,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 338 transitions, 2048 flow [2024-11-27 20:01:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:01:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:01:15,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2024-11-27 20:01:15,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.891260162601626 [2024-11-27 20:01:15,426 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 1360 flow. Second operand 6 states and 877 transitions. [2024-11-27 20:01:15,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 338 transitions, 2048 flow [2024-11-27 20:01:15,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 338 transitions, 2030 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-27 20:01:15,452 INFO L231 Difference]: Finished difference. Result has 246 places, 324 transitions, 1928 flow [2024-11-27 20:01:15,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1928, PETRI_PLACES=246, PETRI_TRANSITIONS=324} [2024-11-27 20:01:15,453 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 83 predicate places. [2024-11-27 20:01:15,453 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 324 transitions, 1928 flow [2024-11-27 20:01:15,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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) [2024-11-27 20:01:15,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:15,454 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:15,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:01:15,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:15,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -343254701, now seen corresponding path program 1 times [2024-11-27 20:01:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:15,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717519964] [2024-11-27 20:01:15,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:15,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:01:29,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:29,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717519964] [2024-11-27 20:01:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717519964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:29,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:29,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 20:01:29,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682548297] [2024-11-27 20:01:29,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:29,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:01:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:29,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:01:29,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:01:34,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-27 20:01:34,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 324 transitions, 1928 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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) [2024-11-27 20:01:34,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:34,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-27 20:01:34,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:36,909 INFO L124 PetriNetUnfolderBase]: 461/1620 cut-off events. [2024-11-27 20:01:36,909 INFO L125 PetriNetUnfolderBase]: For 3067/3191 co-relation queries the response was YES. [2024-11-27 20:01:36,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 1620 events. 461/1620 cut-off events. For 3067/3191 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10153 event pairs, 19 based on Foata normal form. 50/1654 useless extension candidates. Maximal degree in co-relation 4950. Up to 562 conditions per place. [2024-11-27 20:01:36,928 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 190 selfloop transitions, 84 changer transitions 47/474 dead transitions. [2024-11-27 20:01:36,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 474 transitions, 3660 flow [2024-11-27 20:01:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:01:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:01:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2352 transitions. [2024-11-27 20:01:36,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2024-11-27 20:01:36,936 INFO L175 Difference]: Start difference. First operand has 246 places, 324 transitions, 1928 flow. Second operand 18 states and 2352 transitions. [2024-11-27 20:01:36,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 474 transitions, 3660 flow [2024-11-27 20:01:36,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 474 transitions, 3574 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-27 20:01:36,982 INFO L231 Difference]: Finished difference. Result has 271 places, 361 transitions, 2488 flow [2024-11-27 20:01:36,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2488, PETRI_PLACES=271, PETRI_TRANSITIONS=361} [2024-11-27 20:01:36,984 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 108 predicate places. [2024-11-27 20:01:36,984 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 361 transitions, 2488 flow [2024-11-27 20:01:36,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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) [2024-11-27 20:01:36,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:36,987 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:36,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:01:36,987 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:36,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:36,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1925605875, now seen corresponding path program 2 times [2024-11-27 20:01:36,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:36,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458202866] [2024-11-27 20:01:36,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:01:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:37,035 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:01:37,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:01:38,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:38,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458202866] [2024-11-27 20:01:38,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458202866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:38,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:38,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:01:38,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247566253] [2024-11-27 20:01:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:38,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:01:38,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:38,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:01:38,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:01:39,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:01:39,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 361 transitions, 2488 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:01:39,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:39,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:01:39,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:41,186 INFO L124 PetriNetUnfolderBase]: 456/1589 cut-off events. [2024-11-27 20:01:41,187 INFO L125 PetriNetUnfolderBase]: For 4558/4746 co-relation queries the response was YES. [2024-11-27 20:01:41,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 1589 events. 456/1589 cut-off events. For 4558/4746 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9854 event pairs, 88 based on Foata normal form. 105/1677 useless extension candidates. Maximal degree in co-relation 5705. Up to 662 conditions per place. [2024-11-27 20:01:41,205 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 169 selfloop transitions, 83 changer transitions 20/427 dead transitions. [2024-11-27 20:01:41,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 427 transitions, 3521 flow [2024-11-27 20:01:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:01:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 20:01:41,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1261 transitions. [2024-11-27 20:01:41,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8543360433604336 [2024-11-27 20:01:41,210 INFO L175 Difference]: Start difference. First operand has 271 places, 361 transitions, 2488 flow. Second operand 9 states and 1261 transitions. [2024-11-27 20:01:41,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 427 transitions, 3521 flow [2024-11-27 20:01:41,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 427 transitions, 3481 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-27 20:01:41,272 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 2692 flow [2024-11-27 20:01:41,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2692, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2024-11-27 20:01:41,274 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 111 predicate places. [2024-11-27 20:01:41,274 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 2692 flow [2024-11-27 20:01:41,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:01:41,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:41,275 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:41,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:01:41,279 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:41,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash -831736639, now seen corresponding path program 3 times [2024-11-27 20:01:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603534434] [2024-11-27 20:01:41,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:01:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:41,340 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:01:41,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:01:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:42,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603534434] [2024-11-27 20:01:42,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603534434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:42,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:42,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:01:42,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182242426] [2024-11-27 20:01:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:42,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:01:42,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:42,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:01:42,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:01:44,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:01:44,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 2692 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:01:44,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:44,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:01:44,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:46,323 INFO L124 PetriNetUnfolderBase]: 780/2497 cut-off events. [2024-11-27 20:01:46,323 INFO L125 PetriNetUnfolderBase]: For 9716/9932 co-relation queries the response was YES. [2024-11-27 20:01:46,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10447 conditions, 2497 events. 780/2497 cut-off events. For 9716/9932 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18228 event pairs, 58 based on Foata normal form. 79/2543 useless extension candidates. Maximal degree in co-relation 10157. Up to 632 conditions per place. [2024-11-27 20:01:46,349 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 348 selfloop transitions, 95 changer transitions 12/614 dead transitions. [2024-11-27 20:01:46,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 614 transitions, 6195 flow [2024-11-27 20:01:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:01:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:01:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1542 transitions. [2024-11-27 20:01:46,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8547671840354767 [2024-11-27 20:01:46,354 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 2692 flow. Second operand 11 states and 1542 transitions. [2024-11-27 20:01:46,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 614 transitions, 6195 flow [2024-11-27 20:01:46,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 614 transitions, 6045 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-27 20:01:46,443 INFO L231 Difference]: Finished difference. Result has 287 places, 445 transitions, 4100 flow [2024-11-27 20:01:46,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2622, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4100, PETRI_PLACES=287, PETRI_TRANSITIONS=445} [2024-11-27 20:01:46,445 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 124 predicate places. [2024-11-27 20:01:46,445 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 445 transitions, 4100 flow [2024-11-27 20:01:46,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:01:46,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:46,446 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:46,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:01:46,446 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:46,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1639123309, now seen corresponding path program 4 times [2024-11-27 20:01:46,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:46,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260339660] [2024-11-27 20:01:46,448 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:01:46,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:46,517 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:01:46,517 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-27 20:01:48,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:48,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260339660] [2024-11-27 20:01:48,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260339660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:48,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:48,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:01:48,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370236922] [2024-11-27 20:01:48,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:48,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:01:48,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:48,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:01:48,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:01:51,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-27 20:01:51,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 445 transitions, 4100 flow. Second operand has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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) [2024-11-27 20:01:51,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:51,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-27 20:01:51,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:53,545 INFO L124 PetriNetUnfolderBase]: 1242/3829 cut-off events. [2024-11-27 20:01:53,546 INFO L125 PetriNetUnfolderBase]: For 19153/19461 co-relation queries the response was YES. [2024-11-27 20:01:53,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16850 conditions, 3829 events. 1242/3829 cut-off events. For 19153/19461 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 31034 event pairs, 173 based on Foata normal form. 91/3876 useless extension candidates. Maximal degree in co-relation 16553. Up to 1434 conditions per place. [2024-11-27 20:01:53,576 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 454 selfloop transitions, 128 changer transitions 17/750 dead transitions. [2024-11-27 20:01:53,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 750 transitions, 8561 flow [2024-11-27 20:01:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:01:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-27 20:01:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2757 transitions. [2024-11-27 20:01:53,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8005226480836237 [2024-11-27 20:01:53,581 INFO L175 Difference]: Start difference. First operand has 287 places, 445 transitions, 4100 flow. Second operand 21 states and 2757 transitions. [2024-11-27 20:01:53,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 750 transitions, 8561 flow [2024-11-27 20:01:53,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 750 transitions, 8499 flow, removed 31 selfloop flow, removed 0 redundant places. [2024-11-27 20:01:53,751 INFO L231 Difference]: Finished difference. Result has 319 places, 532 transitions, 5869 flow [2024-11-27 20:01:53,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5869, PETRI_PLACES=319, PETRI_TRANSITIONS=532} [2024-11-27 20:01:53,753 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 156 predicate places. [2024-11-27 20:01:53,753 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 532 transitions, 5869 flow [2024-11-27 20:01:53,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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) [2024-11-27 20:01:53,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:53,754 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:53,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:01:53,755 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:53,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1922040869, now seen corresponding path program 5 times [2024-11-27 20:01:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:53,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136767283] [2024-11-27 20:01:53,756 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:01:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:53,803 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:01:53,803 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-27 20:01:55,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:55,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136767283] [2024-11-27 20:01:55,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136767283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:55,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:55,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:01:55,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799812552] [2024-11-27 20:01:55,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:55,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:01:55,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:55,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:01:55,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:01:56,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:01:56,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 532 transitions, 5869 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:01:56,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:56,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:01:56,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:57,662 INFO L124 PetriNetUnfolderBase]: 1127/3696 cut-off events. [2024-11-27 20:01:57,662 INFO L125 PetriNetUnfolderBase]: For 23548/23825 co-relation queries the response was YES. [2024-11-27 20:01:57,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17398 conditions, 3696 events. 1127/3696 cut-off events. For 23548/23825 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 30841 event pairs, 93 based on Foata normal form. 84/3741 useless extension candidates. Maximal degree in co-relation 17089. Up to 1093 conditions per place. [2024-11-27 20:01:57,689 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 352 selfloop transitions, 189 changer transitions 18/723 dead transitions. [2024-11-27 20:01:57,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 723 transitions, 8893 flow [2024-11-27 20:01:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:01:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:01:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1432 transitions. [2024-11-27 20:01:57,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8731707317073171 [2024-11-27 20:01:57,691 INFO L175 Difference]: Start difference. First operand has 319 places, 532 transitions, 5869 flow. Second operand 10 states and 1432 transitions. [2024-11-27 20:01:57,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 723 transitions, 8893 flow [2024-11-27 20:01:57,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 723 transitions, 8696 flow, removed 89 selfloop flow, removed 6 redundant places. [2024-11-27 20:01:57,846 INFO L231 Difference]: Finished difference. Result has 327 places, 562 transitions, 6856 flow [2024-11-27 20:01:57,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=5676, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6856, PETRI_PLACES=327, PETRI_TRANSITIONS=562} [2024-11-27 20:01:57,847 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 164 predicate places. [2024-11-27 20:01:57,847 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 562 transitions, 6856 flow [2024-11-27 20:01:57,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:01:57,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:57,848 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:57,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:01:57,848 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:01:57,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:57,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1721954273, now seen corresponding path program 6 times [2024-11-27 20:01:57,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:57,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749307665] [2024-11-27 20:01:57,850 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:01:57,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:57,881 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:01:57,881 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:01:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-27 20:01:58,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749307665] [2024-11-27 20:01:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749307665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:58,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:58,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:01:58,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888251444] [2024-11-27 20:01:58,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:58,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:01:58,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:58,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:01:58,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:02:00,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:02:00,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 562 transitions, 6856 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:02:00,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:00,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:02:00,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:02,183 INFO L124 PetriNetUnfolderBase]: 1240/3869 cut-off events. [2024-11-27 20:02:02,183 INFO L125 PetriNetUnfolderBase]: For 30180/30514 co-relation queries the response was YES. [2024-11-27 20:02:02,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19388 conditions, 3869 events. 1240/3869 cut-off events. For 30180/30514 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32042 event pairs, 174 based on Foata normal form. 196/4020 useless extension candidates. Maximal degree in co-relation 19073. Up to 1768 conditions per place. [2024-11-27 20:02:02,221 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 234 selfloop transitions, 216 changer transitions 25/635 dead transitions. [2024-11-27 20:02:02,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 635 transitions, 8622 flow [2024-11-27 20:02:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:02:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 20:02:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-11-27 20:02:02,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8389227642276422 [2024-11-27 20:02:02,224 INFO L175 Difference]: Start difference. First operand has 327 places, 562 transitions, 6856 flow. Second operand 12 states and 1651 transitions. [2024-11-27 20:02:02,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 635 transitions, 8622 flow [2024-11-27 20:02:02,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 635 transitions, 8415 flow, removed 99 selfloop flow, removed 1 redundant places. [2024-11-27 20:02:02,553 INFO L231 Difference]: Finished difference. Result has 342 places, 570 transitions, 7303 flow [2024-11-27 20:02:02,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7303, PETRI_PLACES=342, PETRI_TRANSITIONS=570} [2024-11-27 20:02:02,556 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 179 predicate places. [2024-11-27 20:02:02,556 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 570 transitions, 7303 flow [2024-11-27 20:02:02,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:02:02,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:02,557 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:02:02,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:02:02,557 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:02:02,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:02,559 INFO L85 PathProgramCache]: Analyzing trace with hash 712638541, now seen corresponding path program 7 times [2024-11-27 20:02:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650589291] [2024-11-27 20:02:02,560 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:02:02,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:02:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:02:19,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650589291] [2024-11-27 20:02:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650589291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:02:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916061492] [2024-11-27 20:02:19,298 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:02:19,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:02:19,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:02:19,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:02:19,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:02:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:02:19,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-27 20:02:19,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:02:19,930 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 16 treesize of output 12 [2024-11-27 20:02:20,217 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:02:20,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:02:20,308 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 [2024-11-27 20:02:20,402 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 [2024-11-27 20:02:20,518 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 [2024-11-27 20:02:20,654 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 [2024-11-27 20:02:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:21,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:02:21,005 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 65 treesize of output 73 [2024-11-27 20:02:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 20:02:21,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:02:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:02:23,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916061492] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:02:23,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:02:23,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 23] total 45 [2024-11-27 20:02:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592868407] [2024-11-27 20:02:23,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:23,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:02:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:23,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:02:23,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2024-11-27 20:02:27,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-11-27 20:02:27,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 570 transitions, 7303 flow. Second operand has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-11-27 20:02:27,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:27,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-11-27 20:02:27,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:30,827 INFO L124 PetriNetUnfolderBase]: 1215/3913 cut-off events. [2024-11-27 20:02:30,828 INFO L125 PetriNetUnfolderBase]: For 31612/31824 co-relation queries the response was YES. [2024-11-27 20:02:30,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19680 conditions, 3913 events. 1215/3913 cut-off events. For 31612/31824 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32714 event pairs, 85 based on Foata normal form. 93/3971 useless extension candidates. Maximal degree in co-relation 19422. Up to 1261 conditions per place. [2024-11-27 20:02:30,867 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 470 selfloop transitions, 123 changer transitions 34/782 dead transitions. [2024-11-27 20:02:30,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 782 transitions, 10622 flow [2024-11-27 20:02:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:02:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-27 20:02:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1809 transitions. [2024-11-27 20:02:30,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8484990619136961 [2024-11-27 20:02:30,871 INFO L175 Difference]: Start difference. First operand has 342 places, 570 transitions, 7303 flow. Second operand 13 states and 1809 transitions. [2024-11-27 20:02:30,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 782 transitions, 10622 flow [2024-11-27 20:02:31,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 782 transitions, 10170 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-11-27 20:02:31,261 INFO L231 Difference]: Finished difference. Result has 354 places, 592 transitions, 7613 flow [2024-11-27 20:02:31,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6909, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7613, PETRI_PLACES=354, PETRI_TRANSITIONS=592} [2024-11-27 20:02:31,263 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 191 predicate places. [2024-11-27 20:02:31,263 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 592 transitions, 7613 flow [2024-11-27 20:02:31,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-11-27 20:02:31,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:31,264 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:02:31,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:02:31,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:02:31,465 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:02:31,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash -766963319, now seen corresponding path program 8 times [2024-11-27 20:02:31,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:31,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527011957] [2024-11-27 20:02:31,466 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:02:31,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:31,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:02:31,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:02:36,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527011957] [2024-11-27 20:02:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527011957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:36,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:36,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:02:36,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582526032] [2024-11-27 20:02:36,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:02:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:36,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:02:36,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:02:38,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:02:38,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 592 transitions, 7613 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:02:38,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:38,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:02:38,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:40,185 INFO L124 PetriNetUnfolderBase]: 1141/3766 cut-off events. [2024-11-27 20:02:40,185 INFO L125 PetriNetUnfolderBase]: For 34094/34410 co-relation queries the response was YES. [2024-11-27 20:02:40,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19458 conditions, 3766 events. 1141/3766 cut-off events. For 34094/34410 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 31757 event pairs, 144 based on Foata normal form. 142/3859 useless extension candidates. Maximal degree in co-relation 19299. Up to 1558 conditions per place. [2024-11-27 20:02:40,217 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 257 selfloop transitions, 219 changer transitions 11/651 dead transitions. [2024-11-27 20:02:40,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 651 transitions, 9383 flow [2024-11-27 20:02:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:02:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-27 20:02:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1916 transitions. [2024-11-27 20:02:40,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344947735191638 [2024-11-27 20:02:40,220 INFO L175 Difference]: Start difference. First operand has 354 places, 592 transitions, 7613 flow. Second operand 14 states and 1916 transitions. [2024-11-27 20:02:40,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 651 transitions, 9383 flow [2024-11-27 20:02:40,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 651 transitions, 9225 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-11-27 20:02:40,462 INFO L231 Difference]: Finished difference. Result has 370 places, 612 transitions, 8388 flow [2024-11-27 20:02:40,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=7475, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8388, PETRI_PLACES=370, PETRI_TRANSITIONS=612} [2024-11-27 20:02:40,463 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 207 predicate places. [2024-11-27 20:02:40,463 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 612 transitions, 8388 flow [2024-11-27 20:02:40,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:02:40,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:40,464 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:02:40,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:02:40,464 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:02:40,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 62474829, now seen corresponding path program 9 times [2024-11-27 20:02:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989203642] [2024-11-27 20:02:40,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:02:40,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:40,490 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:02:40,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:02:41,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:41,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989203642] [2024-11-27 20:02:41,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989203642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:41,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:41,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:02:41,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388552697] [2024-11-27 20:02:41,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:41,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:02:41,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:41,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:02:41,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:02:43,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:02:43,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 612 transitions, 8388 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:02:43,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:43,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:02:43,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:45,640 INFO L124 PetriNetUnfolderBase]: 1236/3899 cut-off events. [2024-11-27 20:02:45,640 INFO L125 PetriNetUnfolderBase]: For 38226/38503 co-relation queries the response was YES. [2024-11-27 20:02:45,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20891 conditions, 3899 events. 1236/3899 cut-off events. For 38226/38503 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 32493 event pairs, 138 based on Foata normal form. 110/3968 useless extension candidates. Maximal degree in co-relation 20716. Up to 1320 conditions per place. [2024-11-27 20:02:45,671 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 452 selfloop transitions, 153 changer transitions 24/789 dead transitions. [2024-11-27 20:02:45,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 789 transitions, 11458 flow [2024-11-27 20:02:45,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:02:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:02:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1553 transitions. [2024-11-27 20:02:45,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8608647450110865 [2024-11-27 20:02:45,674 INFO L175 Difference]: Start difference. First operand has 370 places, 612 transitions, 8388 flow. Second operand 11 states and 1553 transitions. [2024-11-27 20:02:45,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 789 transitions, 11458 flow [2024-11-27 20:02:45,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 789 transitions, 11165 flow, removed 77 selfloop flow, removed 4 redundant places. [2024-11-27 20:02:45,928 INFO L231 Difference]: Finished difference. Result has 382 places, 626 transitions, 8824 flow [2024-11-27 20:02:45,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=8116, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8824, PETRI_PLACES=382, PETRI_TRANSITIONS=626} [2024-11-27 20:02:45,929 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 219 predicate places. [2024-11-27 20:02:45,929 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 626 transitions, 8824 flow [2024-11-27 20:02:45,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:02:45,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:45,929 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:02:45,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:02:45,930 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:02:45,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:45,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1475036883, now seen corresponding path program 10 times [2024-11-27 20:02:45,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:45,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346218503] [2024-11-27 20:02:45,932 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:02:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:46,066 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:02:46,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:02:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:48,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346218503] [2024-11-27 20:02:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346218503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:02:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391170088] [2024-11-27 20:02:48,547 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:02:48,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:02:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:02:48,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:02:48,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:02:48,721 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:02:48,721 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:48,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 20:02:48,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:02:49,169 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 16 treesize of output 12 [2024-11-27 20:02:49,229 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 [2024-11-27 20:02:49,442 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:02:49,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:02:49,550 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 [2024-11-27 20:02:49,665 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 [2024-11-27 20:02:49,785 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 [2024-11-27 20:02:50,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:50,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:02:50,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:02:50,052 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 75 treesize of output 60 [2024-11-27 20:02:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:02:50,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:02:51,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-27 20:02:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:02:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391170088] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:02:51,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:02:51,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15, 25] total 46 [2024-11-27 20:02:51,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191967938] [2024-11-27 20:02:51,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:51,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:02:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:51,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:02:51,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1968, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:03:02,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:03:02,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 626 transitions, 8824 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:03:02,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:03:02,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:03:02,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:03:07,847 INFO L124 PetriNetUnfolderBase]: 1268/4094 cut-off events. [2024-11-27 20:03:07,847 INFO L125 PetriNetUnfolderBase]: For 44902/45105 co-relation queries the response was YES. [2024-11-27 20:03:07,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22596 conditions, 4094 events. 1268/4094 cut-off events. For 44902/45105 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 34720 event pairs, 141 based on Foata normal form. 90/4137 useless extension candidates. Maximal degree in co-relation 22260. Up to 1587 conditions per place. [2024-11-27 20:03:07,883 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 322 selfloop transitions, 293 changer transitions 12/785 dead transitions. [2024-11-27 20:03:07,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 785 transitions, 12569 flow [2024-11-27 20:03:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:03:07,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-27 20:03:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1783 transitions. [2024-11-27 20:03:07,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8363039399624765 [2024-11-27 20:03:07,885 INFO L175 Difference]: Start difference. First operand has 382 places, 626 transitions, 8824 flow. Second operand 13 states and 1783 transitions. [2024-11-27 20:03:07,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 785 transitions, 12569 flow [2024-11-27 20:03:08,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 785 transitions, 12088 flow, removed 41 selfloop flow, removed 5 redundant places. [2024-11-27 20:03:08,206 INFO L231 Difference]: Finished difference. Result has 396 places, 695 transitions, 10714 flow [2024-11-27 20:03:08,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=8438, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10714, PETRI_PLACES=396, PETRI_TRANSITIONS=695} [2024-11-27 20:03:08,207 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 233 predicate places. [2024-11-27 20:03:08,207 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 695 transitions, 10714 flow [2024-11-27 20:03:08,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:03:08,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:03:08,207 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:08,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:03:08,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:03:08,408 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:03:08,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1096866395, now seen corresponding path program 11 times [2024-11-27 20:03:08,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:08,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309258177] [2024-11-27 20:03:08,410 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:03:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:08,450 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:03:08,450 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:03:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:03:09,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:09,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309258177] [2024-11-27 20:03:09,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309258177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:09,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:03:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571068140] [2024-11-27 20:03:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:09,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:03:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:09,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:03:09,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:03:11,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:03:11,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 695 transitions, 10714 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:03:11,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:03:11,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:03:11,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:03:13,109 INFO L124 PetriNetUnfolderBase]: 1212/3948 cut-off events. [2024-11-27 20:03:13,110 INFO L125 PetriNetUnfolderBase]: For 47044/47417 co-relation queries the response was YES. [2024-11-27 20:03:13,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22626 conditions, 3948 events. 1212/3948 cut-off events. For 47044/47417 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33470 event pairs, 149 based on Foata normal form. 214/4103 useless extension candidates. Maximal degree in co-relation 22432. Up to 1673 conditions per place. [2024-11-27 20:03:13,145 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 293 selfloop transitions, 266 changer transitions 9/733 dead transitions. [2024-11-27 20:03:13,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 733 transitions, 12311 flow [2024-11-27 20:03:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:03:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:03:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1528 transitions. [2024-11-27 20:03:13,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8470066518847007 [2024-11-27 20:03:13,149 INFO L175 Difference]: Start difference. First operand has 396 places, 695 transitions, 10714 flow. Second operand 11 states and 1528 transitions. [2024-11-27 20:03:13,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 733 transitions, 12311 flow [2024-11-27 20:03:13,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 733 transitions, 12158 flow, removed 72 selfloop flow, removed 1 redundant places. [2024-11-27 20:03:13,547 INFO L231 Difference]: Finished difference. Result has 407 places, 697 transitions, 11142 flow [2024-11-27 20:03:13,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=10561, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11142, PETRI_PLACES=407, PETRI_TRANSITIONS=697} [2024-11-27 20:03:13,548 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 244 predicate places. [2024-11-27 20:03:13,548 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 697 transitions, 11142 flow [2024-11-27 20:03:13,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:03:13,548 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:03:13,548 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:13,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:03:13,549 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:03:13,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:13,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1535570590, now seen corresponding path program 1 times [2024-11-27 20:03:13,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:13,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013368608] [2024-11-27 20:03:13,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:13,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:03:19,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013368608] [2024-11-27 20:03:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013368608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994976477] [2024-11-27 20:03:19,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:19,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:19,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:19,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:19,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:03:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:19,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-27 20:03:19,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:20,325 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 16 treesize of output 12 [2024-11-27 20:03:20,562 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:03:20,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:03:20,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:03:20,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-27 20:03:20,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-27 20:03:21,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-27 20:03:21,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:21,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:03:21,221 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 64 treesize of output 47 [2024-11-27 20:03:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:03:21,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:03:23,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994976477] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:23,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:03:23,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 21] total 39 [2024-11-27 20:03:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782314927] [2024-11-27 20:03:23,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:23,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:03:23,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:23,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:03:23,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1369, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 20:03:29,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2024-11-27 20:03:29,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 697 transitions, 11142 flow. Second operand has 11 states, 11 states have (on average 134.45454545454547) internal successors, (1479), 11 states have internal predecessors, (1479), 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) [2024-11-27 20:03:29,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:03:29,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2024-11-27 20:03:29,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:03:32,286 INFO L124 PetriNetUnfolderBase]: 1034/3571 cut-off events. [2024-11-27 20:03:32,286 INFO L125 PetriNetUnfolderBase]: For 49752/50074 co-relation queries the response was YES. [2024-11-27 20:03:32,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21194 conditions, 3571 events. 1034/3571 cut-off events. For 49752/50074 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 30244 event pairs, 60 based on Foata normal form. 56/3603 useless extension candidates. Maximal degree in co-relation 20849. Up to 858 conditions per place. [2024-11-27 20:03:32,316 INFO L140 encePairwiseOnDemand]: 147/164 looper letters, 455 selfloop transitions, 156 changer transitions 36/863 dead transitions. [2024-11-27 20:03:32,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 863 transitions, 14316 flow [2024-11-27 20:03:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:03:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:03:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2530 transitions. [2024-11-27 20:03:32,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8570460704607046 [2024-11-27 20:03:32,319 INFO L175 Difference]: Start difference. First operand has 407 places, 697 transitions, 11142 flow. Second operand 18 states and 2530 transitions. [2024-11-27 20:03:32,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 863 transitions, 14316 flow [2024-11-27 20:03:32,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 863 transitions, 13917 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-27 20:03:32,584 INFO L231 Difference]: Finished difference. Result has 428 places, 748 transitions, 12103 flow [2024-11-27 20:03:32,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=10797, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12103, PETRI_PLACES=428, PETRI_TRANSITIONS=748} [2024-11-27 20:03:32,585 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 265 predicate places. [2024-11-27 20:03:32,585 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 748 transitions, 12103 flow [2024-11-27 20:03:32,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.45454545454547) internal successors, (1479), 11 states have internal predecessors, (1479), 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) [2024-11-27 20:03:32,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:03:32,586 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:32,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:03:32,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:32,786 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:03:32,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1172037051, now seen corresponding path program 12 times [2024-11-27 20:03:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547977471] [2024-11-27 20:03:32,788 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:03:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:32,810 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:03:32,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:03:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:03:33,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:33,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547977471] [2024-11-27 20:03:33,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547977471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:33,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:33,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:03:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229747270] [2024-11-27 20:03:33,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:33,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:03:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:33,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:03:33,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:03:35,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:03:35,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 748 transitions, 12103 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:03:35,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:03:35,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:03:35,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:03:36,869 INFO L124 PetriNetUnfolderBase]: 1205/3965 cut-off events. [2024-11-27 20:03:36,869 INFO L125 PetriNetUnfolderBase]: For 52694/53079 co-relation queries the response was YES. [2024-11-27 20:03:36,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23831 conditions, 3965 events. 1205/3965 cut-off events. For 52694/53079 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 33704 event pairs, 151 based on Foata normal form. 158/4064 useless extension candidates. Maximal degree in co-relation 23613. Up to 1673 conditions per place. [2024-11-27 20:03:36,907 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 332 selfloop transitions, 281 changer transitions 9/791 dead transitions. [2024-11-27 20:03:36,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 791 transitions, 13972 flow [2024-11-27 20:03:36,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:03:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-27 20:03:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1788 transitions. [2024-11-27 20:03:36,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386491557223265 [2024-11-27 20:03:36,910 INFO L175 Difference]: Start difference. First operand has 428 places, 748 transitions, 12103 flow. Second operand 13 states and 1788 transitions. [2024-11-27 20:03:36,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 791 transitions, 13972 flow [2024-11-27 20:03:37,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 791 transitions, 13876 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-11-27 20:03:37,392 INFO L231 Difference]: Finished difference. Result has 433 places, 759 transitions, 12852 flow [2024-11-27 20:03:37,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=12015, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12852, PETRI_PLACES=433, PETRI_TRANSITIONS=759} [2024-11-27 20:03:37,393 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 270 predicate places. [2024-11-27 20:03:37,393 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 759 transitions, 12852 flow [2024-11-27 20:03:37,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:03:37,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:03:37,393 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:37,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:03:37,393 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:03:37,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:37,395 INFO L85 PathProgramCache]: Analyzing trace with hash 949366115, now seen corresponding path program 13 times [2024-11-27 20:03:37,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:37,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040255384] [2024-11-27 20:03:37,395 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:03:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:03:44,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:44,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040255384] [2024-11-27 20:03:44,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040255384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:44,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792441592] [2024-11-27 20:03:44,857 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:03:44,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:44,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:44,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:44,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:03:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:45,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-27 20:03:45,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:45,481 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 16 treesize of output 12 [2024-11-27 20:03:45,664 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 [2024-11-27 20:03:45,733 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 [2024-11-27 20:03:45,820 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 [2024-11-27 20:03:45,924 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:03:45,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:03:46,007 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 [2024-11-27 20:03:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:46,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:46,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:03:46,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:03:46,220 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 65 treesize of output 73 [2024-11-27 20:03:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:03:46,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:47,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-27 20:03:47,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-27 20:03:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:03:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792441592] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:47,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:03:47,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 25] total 46 [2024-11-27 20:03:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11327986] [2024-11-27 20:03:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:47,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:03:47,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:47,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:03:47,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1974, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:03:51,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-11-27 20:03:51,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 759 transitions, 12852 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-11-27 20:03:51,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:03:51,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-11-27 20:03:51,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:03:55,780 INFO L124 PetriNetUnfolderBase]: 1393/4453 cut-off events. [2024-11-27 20:03:55,780 INFO L125 PetriNetUnfolderBase]: For 63682/63915 co-relation queries the response was YES. [2024-11-27 20:03:55,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27239 conditions, 4453 events. 1393/4453 cut-off events. For 63682/63915 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 37684 event pairs, 94 based on Foata normal form. 115/4522 useless extension candidates. Maximal degree in co-relation 26884. Up to 1118 conditions per place. [2024-11-27 20:03:55,817 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 470 selfloop transitions, 410 changer transitions 16/1051 dead transitions. [2024-11-27 20:03:55,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1051 transitions, 18716 flow [2024-11-27 20:03:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:03:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:03:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2494 transitions. [2024-11-27 20:03:55,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8448509485094851 [2024-11-27 20:03:55,820 INFO L175 Difference]: Start difference. First operand has 433 places, 759 transitions, 12852 flow. Second operand 18 states and 2494 transitions. [2024-11-27 20:03:55,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1051 transitions, 18716 flow [2024-11-27 20:03:56,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 1051 transitions, 18204 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-11-27 20:03:56,261 INFO L231 Difference]: Finished difference. Result has 456 places, 837 transitions, 15206 flow [2024-11-27 20:03:56,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=12417, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=336, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15206, PETRI_PLACES=456, PETRI_TRANSITIONS=837} [2024-11-27 20:03:56,262 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 293 predicate places. [2024-11-27 20:03:56,262 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 837 transitions, 15206 flow [2024-11-27 20:03:56,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-11-27 20:03:56,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:03:56,263 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:56,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:56,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:56,463 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:03:56,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash 196485581, now seen corresponding path program 14 times [2024-11-27 20:03:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:56,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981171171] [2024-11-27 20:03:56,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:03:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:56,496 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:03:56,496 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:03:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:03:59,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:59,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981171171] [2024-11-27 20:03:59,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981171171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:59,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:59,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:03:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608827562] [2024-11-27 20:03:59,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:59,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:03:59,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:59,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:03:59,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:04:01,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:04:01,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 837 transitions, 15206 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:04:01,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:01,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:04:01,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:03,202 INFO L124 PetriNetUnfolderBase]: 1283/4232 cut-off events. [2024-11-27 20:04:03,202 INFO L125 PetriNetUnfolderBase]: For 70928/71292 co-relation queries the response was YES. [2024-11-27 20:04:03,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27643 conditions, 4232 events. 1283/4232 cut-off events. For 70928/71292 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 36250 event pairs, 172 based on Foata normal form. 164/4335 useless extension candidates. Maximal degree in co-relation 27337. Up to 1794 conditions per place. [2024-11-27 20:04:03,243 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 378 selfloop transitions, 301 changer transitions 9/872 dead transitions. [2024-11-27 20:04:03,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 872 transitions, 17080 flow [2024-11-27 20:04:03,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:04:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:04:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1390 transitions. [2024-11-27 20:04:03,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8475609756097561 [2024-11-27 20:04:03,245 INFO L175 Difference]: Start difference. First operand has 456 places, 837 transitions, 15206 flow. Second operand 10 states and 1390 transitions. [2024-11-27 20:04:03,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 872 transitions, 17080 flow [2024-11-27 20:04:03,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 872 transitions, 16809 flow, removed 65 selfloop flow, removed 4 redundant places. [2024-11-27 20:04:03,718 INFO L231 Difference]: Finished difference. Result has 465 places, 841 transitions, 15710 flow [2024-11-27 20:04:03,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=14939, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15710, PETRI_PLACES=465, PETRI_TRANSITIONS=841} [2024-11-27 20:04:03,719 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 302 predicate places. [2024-11-27 20:04:03,719 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 841 transitions, 15710 flow [2024-11-27 20:04:03,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:04:03,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:03,719 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:03,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:04:03,720 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:04:03,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:03,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1925718945, now seen corresponding path program 15 times [2024-11-27 20:04:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:03,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064871522] [2024-11-27 20:04:03,721 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:03,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:03,749 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:04:03,749 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:04:06,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064871522] [2024-11-27 20:04:06,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064871522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:06,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:06,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:04:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555528996] [2024-11-27 20:04:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:06,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:04:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:06,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:04:06,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:04:08,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:04:08,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 841 transitions, 15710 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:04:08,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:08,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:04:08,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:10,563 INFO L124 PetriNetUnfolderBase]: 1283/4228 cut-off events. [2024-11-27 20:04:10,563 INFO L125 PetriNetUnfolderBase]: For 75321/75677 co-relation queries the response was YES. [2024-11-27 20:04:10,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28216 conditions, 4228 events. 1283/4228 cut-off events. For 75321/75677 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 36241 event pairs, 161 based on Foata normal form. 122/4288 useless extension candidates. Maximal degree in co-relation 27909. Up to 1779 conditions per place. [2024-11-27 20:04:10,601 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 388 selfloop transitions, 304 changer transitions 11/887 dead transitions. [2024-11-27 20:04:10,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 887 transitions, 17929 flow [2024-11-27 20:04:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:04:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-27 20:04:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2041 transitions. [2024-11-27 20:04:10,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8296747967479675 [2024-11-27 20:04:10,604 INFO L175 Difference]: Start difference. First operand has 465 places, 841 transitions, 15710 flow. Second operand 15 states and 2041 transitions. [2024-11-27 20:04:10,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 887 transitions, 17929 flow [2024-11-27 20:04:11,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 887 transitions, 17348 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-27 20:04:11,185 INFO L231 Difference]: Finished difference. Result has 478 places, 853 transitions, 16113 flow [2024-11-27 20:04:11,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=15149, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16113, PETRI_PLACES=478, PETRI_TRANSITIONS=853} [2024-11-27 20:04:11,186 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 315 predicate places. [2024-11-27 20:04:11,186 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 853 transitions, 16113 flow [2024-11-27 20:04:11,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:04:11,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:11,187 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:11,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 20:04:11,187 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:04:11,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash 841796365, now seen corresponding path program 16 times [2024-11-27 20:04:11,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71412405] [2024-11-27 20:04:11,190 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:04:11,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:11,218 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:04:11,218 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:04:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71412405] [2024-11-27 20:04:12,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71412405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431436809] [2024-11-27 20:04:12,971 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:04:12,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:12,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:12,973 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:12,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:04:13,150 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:04:13,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:13,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 20:04:13,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:13,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-27 20:04:13,598 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 [2024-11-27 20:04:13,777 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 [2024-11-27 20:04:13,870 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:04:13,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:04:13,959 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 [2024-11-27 20:04:14,062 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 [2024-11-27 20:04:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:14,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:14,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:14,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:14,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:04:14,298 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 75 treesize of output 60 [2024-11-27 20:04:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:04:14,319 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:15,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-27 20:04:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:04:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431436809] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:04:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15, 25] total 46 [2024-11-27 20:04:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571154586] [2024-11-27 20:04:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:15,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:15,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:15,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1967, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:04:24,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:04:24,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 853 transitions, 16113 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:04:24,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:24,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:04:24,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:29,060 INFO L124 PetriNetUnfolderBase]: 1367/4377 cut-off events. [2024-11-27 20:04:29,061 INFO L125 PetriNetUnfolderBase]: For 78360/78615 co-relation queries the response was YES. [2024-11-27 20:04:29,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29467 conditions, 4377 events. 1367/4377 cut-off events. For 78360/78615 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 37395 event pairs, 156 based on Foata normal form. 116/4428 useless extension candidates. Maximal degree in co-relation 29094. Up to 1649 conditions per place. [2024-11-27 20:04:29,109 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 384 selfloop transitions, 383 changer transitions 10/939 dead transitions. [2024-11-27 20:04:29,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 939 transitions, 19020 flow [2024-11-27 20:04:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:04:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-27 20:04:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1913 transitions. [2024-11-27 20:04:29,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8331881533101045 [2024-11-27 20:04:29,111 INFO L175 Difference]: Start difference. First operand has 478 places, 853 transitions, 16113 flow. Second operand 14 states and 1913 transitions. [2024-11-27 20:04:29,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 939 transitions, 19020 flow [2024-11-27 20:04:29,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 939 transitions, 18451 flow, removed 122 selfloop flow, removed 4 redundant places. [2024-11-27 20:04:29,876 INFO L231 Difference]: Finished difference. Result has 491 places, 867 transitions, 16837 flow [2024-11-27 20:04:29,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=15625, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16837, PETRI_PLACES=491, PETRI_TRANSITIONS=867} [2024-11-27 20:04:29,877 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 328 predicate places. [2024-11-27 20:04:29,877 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 867 transitions, 16837 flow [2024-11-27 20:04:29,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:04:29,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:29,878 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:29,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:04:30,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:04:30,078 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:04:30,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:30,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1414024229, now seen corresponding path program 17 times [2024-11-27 20:04:30,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316271345] [2024-11-27 20:04:30,080 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:04:30,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:30,135 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:04:30,136 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 237 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:04:38,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316271345] [2024-11-27 20:04:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316271345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:38,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723698992] [2024-11-27 20:04:38,639 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:04:38,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:38,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:38,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:38,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:04:38,903 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:04:38,903 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:38,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-27 20:04:38,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:38,939 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 16 treesize of output 12 [2024-11-27 20:04:39,025 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 [2024-11-27 20:04:39,176 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 [2024-11-27 20:04:39,272 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 [2024-11-27 20:04:39,377 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:04:39,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:04:39,517 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 [2024-11-27 20:04:39,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:04:39,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:04:39,677 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 65 treesize of output 73 [2024-11-27 20:04:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-27 20:04:39,877 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:41,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-27 20:04:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:04:41,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723698992] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:41,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:04:41,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [35, 19] total 52 [2024-11-27 20:04:41,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029059544] [2024-11-27 20:04:41,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:41,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:41,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:41,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:41,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2544, Unknown=0, NotChecked=0, Total=2756 [2024-11-27 20:04:46,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-11-27 20:04:46,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 867 transitions, 16837 flow. Second operand has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-11-27 20:04:46,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:46,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-11-27 20:04:46,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:51,318 INFO L124 PetriNetUnfolderBase]: 1435/4616 cut-off events. [2024-11-27 20:04:51,318 INFO L125 PetriNetUnfolderBase]: For 86951/87196 co-relation queries the response was YES. [2024-11-27 20:04:51,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31361 conditions, 4616 events. 1435/4616 cut-off events. For 86951/87196 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 39787 event pairs, 157 based on Foata normal form. 117/4664 useless extension candidates. Maximal degree in co-relation 30985. Up to 1784 conditions per place. [2024-11-27 20:04:51,368 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 443 selfloop transitions, 417 changer transitions 15/1030 dead transitions. [2024-11-27 20:04:51,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1030 transitions, 21771 flow [2024-11-27 20:04:51,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:04:51,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:04:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2410 transitions. [2024-11-27 20:04:51,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8163956639566395 [2024-11-27 20:04:51,372 INFO L175 Difference]: Start difference. First operand has 491 places, 867 transitions, 16837 flow. Second operand 18 states and 2410 transitions. [2024-11-27 20:04:51,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1030 transitions, 21771 flow [2024-11-27 20:04:52,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 1030 transitions, 21195 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-27 20:04:52,043 INFO L231 Difference]: Finished difference. Result has 511 places, 930 transitions, 18910 flow [2024-11-27 20:04:52,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=16307, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=357, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18910, PETRI_PLACES=511, PETRI_TRANSITIONS=930} [2024-11-27 20:04:52,045 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 348 predicate places. [2024-11-27 20:04:52,045 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 930 transitions, 18910 flow [2024-11-27 20:04:52,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-11-27 20:04:52,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:52,045 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:52,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:04:52,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:04:52,246 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:04:52,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash -363160435, now seen corresponding path program 18 times [2024-11-27 20:04:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:52,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202642611] [2024-11-27 20:04:52,248 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:04:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:52,270 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:04:52,270 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:04:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202642611] [2024-11-27 20:04:53,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202642611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:53,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:53,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:04:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547533545] [2024-11-27 20:04:53,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:53,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:04:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:53,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:04:53,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:04:54,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:04:54,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 930 transitions, 18910 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:04:54,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:54,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:04:54,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:57,737 INFO L124 PetriNetUnfolderBase]: 1395/4506 cut-off events. [2024-11-27 20:04:57,737 INFO L125 PetriNetUnfolderBase]: For 92476/92824 co-relation queries the response was YES. [2024-11-27 20:04:57,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31421 conditions, 4506 events. 1395/4506 cut-off events. For 92476/92824 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38857 event pairs, 188 based on Foata normal form. 123/4568 useless extension candidates. Maximal degree in co-relation 31045. Up to 2009 conditions per place. [2024-11-27 20:04:57,831 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 414 selfloop transitions, 353 changer transitions 14/973 dead transitions. [2024-11-27 20:04:57,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 973 transitions, 21104 flow [2024-11-27 20:04:57,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:04:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-27 20:04:57,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1894 transitions. [2024-11-27 20:04:57,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8249128919860628 [2024-11-27 20:04:57,835 INFO L175 Difference]: Start difference. First operand has 511 places, 930 transitions, 18910 flow. Second operand 14 states and 1894 transitions. [2024-11-27 20:04:57,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 973 transitions, 21104 flow [2024-11-27 20:04:58,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 973 transitions, 20988 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-11-27 20:04:58,669 INFO L231 Difference]: Finished difference. Result has 523 places, 936 transitions, 19753 flow [2024-11-27 20:04:58,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=18794, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19753, PETRI_PLACES=523, PETRI_TRANSITIONS=936} [2024-11-27 20:04:58,670 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 360 predicate places. [2024-11-27 20:04:58,671 INFO L471 AbstractCegarLoop]: Abstraction has has 523 places, 936 transitions, 19753 flow [2024-11-27 20:04:58,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-11-27 20:04:58,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:58,671 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:58,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:04:58,672 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:04:58,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash -489117001, now seen corresponding path program 19 times [2024-11-27 20:04:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778809453] [2024-11-27 20:04:58,675 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:04:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:05:15,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778809453] [2024-11-27 20:05:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778809453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815120541] [2024-11-27 20:05:15,315 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:05:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:15,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:15,317 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:15,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:05:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:15,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-27 20:05:15,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:15,954 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 16 treesize of output 12 [2024-11-27 20:05:16,152 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 [2024-11-27 20:05:16,226 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 [2024-11-27 20:05:16,318 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:05:16,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:05:16,407 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 [2024-11-27 20:05:16,522 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 [2024-11-27 20:05:16,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:16,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:16,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:16,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:16,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:16,771 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 65 treesize of output 73 [2024-11-27 20:05:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 20:05:16,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:18,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-27 20:05:18,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-27 20:05:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:05:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815120541] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:18,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:05:18,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 23] total 44 [2024-11-27 20:05:18,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139325409] [2024-11-27 20:05:18,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:18,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:05:18,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:18,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:05:18,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 20:05:24,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-11-27 20:05:24,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 936 transitions, 19753 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-11-27 20:05:24,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:24,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-11-27 20:05:24,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:29,777 INFO L124 PetriNetUnfolderBase]: 1437/4675 cut-off events. [2024-11-27 20:05:29,777 INFO L125 PetriNetUnfolderBase]: For 101715/102051 co-relation queries the response was YES. [2024-11-27 20:05:29,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32868 conditions, 4675 events. 1437/4675 cut-off events. For 101715/102051 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 40105 event pairs, 75 based on Foata normal form. 130/4751 useless extension candidates. Maximal degree in co-relation 32519. Up to 1137 conditions per place. [2024-11-27 20:05:29,858 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 543 selfloop transitions, 451 changer transitions 10/1159 dead transitions. [2024-11-27 20:05:29,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1159 transitions, 25133 flow [2024-11-27 20:05:29,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:05:29,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-27 20:05:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2024-11-27 20:05:29,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8380758807588076 [2024-11-27 20:05:29,861 INFO L175 Difference]: Start difference. First operand has 523 places, 936 transitions, 19753 flow. Second operand 18 states and 2474 transitions. [2024-11-27 20:05:29,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1159 transitions, 25133 flow [2024-11-27 20:05:30,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 1159 transitions, 24244 flow, removed 32 selfloop flow, removed 9 redundant places. [2024-11-27 20:05:30,675 INFO L231 Difference]: Finished difference. Result has 537 places, 955 transitions, 20365 flow [2024-11-27 20:05:30,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=18947, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20365, PETRI_PLACES=537, PETRI_TRANSITIONS=955} [2024-11-27 20:05:30,677 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 374 predicate places. [2024-11-27 20:05:30,677 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 955 transitions, 20365 flow [2024-11-27 20:05:30,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-11-27 20:05:30,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:30,678 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:30,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:05:30,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:05:30,878 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:05:30,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash 237042805, now seen corresponding path program 20 times [2024-11-27 20:05:30,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997931922] [2024-11-27 20:05:30,880 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:05:30,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:30,910 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:05:30,910 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:05:32,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:32,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997931922] [2024-11-27 20:05:32,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997931922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:32,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:32,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:05:32,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430297102] [2024-11-27 20:05:32,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:32,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:05:32,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:32,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:05:32,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:05:34,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:05:34,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 955 transitions, 20365 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:05:34,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:34,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:05:34,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:36,617 INFO L124 PetriNetUnfolderBase]: 1330/4423 cut-off events. [2024-11-27 20:05:36,617 INFO L125 PetriNetUnfolderBase]: For 100164/100515 co-relation queries the response was YES. [2024-11-27 20:05:36,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31760 conditions, 4423 events. 1330/4423 cut-off events. For 100164/100515 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38396 event pairs, 131 based on Foata normal form. 110/4469 useless extension candidates. Maximal degree in co-relation 31484. Up to 1281 conditions per place. [2024-11-27 20:05:36,671 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 644 selfloop transitions, 228 changer transitions 10/1086 dead transitions. [2024-11-27 20:05:36,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 1086 transitions, 23888 flow [2024-11-27 20:05:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:05:36,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:05:36,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1548 transitions. [2024-11-27 20:05:36,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8580931263858093 [2024-11-27 20:05:36,674 INFO L175 Difference]: Start difference. First operand has 537 places, 955 transitions, 20365 flow. Second operand 11 states and 1548 transitions. [2024-11-27 20:05:36,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 1086 transitions, 23888 flow [2024-11-27 20:05:37,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1086 transitions, 23307 flow, removed 34 selfloop flow, removed 7 redundant places. [2024-11-27 20:05:37,654 INFO L231 Difference]: Finished difference. Result has 544 places, 966 transitions, 20742 flow [2024-11-27 20:05:37,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=19798, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20742, PETRI_PLACES=544, PETRI_TRANSITIONS=966} [2024-11-27 20:05:37,655 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 381 predicate places. [2024-11-27 20:05:37,656 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 966 transitions, 20742 flow [2024-11-27 20:05:37,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:05:37,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:37,656 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:37,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 20:05:37,657 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:05:37,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:37,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1532683865, now seen corresponding path program 21 times [2024-11-27 20:05:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:37,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031249675] [2024-11-27 20:05:37,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:05:37,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:37,677 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:05:37,678 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:05:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031249675] [2024-11-27 20:05:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031249675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:38,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:38,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:05:38,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237048973] [2024-11-27 20:05:38,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:38,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:05:38,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:38,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:05:38,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:05:40,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-27 20:05:40,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 966 transitions, 20742 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:05:40,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:40,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-27 20:05:40,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:42,562 INFO L124 PetriNetUnfolderBase]: 1327/4420 cut-off events. [2024-11-27 20:05:42,563 INFO L125 PetriNetUnfolderBase]: For 102930/103285 co-relation queries the response was YES. [2024-11-27 20:05:42,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31753 conditions, 4420 events. 1327/4420 cut-off events. For 102930/103285 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 38385 event pairs, 131 based on Foata normal form. 120/4476 useless extension candidates. Maximal degree in co-relation 31475. Up to 1281 conditions per place. [2024-11-27 20:05:42,611 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 634 selfloop transitions, 239 changer transitions 9/1086 dead transitions. [2024-11-27 20:05:42,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1086 transitions, 23941 flow [2024-11-27 20:05:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:05:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:05:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1550 transitions. [2024-11-27 20:05:42,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8592017738359202 [2024-11-27 20:05:42,613 INFO L175 Difference]: Start difference. First operand has 544 places, 966 transitions, 20742 flow. Second operand 11 states and 1550 transitions. [2024-11-27 20:05:42,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1086 transitions, 23941 flow [2024-11-27 20:05:43,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1086 transitions, 23641 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-11-27 20:05:43,319 INFO L231 Difference]: Finished difference. Result has 553 places, 970 transitions, 21173 flow [2024-11-27 20:05:43,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=20452, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21173, PETRI_PLACES=553, PETRI_TRANSITIONS=970} [2024-11-27 20:05:43,321 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 390 predicate places. [2024-11-27 20:05:43,321 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 970 transitions, 21173 flow [2024-11-27 20:05:43,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-11-27 20:05:43,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:43,323 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:43,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 20:05:43,323 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:05:43,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:43,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1619759417, now seen corresponding path program 22 times [2024-11-27 20:05:43,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:43,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341982800] [2024-11-27 20:05:43,326 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:05:43,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:43,364 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:05:43,364 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:05:44,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341982800] [2024-11-27 20:05:44,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341982800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073497798] [2024-11-27 20:05:44,792 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:05:44,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:44,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:44,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:44,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:05:44,987 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:05:44,987 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:44,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 20:05:44,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:45,395 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 16 treesize of output 12 [2024-11-27 20:05:45,486 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 [2024-11-27 20:05:45,552 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 [2024-11-27 20:05:45,628 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:05:45,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:05:45,800 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 [2024-11-27 20:05:45,910 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 [2024-11-27 20:05:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:46,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:46,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:46,027 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 75 treesize of output 60 [2024-11-27 20:05:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:05:46,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:05:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073497798] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:05:47,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 25] total 43 [2024-11-27 20:05:47,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238355754] [2024-11-27 20:05:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:47,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:05:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:47,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:05:47,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 20:05:52,248 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:05:52,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 970 transitions, 21173 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:05:52,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:52,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:05:52,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:56,294 INFO L124 PetriNetUnfolderBase]: 1410/4602 cut-off events. [2024-11-27 20:05:56,294 INFO L125 PetriNetUnfolderBase]: For 106482/106776 co-relation queries the response was YES. [2024-11-27 20:05:56,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33115 conditions, 4602 events. 1410/4602 cut-off events. For 106482/106776 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 39814 event pairs, 103 based on Foata normal form. 136/4681 useless extension candidates. Maximal degree in co-relation 32831. Up to 1598 conditions per place. [2024-11-27 20:05:56,367 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 407 selfloop transitions, 444 changer transitions 15/1028 dead transitions. [2024-11-27 20:05:56,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1028 transitions, 23688 flow [2024-11-27 20:05:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:05:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 20:05:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1661 transitions. [2024-11-27 20:05:56,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440040650406504 [2024-11-27 20:05:56,369 INFO L175 Difference]: Start difference. First operand has 553 places, 970 transitions, 21173 flow. Second operand 12 states and 1661 transitions. [2024-11-27 20:05:56,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 1028 transitions, 23688 flow [2024-11-27 20:05:57,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 1028 transitions, 23300 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-27 20:05:57,207 INFO L231 Difference]: Finished difference. Result has 558 places, 970 transitions, 21700 flow [2024-11-27 20:05:57,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=20789, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21700, PETRI_PLACES=558, PETRI_TRANSITIONS=970} [2024-11-27 20:05:57,208 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 395 predicate places. [2024-11-27 20:05:57,208 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 970 transitions, 21700 flow [2024-11-27 20:05:57,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-11-27 20:05:57,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:57,209 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:57,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:05:57,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:57,410 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:05:57,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash 165577767, now seen corresponding path program 1 times [2024-11-27 20:05:57,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:57,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764615208] [2024-11-27 20:05:57,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:57,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:06:04,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764615208] [2024-11-27 20:06:04,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764615208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804483318] [2024-11-27 20:06:04,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:04,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:04,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:04,986 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:04,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:06:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:05,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-27 20:06:05,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:05,626 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 16 treesize of output 12 [2024-11-27 20:06:05,674 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 [2024-11-27 20:06:05,727 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 [2024-11-27 20:06:05,786 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 [2024-11-27 20:06:05,867 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 [2024-11-27 20:06:06,180 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:06:06,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:06:06,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,392 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 0 case distinctions, treesize of input 63 treesize of output 60 [2024-11-27 20:06:06,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,429 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 0 case distinctions, treesize of input 67 treesize of output 60 [2024-11-27 20:06:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,457 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 0 case distinctions, treesize of input 61 treesize of output 69 [2024-11-27 20:06:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-11-27 20:06:06,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:06:07,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:07,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 114 [2024-11-27 20:06:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:06:43,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:50,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-27 20:06:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:06:50,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804483318] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:50,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:06:50,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [12, 28] total 53 [2024-11-27 20:06:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718083157] [2024-11-27 20:06:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:50,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:06:50,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:50,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:06:50,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=2591, Unknown=10, NotChecked=0, Total=2862 [2024-11-27 20:07:10,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-27 20:07:10,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 970 transitions, 21700 flow. Second operand has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-11-27 20:07:10,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:07:10,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-27 20:07:10,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:07:32,419 INFO L124 PetriNetUnfolderBase]: 1580/5222 cut-off events. [2024-11-27 20:07:32,420 INFO L125 PetriNetUnfolderBase]: For 122120/122457 co-relation queries the response was YES. [2024-11-27 20:07:32,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37104 conditions, 5222 events. 1580/5222 cut-off events. For 122120/122457 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 46617 event pairs, 92 based on Foata normal form. 143/5352 useless extension candidates. Maximal degree in co-relation 36818. Up to 1553 conditions per place. [2024-11-27 20:07:32,562 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 759 selfloop transitions, 343 changer transitions 42/1319 dead transitions. [2024-11-27 20:07:32,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1319 transitions, 29488 flow [2024-11-27 20:07:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:07:32,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 20:07:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3007 transitions. [2024-11-27 20:07:32,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8334257206208425 [2024-11-27 20:07:32,568 INFO L175 Difference]: Start difference. First operand has 558 places, 970 transitions, 21700 flow. Second operand 22 states and 3007 transitions. [2024-11-27 20:07:32,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 1319 transitions, 29488 flow [2024-11-27 20:07:33,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1319 transitions, 29033 flow, removed 14 selfloop flow, removed 10 redundant places. [2024-11-27 20:07:33,920 INFO L231 Difference]: Finished difference. Result has 583 places, 1130 transitions, 25259 flow [2024-11-27 20:07:33,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=21342, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=25259, PETRI_PLACES=583, PETRI_TRANSITIONS=1130} [2024-11-27 20:07:33,921 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 420 predicate places. [2024-11-27 20:07:33,921 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 1130 transitions, 25259 flow [2024-11-27 20:07:33,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-11-27 20:07:33,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:07:33,922 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:33,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:34,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 20:07:34,123 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:07:34,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash 404442017, now seen corresponding path program 2 times [2024-11-27 20:07:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:34,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694242517] [2024-11-27 20:07:34,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:34,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:34,158 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:07:34,158 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:07:36,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:36,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694242517] [2024-11-27 20:07:36,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694242517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:36,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:36,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:07:36,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746072443] [2024-11-27 20:07:36,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:36,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:07:36,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:36,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:07:36,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:39,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-11-27 20:07:39,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1130 transitions, 25259 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:07:39,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:07:39,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-11-27 20:07:39,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:07:43,184 INFO L124 PetriNetUnfolderBase]: 1405/5040 cut-off events. [2024-11-27 20:07:43,184 INFO L125 PetriNetUnfolderBase]: For 130954/131480 co-relation queries the response was YES. [2024-11-27 20:07:43,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37038 conditions, 5040 events. 1405/5040 cut-off events. For 130954/131480 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 46259 event pairs, 59 based on Foata normal form. 196/5206 useless extension candidates. Maximal degree in co-relation 36748. Up to 1045 conditions per place. [2024-11-27 20:07:43,250 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 631 selfloop transitions, 229 changer transitions 4/1379 dead transitions. [2024-11-27 20:07:43,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1379 transitions, 31041 flow [2024-11-27 20:07:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:07:43,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 20:07:43,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1728 transitions. [2024-11-27 20:07:43,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8780487804878049 [2024-11-27 20:07:43,253 INFO L175 Difference]: Start difference. First operand has 583 places, 1130 transitions, 25259 flow. Second operand 12 states and 1728 transitions. [2024-11-27 20:07:43,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1379 transitions, 31041 flow [2024-11-27 20:07:44,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 1379 transitions, 30645 flow, removed 187 selfloop flow, removed 2 redundant places. [2024-11-27 20:07:44,389 INFO L231 Difference]: Finished difference. Result has 598 places, 1236 transitions, 27978 flow [2024-11-27 20:07:44,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=24986, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27978, PETRI_PLACES=598, PETRI_TRANSITIONS=1236} [2024-11-27 20:07:44,391 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 435 predicate places. [2024-11-27 20:07:44,391 INFO L471 AbstractCegarLoop]: Abstraction has has 598 places, 1236 transitions, 27978 flow [2024-11-27 20:07:44,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:07:44,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:07:44,392 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:44,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 20:07:44,392 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:07:44,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1150160489, now seen corresponding path program 3 times [2024-11-27 20:07:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:44,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847348494] [2024-11-27 20:07:44,395 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:07:44,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:44,434 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:07:44,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:07:46,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:46,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847348494] [2024-11-27 20:07:46,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847348494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:46,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:46,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:07:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408238340] [2024-11-27 20:07:46,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:46,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:07:46,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:46,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:07:46,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:48,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-11-27 20:07:48,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1236 transitions, 27978 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:07:48,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:07:48,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-11-27 20:07:48,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:07:52,973 INFO L124 PetriNetUnfolderBase]: 1530/5453 cut-off events. [2024-11-27 20:07:52,973 INFO L125 PetriNetUnfolderBase]: For 165886/166448 co-relation queries the response was YES. [2024-11-27 20:07:53,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41339 conditions, 5453 events. 1530/5453 cut-off events. For 165886/166448 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 50936 event pairs, 62 based on Foata normal form. 247/5669 useless extension candidates. Maximal degree in co-relation 41042. Up to 1684 conditions per place. [2024-11-27 20:07:53,285 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 571 selfloop transitions, 284 changer transitions 10/1380 dead transitions. [2024-11-27 20:07:53,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1380 transitions, 33743 flow [2024-11-27 20:07:53,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:07:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-27 20:07:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2132 transitions. [2024-11-27 20:07:53,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-11-27 20:07:53,289 INFO L175 Difference]: Start difference. First operand has 598 places, 1236 transitions, 27978 flow. Second operand 15 states and 2132 transitions. [2024-11-27 20:07:53,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1380 transitions, 33743 flow [2024-11-27 20:07:54,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1380 transitions, 33211 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-27 20:07:54,757 INFO L231 Difference]: Finished difference. Result has 613 places, 1322 transitions, 31600 flow [2024-11-27 20:07:54,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=27543, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31600, PETRI_PLACES=613, PETRI_TRANSITIONS=1322} [2024-11-27 20:07:54,759 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 450 predicate places. [2024-11-27 20:07:54,759 INFO L471 AbstractCegarLoop]: Abstraction has has 613 places, 1322 transitions, 31600 flow [2024-11-27 20:07:54,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:07:54,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:07:54,760 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:54,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 20:07:54,760 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:07:54,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:54,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1282449981, now seen corresponding path program 4 times [2024-11-27 20:07:54,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:54,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107315086] [2024-11-27 20:07:54,764 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:07:54,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:54,816 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:07:54,816 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:07:58,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107315086] [2024-11-27 20:07:58,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107315086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913081926] [2024-11-27 20:07:58,312 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:07:58,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:58,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:58,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:58,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:07:58,598 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:07:58,598 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:58,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-27 20:07:58,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:59,329 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 [2024-11-27 20:07:59,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 20:07:59,472 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 25 treesize of output 24 [2024-11-27 20:07:59,867 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 36 treesize of output 38 [2024-11-27 20:08:00,036 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 47 treesize of output 52 [2024-11-27 20:08:00,212 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-27 20:08:00,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-27 20:08:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,505 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 0 case distinctions, treesize of input 58 treesize of output 55 [2024-11-27 20:08:00,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,538 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 0 case distinctions, treesize of input 56 treesize of output 64 [2024-11-27 20:08:00,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-11-27 20:08:00,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:00,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2024-11-27 20:08:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:01,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:01,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:01,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:08:01,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:01,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-11-27 20:08:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 20:08:17,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:20,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-27 20:08:20,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-27 20:08:20,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-27 20:08:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:08:20,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913081926] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:20,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:20,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13, 27] total 50 [2024-11-27 20:08:20,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419812163] [2024-11-27 20:08:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:20,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:08:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:20,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:08:20,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=2246, Unknown=4, NotChecked=0, Total=2550 [2024-11-27 20:08:46,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-11-27 20:08:46,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1322 transitions, 31600 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:08:46,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:46,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-11-27 20:08:46,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:01,862 INFO L124 PetriNetUnfolderBase]: 2107/7132 cut-off events. [2024-11-27 20:09:01,862 INFO L125 PetriNetUnfolderBase]: For 239638/240396 co-relation queries the response was YES. [2024-11-27 20:09:01,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56109 conditions, 7132 events. 2107/7132 cut-off events. For 239638/240396 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 69738 event pairs, 147 based on Foata normal form. 223/7310 useless extension candidates. Maximal degree in co-relation 55804. Up to 1507 conditions per place. [2024-11-27 20:09:02,011 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 927 selfloop transitions, 616 changer transitions 14/1792 dead transitions. [2024-11-27 20:09:02,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 1792 transitions, 44484 flow [2024-11-27 20:09:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-27 20:09:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-27 20:09:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3562 transitions. [2024-11-27 20:09:02,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8353658536585366 [2024-11-27 20:09:02,016 INFO L175 Difference]: Start difference. First operand has 613 places, 1322 transitions, 31600 flow. Second operand 26 states and 3562 transitions. [2024-11-27 20:09:02,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 1792 transitions, 44484 flow [2024-11-27 20:09:04,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 1792 transitions, 44218 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-27 20:09:04,251 INFO L231 Difference]: Finished difference. Result has 648 places, 1501 transitions, 38590 flow [2024-11-27 20:09:04,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=31409, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=443, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=38590, PETRI_PLACES=648, PETRI_TRANSITIONS=1501} [2024-11-27 20:09:04,253 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 485 predicate places. [2024-11-27 20:09:04,253 INFO L471 AbstractCegarLoop]: Abstraction has has 648 places, 1501 transitions, 38590 flow [2024-11-27 20:09:04,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:09:04,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:04,254 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:04,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:09:04,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 20:09:04,455 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:09:04,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2021282201, now seen corresponding path program 5 times [2024-11-27 20:09:04,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:04,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142974094] [2024-11-27 20:09:04,457 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:09:04,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:04,646 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:09:04,646 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 237 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:14,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:14,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142974094] [2024-11-27 20:09:14,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142974094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29314624] [2024-11-27 20:09:14,814 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:09:14,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:14,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:14,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:14,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:09:15,122 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 20:09:15,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:15,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-27 20:09:15,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:15,204 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 16 treesize of output 12 [2024-11-27 20:09:15,254 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 [2024-11-27 20:09:15,436 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 [2024-11-27 20:09:15,550 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 [2024-11-27 20:09:15,664 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 [2024-11-27 20:09:15,785 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:09:15,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:09:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,073 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 0 case distinctions, treesize of input 63 treesize of output 60 [2024-11-27 20:09:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,121 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 0 case distinctions, treesize of input 61 treesize of output 69 [2024-11-27 20:09:16,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-11-27 20:09:16,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2024-11-27 20:09:16,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:09:16,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:16,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2024-11-27 20:09:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 20:09:45,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:49,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-27 20:09:49,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-27 20:09:49,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-27 20:09:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:09:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29314624] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:09:49,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [31, 26] total 53 [2024-11-27 20:09:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765268628] [2024-11-27 20:09:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:49,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:09:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:49,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:09:49,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=2586, Unknown=7, NotChecked=0, Total=2862 [2024-11-27 20:10:27,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-11-27 20:10:27,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 1501 transitions, 38590 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:10:27,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:27,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-11-27 20:10:27,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:03,782 INFO L124 PetriNetUnfolderBase]: 2328/7878 cut-off events. [2024-11-27 20:11:03,783 INFO L125 PetriNetUnfolderBase]: For 287846/288684 co-relation queries the response was YES. [2024-11-27 20:11:03,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64423 conditions, 7878 events. 2328/7878 cut-off events. For 287846/288684 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 78976 event pairs, 168 based on Foata normal form. 252/8083 useless extension candidates. Maximal degree in co-relation 64101. Up to 1701 conditions per place. [2024-11-27 20:11:04,068 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 998 selfloop transitions, 670 changer transitions 14/1917 dead transitions. [2024-11-27 20:11:04,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1917 transitions, 50039 flow [2024-11-27 20:11:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 20:11:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-27 20:11:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3436 transitions. [2024-11-27 20:11:04,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8380487804878048 [2024-11-27 20:11:04,096 INFO L175 Difference]: Start difference. First operand has 648 places, 1501 transitions, 38590 flow. Second operand 25 states and 3436 transitions. [2024-11-27 20:11:04,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1917 transitions, 50039 flow [2024-11-27 20:11:08,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 1917 transitions, 49594 flow, removed 147 selfloop flow, removed 3 redundant places. [2024-11-27 20:11:08,098 INFO L231 Difference]: Finished difference. Result has 679 places, 1573 transitions, 42643 flow [2024-11-27 20:11:08,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=38197, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=600, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=880, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=42643, PETRI_PLACES=679, PETRI_TRANSITIONS=1573} [2024-11-27 20:11:08,101 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 516 predicate places. [2024-11-27 20:11:08,101 INFO L471 AbstractCegarLoop]: Abstraction has has 679 places, 1573 transitions, 42643 flow [2024-11-27 20:11:08,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:11:08,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:08,102 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:08,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:11:08,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 20:11:08,303 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:11:08,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash -364650479, now seen corresponding path program 6 times [2024-11-27 20:11:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871024431] [2024-11-27 20:11:08,311 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:11:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:08,617 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:11:08,621 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:11:14,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:14,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871024431] [2024-11-27 20:11:14,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871024431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:11:14,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:11:14,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:11:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075976433] [2024-11-27 20:11:14,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:14,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:11:14,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:14,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:11:14,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:11:17,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-11-27 20:11:17,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 1573 transitions, 42643 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:11:17,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:11:17,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-11-27 20:11:17,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:11:27,738 INFO L124 PetriNetUnfolderBase]: 2018/7301 cut-off events. [2024-11-27 20:11:27,739 INFO L125 PetriNetUnfolderBase]: For 293544/294399 co-relation queries the response was YES. [2024-11-27 20:11:27,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61123 conditions, 7301 events. 2018/7301 cut-off events. For 293544/294399 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 74303 event pairs, 63 based on Foata normal form. 339/7604 useless extension candidates. Maximal degree in co-relation 60795. Up to 2255 conditions per place. [2024-11-27 20:11:27,968 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 644 selfloop transitions, 416 changer transitions 5/1612 dead transitions. [2024-11-27 20:11:27,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 1612 transitions, 45470 flow [2024-11-27 20:11:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:11:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:11:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1572 transitions. [2024-11-27 20:11:27,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8713968957871396 [2024-11-27 20:11:27,972 INFO L175 Difference]: Start difference. First operand has 679 places, 1573 transitions, 42643 flow. Second operand 11 states and 1572 transitions. [2024-11-27 20:11:27,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 1612 transitions, 45470 flow [2024-11-27 20:11:31,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 1612 transitions, 44968 flow, removed 44 selfloop flow, removed 7 redundant places. [2024-11-27 20:11:31,091 INFO L231 Difference]: Finished difference. Result has 685 places, 1573 transitions, 43128 flow [2024-11-27 20:11:31,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=42145, PETRI_DIFFERENCE_MINUEND_PLACES=672, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=43128, PETRI_PLACES=685, PETRI_TRANSITIONS=1573} [2024-11-27 20:11:31,098 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 522 predicate places. [2024-11-27 20:11:31,098 INFO L471 AbstractCegarLoop]: Abstraction has has 685 places, 1573 transitions, 43128 flow [2024-11-27 20:11:31,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:11:31,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:11:31,099 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:31,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-27 20:11:31,100 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:11:31,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 196892099, now seen corresponding path program 7 times [2024-11-27 20:11:31,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:31,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264038947] [2024-11-27 20:11:31,105 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:11:31,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-27 20:11:46,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:46,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264038947] [2024-11-27 20:11:46,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264038947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:46,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976135151] [2024-11-27 20:11:46,451 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:11:46,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:46,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:46,454 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:46,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:11:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:46,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-27 20:11:46,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:47,545 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 16 treesize of output 12 [2024-11-27 20:11:47,624 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 [2024-11-27 20:11:47,714 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 [2024-11-27 20:11:48,084 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 20:11:48,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-27 20:11:48,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,340 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 39 treesize of output 30 [2024-11-27 20:11:48,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,394 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 37 treesize of output 39 [2024-11-27 20:11:48,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,565 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 49 treesize of output 54 [2024-11-27 20:11:48,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:48,794 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 0 case distinctions, treesize of input 61 treesize of output 69 [2024-11-27 20:11:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-11-27 20:11:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2024-11-27 20:11:49,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:11:49,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:49,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2024-11-27 20:12:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:12:10,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:16,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-27 20:12:16,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-27 20:12:16,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-27 20:12:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:12:16,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976135151] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:16,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:12:16,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12, 28] total 50 [2024-11-27 20:12:16,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383377822] [2024-11-27 20:12:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:16,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:12:16,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:16,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:12:16,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=2300, Unknown=5, NotChecked=0, Total=2550 [2024-11-27 20:12:57,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-11-27 20:12:57,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 1573 transitions, 43128 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:12:57,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:12:57,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-11-27 20:12:57,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:13:25,563 INFO L124 PetriNetUnfolderBase]: 2519/8550 cut-off events. [2024-11-27 20:13:25,563 INFO L125 PetriNetUnfolderBase]: For 374482/375619 co-relation queries the response was YES. [2024-11-27 20:13:25,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73680 conditions, 8550 events. 2519/8550 cut-off events. For 374482/375619 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 87522 event pairs, 123 based on Foata normal form. 371/8874 useless extension candidates. Maximal degree in co-relation 73345. Up to 1926 conditions per place. [2024-11-27 20:13:25,754 INFO L140 encePairwiseOnDemand]: 141/164 looper letters, 994 selfloop transitions, 760 changer transitions 8/1997 dead transitions. [2024-11-27 20:13:25,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 1997 transitions, 56928 flow [2024-11-27 20:13:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:13:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-27 20:13:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2907 transitions. [2024-11-27 20:13:25,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440766550522648 [2024-11-27 20:13:25,762 INFO L175 Difference]: Start difference. First operand has 685 places, 1573 transitions, 43128 flow. Second operand 21 states and 2907 transitions. [2024-11-27 20:13:25,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 1997 transitions, 56928 flow [2024-11-27 20:13:29,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 699 places, 1997 transitions, 56078 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-27 20:13:29,447 INFO L231 Difference]: Finished difference. Result has 707 places, 1729 transitions, 50698 flow [2024-11-27 20:13:29,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=42439, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=50698, PETRI_PLACES=707, PETRI_TRANSITIONS=1729} [2024-11-27 20:13:29,454 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 544 predicate places. [2024-11-27 20:13:29,455 INFO L471 AbstractCegarLoop]: Abstraction has has 707 places, 1729 transitions, 50698 flow [2024-11-27 20:13:29,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-11-27 20:13:29,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:13:29,457 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:29,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:13:29,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836fb0b8-c99e-4f62-ba53-74823f3b483a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 20:13:29,657 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:13:29,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:29,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1871214609, now seen corresponding path program 8 times [2024-11-27 20:13:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:29,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163941485] [2024-11-27 20:13:29,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:13:29,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:29,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:13:29,696 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:13:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:13:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:33,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163941485] [2024-11-27 20:13:33,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163941485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:33,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:33,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:13:33,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427953262] [2024-11-27 20:13:33,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:33,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:13:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:33,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:13:33,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:13:35,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-11-27 20:13:35,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 1729 transitions, 50698 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:13:35,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:13:35,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-11-27 20:13:35,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:13:44,576 INFO L124 PetriNetUnfolderBase]: 2318/8362 cut-off events. [2024-11-27 20:13:44,577 INFO L125 PetriNetUnfolderBase]: For 403777/404799 co-relation queries the response was YES. [2024-11-27 20:13:44,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74275 conditions, 8362 events. 2318/8362 cut-off events. For 403777/404799 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 87910 event pairs, 73 based on Foata normal form. 298/8617 useless extension candidates. Maximal degree in co-relation 73936. Up to 2386 conditions per place. [2024-11-27 20:13:44,755 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 688 selfloop transitions, 603 changer transitions 6/1859 dead transitions. [2024-11-27 20:13:44,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 1859 transitions, 56897 flow [2024-11-27 20:13:44,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:13:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:13:44,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1576 transitions. [2024-11-27 20:13:44,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736141906873615 [2024-11-27 20:13:44,758 INFO L175 Difference]: Start difference. First operand has 707 places, 1729 transitions, 50698 flow. Second operand 11 states and 1576 transitions. [2024-11-27 20:13:44,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 1859 transitions, 56897 flow [2024-11-27 20:13:48,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 1859 transitions, 56550 flow, removed 68 selfloop flow, removed 5 redundant places. [2024-11-27 20:13:48,554 INFO L231 Difference]: Finished difference. Result has 720 places, 1800 transitions, 55365 flow [2024-11-27 20:13:48,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=50364, PETRI_DIFFERENCE_MINUEND_PLACES=702, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=534, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=55365, PETRI_PLACES=720, PETRI_TRANSITIONS=1800} [2024-11-27 20:13:48,557 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 557 predicate places. [2024-11-27 20:13:48,557 INFO L471 AbstractCegarLoop]: Abstraction has has 720 places, 1800 transitions, 55365 flow [2024-11-27 20:13:48,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:13:48,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:13:48,558 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:48,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 20:13:48,558 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:13:48,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -736014605, now seen corresponding path program 9 times [2024-11-27 20:13:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:48,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656551866] [2024-11-27 20:13:48,563 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:13:48,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:48,615 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:13:48,615 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:13:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-27 20:13:52,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:52,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656551866] [2024-11-27 20:13:52,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656551866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:52,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:52,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:13:52,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142282255] [2024-11-27 20:13:52,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:52,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:13:52,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:52,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:13:52,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:13:54,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-11-27 20:13:54,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 1800 transitions, 55365 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-11-27 20:13:54,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:13:54,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-11-27 20:13:54,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand