./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:36:49,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:36:50,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-23 23:36:50,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:36:50,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:36:50,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:36:50,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:36:50,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:36:50,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:36:50,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:36:50,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:36:50,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:36:50,112 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:36:50,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:36:50,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:36:50,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:36:50,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:36:50,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:36:50,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:36:50,115 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:36:50,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:36:50,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:36:50,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:36:50,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:36:50,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:36:50,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:36:50,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:36:50,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:36:50,117 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_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-23 23:36:50,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:36:50,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:36:50,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:36:50,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:36:50,505 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:36:50,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-23 23:36:54,132 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/data/a2b4e3232/93e70dfa6a18437aa9bcd2d6c2e9e66a/FLAG6d3479a1b [2024-11-23 23:36:54,591 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:36:54,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-23 23:36:54,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/data/a2b4e3232/93e70dfa6a18437aa9bcd2d6c2e9e66a/FLAG6d3479a1b [2024-11-23 23:36:54,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/data/a2b4e3232/93e70dfa6a18437aa9bcd2d6c2e9e66a [2024-11-23 23:36:54,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:36:54,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:36:54,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:36:54,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:36:54,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:36:54,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:54" (1/1) ... [2024-11-23 23:36:54,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4733e2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:54, skipping insertion in model container [2024-11-23 23:36:54,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:54" (1/1) ... [2024-11-23 23:36:54,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:36:55,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:36:55,321 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:36:55,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:36:55,463 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:36:55,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55 WrapperNode [2024-11-23 23:36:55,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:36:55,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:36:55,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:36:55,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:36:55,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,532 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-11-23 23:36:55,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:36:55,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:36:55,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:36:55,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:36:55,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,581 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:36:55,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:36:55,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:36:55,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:36:55,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (1/1) ... [2024-11-23 23:36:55,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:36:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:55,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:36:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:36:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 23:36:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 23:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 23:36:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 23:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 23:36:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:36:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:36:55,712 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:36:55,912 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:36:55,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:36:56,471 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:36:56,472 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:36:56,528 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:36:56,529 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 23:36:56,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:56 BoogieIcfgContainer [2024-11-23 23:36:56,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:36:56,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:36:56,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:36:56,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:36:56,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:36:54" (1/3) ... [2024-11-23 23:36:56,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4e226d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:36:56, skipping insertion in model container [2024-11-23 23:36:56,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:55" (2/3) ... [2024-11-23 23:36:56,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4e226d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:36:56, skipping insertion in model container [2024-11-23 23:36:56,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:56" (3/3) ... [2024-11-23 23:36:56,541 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-23 23:36:56,568 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:36:56,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_05-funloop_hard2.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-23 23:36:56,570 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:36:56,704 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 23:36:56,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 185 transitions, 374 flow [2024-11-23 23:36:56,886 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2024-11-23 23:36:56,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:36:56,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 184 events. 6/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-11-23 23:36:56,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 185 transitions, 374 flow [2024-11-23 23:36:56,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 184 transitions, 371 flow [2024-11-23 23:36:56,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:36:56,950 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;@4ca127e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:36:56,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-23 23:36:56,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:36:56,987 INFO L124 PetriNetUnfolderBase]: 4/117 cut-off events. [2024-11-23 23:36:56,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:36:56,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:36:56,989 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] [2024-11-23 23:36:56,989 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:36:56,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:56,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1097279062, now seen corresponding path program 1 times [2024-11-23 23:36:57,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:57,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496415730] [2024-11-23 23:36:57,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:57,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:57,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:57,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496415730] [2024-11-23 23:36:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496415730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:57,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:36:57,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:36:57,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197783876] [2024-11-23 23:36:57,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:57,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:36:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:57,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:36:57,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:36:57,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-11-23 23:36:57,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-23 23:36:57,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:36:57,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-11-23 23:36:57,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:36:57,975 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2024-11-23 23:36:57,976 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:36:57,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 321 events. 15/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 902 event pairs, 10 based on Foata normal form. 12/312 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2024-11-23 23:36:57,983 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-11-23 23:36:57,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2024-11-23 23:36:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:36:57,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:36:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-11-23 23:36:58,007 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-11-23 23:36:58,010 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 371 flow. Second operand 3 states and 526 transitions. [2024-11-23 23:36:58,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2024-11-23 23:36:58,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:36:58,029 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2024-11-23 23:36:58,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2024-11-23 23:36:58,040 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-11-23 23:36:58,040 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2024-11-23 23:36:58,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-23 23:36:58,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:36:58,045 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] [2024-11-23 23:36:58,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:36:58,046 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:36:58,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:58,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1511336742, now seen corresponding path program 1 times [2024-11-23 23:36:58,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:58,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190447753] [2024-11-23 23:36:58,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:58,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:58,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190447753] [2024-11-23 23:36:58,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190447753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:36:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010379077] [2024-11-23 23:36:58,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:58,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:36:58,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:58,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:36:58,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:36:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:58,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:36:58,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 23:36:58,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:36:58,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010379077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:58,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:36:58,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:36:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639636573] [2024-11-23 23:36:58,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:58,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:36:58,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:58,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:36:58,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:36:58,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-11-23 23:36:58,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-23 23:36:58,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:36:58,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-11-23 23:36:58,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:36:58,833 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2024-11-23 23:36:58,833 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:36:58,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 481 events. 35/481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1717 event pairs, 10 based on Foata normal form. 3/450 useless extension candidates. Maximal degree in co-relation 481. Up to 51 conditions per place. [2024-11-23 23:36:58,840 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-23 23:36:58,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2024-11-23 23:36:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:36:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:36:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-11-23 23:36:58,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-11-23 23:36:58,848 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2024-11-23 23:36:58,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2024-11-23 23:36:58,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:36:58,855 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2024-11-23 23:36:58,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2024-11-23 23:36:58,857 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2024-11-23 23:36:58,858 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2024-11-23 23:36:58,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-23 23:36:58,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:36:58,859 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] [2024-11-23 23:36:58,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:59,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:36:59,061 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:36:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash -599608147, now seen corresponding path program 1 times [2024-11-23 23:36:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30173764] [2024-11-23 23:36:59,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:59,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30173764] [2024-11-23 23:36:59,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30173764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:36:59,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297855496] [2024-11-23 23:36:59,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:59,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:36:59,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:59,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:36:59,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:36:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:59,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:36:59,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:59,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:36:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:59,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297855496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:36:59,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:36:59,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-23 23:36:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839417913] [2024-11-23 23:36:59,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:36:59,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:36:59,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:59,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:36:59,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:36:59,796 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-23 23:36:59,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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) [2024-11-23 23:36:59,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:36:59,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-23 23:36:59,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:00,096 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2024-11-23 23:37:00,096 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:37:00,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 489 events. 24/489 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1566 event pairs, 14 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 458. Up to 51 conditions per place. [2024-11-23 23:37:00,101 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2024-11-23 23:37:00,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2024-11-23 23:37:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:37:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:37:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2024-11-23 23:37:00,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9135135135135135 [2024-11-23 23:37:00,111 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2024-11-23 23:37:00,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2024-11-23 23:37:00,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:37:00,121 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2024-11-23 23:37:00,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2024-11-23 23:37:00,125 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2024-11-23 23:37:00,126 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2024-11-23 23:37:00,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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) [2024-11-23 23:37:00,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:00,127 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] [2024-11-23 23:37:00,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:37:00,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:00,333 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:00,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash -623758675, now seen corresponding path program 2 times [2024-11-23 23:37:00,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:00,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572019502] [2024-11-23 23:37:00,335 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:37:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:00,386 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:37:00,386 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:37:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:01,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572019502] [2024-11-23 23:37:01,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572019502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:01,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:01,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:37:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747053582] [2024-11-23 23:37:01,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:01,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:37:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:01,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:37:01,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:01,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:01,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2024-11-23 23:37:01,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:01,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:01,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:02,273 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2024-11-23 23:37:02,273 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-23 23:37:02,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1545 events. 333/1545 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10107 event pairs, 160 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2144. Up to 544 conditions per place. [2024-11-23 23:37:02,289 INFO L140 encePairwiseOnDemand]: 174/185 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2024-11-23 23:37:02,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2024-11-23 23:37:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:37:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2024-11-23 23:37:02,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8801801801801802 [2024-11-23 23:37:02,296 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2024-11-23 23:37:02,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2024-11-23 23:37:02,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 23:37:02,329 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2024-11-23 23:37:02,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2024-11-23 23:37:02,331 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2024-11-23 23:37:02,332 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2024-11-23 23:37:02,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2024-11-23 23:37:02,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:02,333 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] [2024-11-23 23:37:02,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:37:02,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:02,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1947137155, now seen corresponding path program 1 times [2024-11-23 23:37:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:02,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966027519] [2024-11-23 23:37:02,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:02,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:02,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966027519] [2024-11-23 23:37:02,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966027519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057744101] [2024-11-23 23:37:02,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:02,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:02,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:02,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:02,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:37:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:02,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:37:02,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:02,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:37:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057744101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:37:03,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:37:03,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-23 23:37:03,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644515176] [2024-11-23 23:37:03,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:37:03,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:37:03,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:03,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:37:03,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:37:03,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-23 23:37:03,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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) [2024-11-23 23:37:03,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:03,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-23 23:37:03,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:03,768 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2024-11-23 23:37:03,769 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-11-23 23:37:03,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 1109 events. 118/1109 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5885 event pairs, 24 based on Foata normal form. 4/1039 useless extension candidates. Maximal degree in co-relation 1418. Up to 133 conditions per place. [2024-11-23 23:37:03,779 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2024-11-23 23:37:03,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2024-11-23 23:37:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:37:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 23:37:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2024-11-23 23:37:03,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088803088803089 [2024-11-23 23:37:03,791 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2024-11-23 23:37:03,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2024-11-23 23:37:03,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 23:37:03,799 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2024-11-23 23:37:03,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2024-11-23 23:37:03,801 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2024-11-23 23:37:03,801 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2024-11-23 23:37:03,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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) [2024-11-23 23:37:03,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:03,804 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] [2024-11-23 23:37:03,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:37:04,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:04,006 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:04,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash -977440637, now seen corresponding path program 2 times [2024-11-23 23:37:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:04,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319462958] [2024-11-23 23:37:04,007 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:37:04,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:04,036 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:37:04,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 23:37:04,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:04,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319462958] [2024-11-23 23:37:04,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319462958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:04,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:04,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:37:04,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673336157] [2024-11-23 23:37:04,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:04,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:37:04,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:04,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:37:04,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:04,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:04,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2024-11-23 23:37:04,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:04,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:04,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:05,677 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2024-11-23 23:37:05,677 INFO L125 PetriNetUnfolderBase]: For 420/450 co-relation queries the response was YES. [2024-11-23 23:37:05,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2412 events. 505/2412 cut-off events. For 420/450 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 17683 event pairs, 194 based on Foata normal form. 5/2276 useless extension candidates. Maximal degree in co-relation 3909. Up to 824 conditions per place. [2024-11-23 23:37:05,696 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2024-11-23 23:37:05,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2024-11-23 23:37:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:37:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2024-11-23 23:37:05,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9018018018018018 [2024-11-23 23:37:05,700 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2024-11-23 23:37:05,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2024-11-23 23:37:05,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-23 23:37:05,712 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2024-11-23 23:37:05,713 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2024-11-23 23:37:05,714 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2024-11-23 23:37:05,714 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2024-11-23 23:37:05,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2024-11-23 23:37:05,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:05,715 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] [2024-11-23 23:37:05,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:37:05,715 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:05,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1101107293, now seen corresponding path program 1 times [2024-11-23 23:37:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:05,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193677019] [2024-11-23 23:37:05,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:06,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193677019] [2024-11-23 23:37:06,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193677019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264031283] [2024-11-23 23:37:06,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:06,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:06,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:06,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:37:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:06,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:37:06,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:06,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:37:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:37:07,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264031283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:37:07,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:37:07,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-23 23:37:07,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581176751] [2024-11-23 23:37:07,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:37:07,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 23:37:07,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:07,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 23:37:07,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:37:07,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-23 23:37:07,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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) [2024-11-23 23:37:07,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:07,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-23 23:37:07,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:08,109 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2024-11-23 23:37:08,109 INFO L125 PetriNetUnfolderBase]: For 601/630 co-relation queries the response was YES. [2024-11-23 23:37:08,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 1738 events. 264/1738 cut-off events. For 601/630 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11636 event pairs, 40 based on Foata normal form. 13/1667 useless extension candidates. Maximal degree in co-relation 2886. Up to 204 conditions per place. [2024-11-23 23:37:08,123 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2024-11-23 23:37:08,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2024-11-23 23:37:08,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:37:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-23 23:37:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2024-11-23 23:37:08,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9073873873873873 [2024-11-23 23:37:08,136 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2024-11-23 23:37:08,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2024-11-23 23:37:08,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 23:37:08,152 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2024-11-23 23:37:08,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2024-11-23 23:37:08,153 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2024-11-23 23:37:08,153 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2024-11-23 23:37:08,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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) [2024-11-23 23:37:08,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:08,159 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] [2024-11-23 23:37:08,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:37:08,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:08,361 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:08,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1002039085, now seen corresponding path program 2 times [2024-11-23 23:37:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851133676] [2024-11-23 23:37:08,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:37:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:08,398 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:37:08,398 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:08,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:08,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851133676] [2024-11-23 23:37:08,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851133676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:08,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:08,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:37:08,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248744989] [2024-11-23 23:37:08,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:08,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:37:08,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:08,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:37:08,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:09,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-11-23 23:37:09,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-23 23:37:09,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:09,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-11-23 23:37:09,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:10,317 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2024-11-23 23:37:10,317 INFO L125 PetriNetUnfolderBase]: For 2002/2097 co-relation queries the response was YES. [2024-11-23 23:37:10,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2002/2097 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 23799 event pairs, 303 based on Foata normal form. 20/3172 useless extension candidates. Maximal degree in co-relation 7261. Up to 1634 conditions per place. [2024-11-23 23:37:10,344 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2024-11-23 23:37:10,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2024-11-23 23:37:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:37:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2024-11-23 23:37:10,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495495495495495 [2024-11-23 23:37:10,348 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2024-11-23 23:37:10,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2024-11-23 23:37:10,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-23 23:37:10,371 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2024-11-23 23:37:10,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=259, PETRI_TRANSITIONS=325} [2024-11-23 23:37:10,374 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2024-11-23 23:37:10,374 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2024-11-23 23:37:10,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-23 23:37:10,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:10,376 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] [2024-11-23 23:37:10,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:37:10,376 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:10,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1255064776, now seen corresponding path program 1 times [2024-11-23 23:37:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:10,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376977531] [2024-11-23 23:37:10,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:11,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376977531] [2024-11-23 23:37:11,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376977531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:11,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:37:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771016751] [2024-11-23 23:37:11,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:11,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:37:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:11,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:37:11,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:11,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-11-23 23:37:11,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 325 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-23 23:37:11,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:11,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-11-23 23:37:11,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:12,889 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2024-11-23 23:37:12,889 INFO L125 PetriNetUnfolderBase]: For 5071/5198 co-relation queries the response was YES. [2024-11-23 23:37:12,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 5071/5198 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35603 event pairs, 341 based on Foata normal form. 40/4406 useless extension candidates. Maximal degree in co-relation 11373. Up to 2190 conditions per place. [2024-11-23 23:37:12,941 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2024-11-23 23:37:12,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2024-11-23 23:37:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:37:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2024-11-23 23:37:12,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8855855855855855 [2024-11-23 23:37:12,946 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2024-11-23 23:37:12,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2024-11-23 23:37:12,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-23 23:37:12,984 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2024-11-23 23:37:12,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2494, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2024-11-23 23:37:12,986 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2024-11-23 23:37:12,986 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2024-11-23 23:37:12,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-23 23:37:12,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:12,987 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] [2024-11-23 23:37:12,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:37:12,988 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:12,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:12,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1184324549, now seen corresponding path program 1 times [2024-11-23 23:37:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922076367] [2024-11-23 23:37:12,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:12,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:14,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:14,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922076367] [2024-11-23 23:37:14,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922076367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:14,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:14,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:37:14,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891225234] [2024-11-23 23:37:14,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:14,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:37:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:14,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:37:14,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:37:16,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:16,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2494 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:16,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:16,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:16,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:18,278 INFO L124 PetriNetUnfolderBase]: 1227/4913 cut-off events. [2024-11-23 23:37:18,278 INFO L125 PetriNetUnfolderBase]: For 6168/6307 co-relation queries the response was YES. [2024-11-23 23:37:18,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13109 conditions, 4913 events. 1227/4913 cut-off events. For 6168/6307 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 41545 event pairs, 180 based on Foata normal form. 37/4873 useless extension candidates. Maximal degree in co-relation 12831. Up to 712 conditions per place. [2024-11-23 23:37:18,324 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2024-11-23 23:37:18,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2024-11-23 23:37:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:37:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:37:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2024-11-23 23:37:18,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810810810810811 [2024-11-23 23:37:18,330 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2024-11-23 23:37:18,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2024-11-23 23:37:18,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2024-11-23 23:37:18,405 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2024-11-23 23:37:18,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2492, PETRI_PLACES=284, PETRI_TRANSITIONS=424} [2024-11-23 23:37:18,407 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2024-11-23 23:37:18,407 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2024-11-23 23:37:18,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:18,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:18,408 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] [2024-11-23 23:37:18,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:37:18,409 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:18,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:18,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1989551105, now seen corresponding path program 2 times [2024-11-23 23:37:18,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:18,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895133883] [2024-11-23 23:37:18,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:37:18,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:18,454 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:37:18,454 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:19,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:19,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895133883] [2024-11-23 23:37:19,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895133883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:19,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:19,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:37:19,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304144893] [2024-11-23 23:37:19,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:19,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:37:19,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:19,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:37:19,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:37:21,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:21,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 424 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:21,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:21,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:21,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:24,139 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2024-11-23 23:37:24,140 INFO L125 PetriNetUnfolderBase]: For 12630/12930 co-relation queries the response was YES. [2024-11-23 23:37:24,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12630/12930 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 88685 event pairs, 325 based on Foata normal form. 99/9273 useless extension candidates. Maximal degree in co-relation 26194. Up to 1468 conditions per place. [2024-11-23 23:37:24,206 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2024-11-23 23:37:24,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2024-11-23 23:37:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:37:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:37:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-11-23 23:37:24,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-11-23 23:37:24,211 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2024-11-23 23:37:24,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2024-11-23 23:37:24,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:37:24,312 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2024-11-23 23:37:24,313 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2671, PETRI_PLACES=298, PETRI_TRANSITIONS=441} [2024-11-23 23:37:24,314 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2024-11-23 23:37:24,314 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2024-11-23 23:37:24,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:24,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:24,315 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] [2024-11-23 23:37:24,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:37:24,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:24,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash -353039779, now seen corresponding path program 3 times [2024-11-23 23:37:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:24,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756645681] [2024-11-23 23:37:24,317 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:37:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:24,352 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:37:24,352 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756645681] [2024-11-23 23:37:24,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756645681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:24,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:24,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:37:24,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305332938] [2024-11-23 23:37:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:24,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:37:24,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:24,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:37:24,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:37:27,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:27,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 441 transitions, 2671 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:27,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:27,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:27,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:30,353 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2024-11-23 23:37:30,353 INFO L125 PetriNetUnfolderBase]: For 16316/16768 co-relation queries the response was YES. [2024-11-23 23:37:30,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16316/16768 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 101825 event pairs, 352 based on Foata normal form. 106/10467 useless extension candidates. Maximal degree in co-relation 30805. Up to 1567 conditions per place. [2024-11-23 23:37:30,458 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2024-11-23 23:37:30,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2024-11-23 23:37:30,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:37:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:37:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2024-11-23 23:37:30,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8840840840840841 [2024-11-23 23:37:30,463 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2024-11-23 23:37:30,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2024-11-23 23:37:30,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-23 23:37:30,609 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2024-11-23 23:37:30,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2840, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2024-11-23 23:37:30,611 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2024-11-23 23:37:30,611 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2024-11-23 23:37:30,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:30,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:30,613 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] [2024-11-23 23:37:30,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:37:30,613 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:30,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1111480137, now seen corresponding path program 4 times [2024-11-23 23:37:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022535962] [2024-11-23 23:37:30,615 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:37:30,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:30,730 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:37:30,730 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:33,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022535962] [2024-11-23 23:37:33,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022535962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:33,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:33,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:37:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108968872] [2024-11-23 23:37:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:33,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:37:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:33,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:37:33,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:37:37,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 185 [2024-11-23 23:37:37,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2840 flow. Second operand has 15 states, 15 states have (on average 134.53333333333333) internal successors, (2018), 15 states have internal predecessors, (2018), 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) [2024-11-23 23:37:37,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:37,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 185 [2024-11-23 23:37:37,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:43,238 INFO L124 PetriNetUnfolderBase]: 4996/14906 cut-off events. [2024-11-23 23:37:43,239 INFO L125 PetriNetUnfolderBase]: For 37874/38352 co-relation queries the response was YES. [2024-11-23 23:37:43,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52486 conditions, 14906 events. 4996/14906 cut-off events. For 37874/38352 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 139732 event pairs, 972 based on Foata normal form. 174/14852 useless extension candidates. Maximal degree in co-relation 52186. Up to 3520 conditions per place. [2024-11-23 23:37:43,382 INFO L140 encePairwiseOnDemand]: 154/185 looper letters, 710 selfloop transitions, 147 changer transitions 8/1068 dead transitions. [2024-11-23 23:37:43,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 1068 transitions, 9513 flow [2024-11-23 23:37:43,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:37:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-23 23:37:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2580 transitions. [2024-11-23 23:37:43,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8203497615262321 [2024-11-23 23:37:43,388 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 17 states and 2580 transitions. [2024-11-23 23:37:43,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 1068 transitions, 9513 flow [2024-11-23 23:37:43,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1068 transitions, 9368 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-23 23:37:43,627 INFO L231 Difference]: Finished difference. Result has 337 places, 586 transitions, 4877 flow [2024-11-23 23:37:43,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4877, PETRI_PLACES=337, PETRI_TRANSITIONS=586} [2024-11-23 23:37:43,630 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 155 predicate places. [2024-11-23 23:37:43,630 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 586 transitions, 4877 flow [2024-11-23 23:37:43,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 134.53333333333333) internal successors, (2018), 15 states have internal predecessors, (2018), 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) [2024-11-23 23:37:43,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:43,632 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] [2024-11-23 23:37:43,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:37:43,632 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:43,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1847240484, now seen corresponding path program 1 times [2024-11-23 23:37:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:43,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064941912] [2024-11-23 23:37:43,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:43,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:44,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:44,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064941912] [2024-11-23 23:37:44,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064941912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:44,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:44,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:37:44,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149048092] [2024-11-23 23:37:44,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:44,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:37:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:44,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:37:44,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:37:46,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:46,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 586 transitions, 4877 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:46,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:46,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:46,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:50,125 INFO L124 PetriNetUnfolderBase]: 3556/13200 cut-off events. [2024-11-23 23:37:50,125 INFO L125 PetriNetUnfolderBase]: For 38940/39760 co-relation queries the response was YES. [2024-11-23 23:37:50,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44055 conditions, 13200 events. 3556/13200 cut-off events. For 38940/39760 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 132579 event pairs, 355 based on Foata normal form. 152/13141 useless extension candidates. Maximal degree in co-relation 43743. Up to 2012 conditions per place. [2024-11-23 23:37:50,235 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 145 selfloop transitions, 42 changer transitions 0/669 dead transitions. [2024-11-23 23:37:50,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 669 transitions, 5945 flow [2024-11-23 23:37:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:37:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:37:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-11-23 23:37:50,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-11-23 23:37:50,238 INFO L175 Difference]: Start difference. First operand has 337 places, 586 transitions, 4877 flow. Second operand 9 states and 1475 transitions. [2024-11-23 23:37:50,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 669 transitions, 5945 flow [2024-11-23 23:37:50,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 669 transitions, 5841 flow, removed 23 selfloop flow, removed 2 redundant places. [2024-11-23 23:37:50,466 INFO L231 Difference]: Finished difference. Result has 349 places, 602 transitions, 5152 flow [2024-11-23 23:37:50,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=4816, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5152, PETRI_PLACES=349, PETRI_TRANSITIONS=602} [2024-11-23 23:37:50,467 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 167 predicate places. [2024-11-23 23:37:50,468 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 602 transitions, 5152 flow [2024-11-23 23:37:50,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:37:50,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:50,469 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] [2024-11-23 23:37:50,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:37:50,470 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:50,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash -79349447, now seen corresponding path program 5 times [2024-11-23 23:37:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950038837] [2024-11-23 23:37:50,472 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:37:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:50,516 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:37:50,516 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-23 23:37:51,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950038837] [2024-11-23 23:37:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950038837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536018445] [2024-11-23 23:37:51,554 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:37:51,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:51,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:51,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:51,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:37:51,778 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:37:51,778 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:51,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 23:37:51,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:52,195 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 [2024-11-23 23:37:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:37:52,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:37:52,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536018445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:52,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:37:52,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-23 23:37:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836030583] [2024-11-23 23:37:52,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:52,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:37:52,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:52,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:37:52,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:37:54,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:37:54,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 602 transitions, 5152 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:37:54,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:37:54,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:37:54,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:37:58,959 INFO L124 PetriNetUnfolderBase]: 3875/14269 cut-off events. [2024-11-23 23:37:58,959 INFO L125 PetriNetUnfolderBase]: For 47172/47988 co-relation queries the response was YES. [2024-11-23 23:37:59,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49270 conditions, 14269 events. 3875/14269 cut-off events. For 47172/47988 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 145361 event pairs, 379 based on Foata normal form. 156/14220 useless extension candidates. Maximal degree in co-relation 48951. Up to 2295 conditions per place. [2024-11-23 23:37:59,099 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 165 selfloop transitions, 44 changer transitions 2/693 dead transitions. [2024-11-23 23:37:59,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 693 transitions, 6379 flow [2024-11-23 23:37:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:37:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 23:37:59,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1632 transitions. [2024-11-23 23:37:59,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8821621621621621 [2024-11-23 23:37:59,102 INFO L175 Difference]: Start difference. First operand has 349 places, 602 transitions, 5152 flow. Second operand 10 states and 1632 transitions. [2024-11-23 23:37:59,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 693 transitions, 6379 flow [2024-11-23 23:37:59,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 693 transitions, 6266 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-23 23:37:59,369 INFO L231 Difference]: Finished difference. Result has 362 places, 620 transitions, 5446 flow [2024-11-23 23:37:59,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5074, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5446, PETRI_PLACES=362, PETRI_TRANSITIONS=620} [2024-11-23 23:37:59,370 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 180 predicate places. [2024-11-23 23:37:59,370 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 620 transitions, 5446 flow [2024-11-23 23:37:59,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:37:59,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:37:59,371 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] [2024-11-23 23:37:59,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:37:59,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:37:59,572 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:37:59,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:59,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2088976947, now seen corresponding path program 6 times [2024-11-23 23:37:59,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:59,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36736071] [2024-11-23 23:37:59,573 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:37:59,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:59,604 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 23:37:59,604 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:00,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:00,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36736071] [2024-11-23 23:38:00,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36736071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:00,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:00,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:38:00,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595764135] [2024-11-23 23:38:00,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:00,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:38:00,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:00,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:38:00,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:01,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:01,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 620 transitions, 5446 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:01,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:01,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:01,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:38:06,623 INFO L124 PetriNetUnfolderBase]: 4240/15636 cut-off events. [2024-11-23 23:38:06,623 INFO L125 PetriNetUnfolderBase]: For 56341/57321 co-relation queries the response was YES. [2024-11-23 23:38:06,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54822 conditions, 15636 events. 4240/15636 cut-off events. For 56341/57321 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 162536 event pairs, 481 based on Foata normal form. 161/15552 useless extension candidates. Maximal degree in co-relation 54496. Up to 2435 conditions per place. [2024-11-23 23:38:07,057 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 160 selfloop transitions, 53 changer transitions 0/695 dead transitions. [2024-11-23 23:38:07,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 695 transitions, 6666 flow [2024-11-23 23:38:07,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:07,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:38:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2024-11-23 23:38:07,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8870870870870871 [2024-11-23 23:38:07,059 INFO L175 Difference]: Start difference. First operand has 362 places, 620 transitions, 5446 flow. Second operand 9 states and 1477 transitions. [2024-11-23 23:38:07,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 695 transitions, 6666 flow [2024-11-23 23:38:07,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 695 transitions, 6578 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-11-23 23:38:07,365 INFO L231 Difference]: Finished difference. Result has 374 places, 643 transitions, 5919 flow [2024-11-23 23:38:07,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5380, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5919, PETRI_PLACES=374, PETRI_TRANSITIONS=643} [2024-11-23 23:38:07,366 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 192 predicate places. [2024-11-23 23:38:07,366 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 643 transitions, 5919 flow [2024-11-23 23:38:07,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:07,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:38:07,367 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] [2024-11-23 23:38:07,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:38:07,367 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:38:07,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:07,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2063218377, now seen corresponding path program 7 times [2024-11-23 23:38:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:07,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424481128] [2024-11-23 23:38:07,368 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:38:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:07,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:07,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424481128] [2024-11-23 23:38:07,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424481128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:38:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666750737] [2024-11-23 23:38:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:07,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:38:07,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:07,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:38:07,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:08,850 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:08,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 643 transitions, 5919 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:08,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:08,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:08,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:38:14,062 INFO L124 PetriNetUnfolderBase]: 4850/17443 cut-off events. [2024-11-23 23:38:14,062 INFO L125 PetriNetUnfolderBase]: For 70807/71931 co-relation queries the response was YES. [2024-11-23 23:38:14,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63187 conditions, 17443 events. 4850/17443 cut-off events. For 70807/71931 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 185565 event pairs, 469 based on Foata normal form. 193/17385 useless extension candidates. Maximal degree in co-relation 62855. Up to 2832 conditions per place. [2024-11-23 23:38:14,272 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 189 selfloop transitions, 58 changer transitions 0/729 dead transitions. [2024-11-23 23:38:14,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 729 transitions, 7347 flow [2024-11-23 23:38:14,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:38:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2024-11-23 23:38:14,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8894894894894895 [2024-11-23 23:38:14,276 INFO L175 Difference]: Start difference. First operand has 374 places, 643 transitions, 5919 flow. Second operand 9 states and 1481 transitions. [2024-11-23 23:38:14,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 729 transitions, 7347 flow [2024-11-23 23:38:14,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 729 transitions, 7249 flow, removed 49 selfloop flow, removed 0 redundant places. [2024-11-23 23:38:14,759 INFO L231 Difference]: Finished difference. Result has 389 places, 661 transitions, 6340 flow [2024-11-23 23:38:14,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5821, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6340, PETRI_PLACES=389, PETRI_TRANSITIONS=661} [2024-11-23 23:38:14,760 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 207 predicate places. [2024-11-23 23:38:14,760 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 661 transitions, 6340 flow [2024-11-23 23:38:14,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:14,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:38:14,761 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] [2024-11-23 23:38:14,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:38:14,761 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:38:14,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1408650635, now seen corresponding path program 8 times [2024-11-23 23:38:14,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:14,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83071709] [2024-11-23 23:38:14,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:38:14,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:14,798 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:38:14,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:15,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83071709] [2024-11-23 23:38:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83071709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:15,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:15,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:38:15,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674072180] [2024-11-23 23:38:15,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:15,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:38:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:15,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:38:15,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:16,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:16,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 661 transitions, 6340 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:16,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:16,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:16,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:38:22,443 INFO L124 PetriNetUnfolderBase]: 4860/17632 cut-off events. [2024-11-23 23:38:22,443 INFO L125 PetriNetUnfolderBase]: For 77418/78695 co-relation queries the response was YES. [2024-11-23 23:38:22,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64511 conditions, 17632 events. 4860/17632 cut-off events. For 77418/78695 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 188662 event pairs, 438 based on Foata normal form. 295/17694 useless extension candidates. Maximal degree in co-relation 64171. Up to 2769 conditions per place. [2024-11-23 23:38:22,640 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 197 selfloop transitions, 75 changer transitions 0/754 dead transitions. [2024-11-23 23:38:22,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 754 transitions, 7758 flow [2024-11-23 23:38:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:38:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2024-11-23 23:38:22,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-11-23 23:38:22,643 INFO L175 Difference]: Start difference. First operand has 389 places, 661 transitions, 6340 flow. Second operand 9 states and 1470 transitions. [2024-11-23 23:38:22,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 754 transitions, 7758 flow [2024-11-23 23:38:23,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 754 transitions, 7668 flow, removed 45 selfloop flow, removed 0 redundant places. [2024-11-23 23:38:23,095 INFO L231 Difference]: Finished difference. Result has 401 places, 673 transitions, 6612 flow [2024-11-23 23:38:23,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6612, PETRI_PLACES=401, PETRI_TRANSITIONS=673} [2024-11-23 23:38:23,096 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 219 predicate places. [2024-11-23 23:38:23,096 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 673 transitions, 6612 flow [2024-11-23 23:38:23,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:23,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:38:23,097 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] [2024-11-23 23:38:23,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:38:23,098 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:38:23,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:23,099 INFO L85 PathProgramCache]: Analyzing trace with hash 503092793, now seen corresponding path program 9 times [2024-11-23 23:38:23,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:23,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704850673] [2024-11-23 23:38:23,099 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:38:23,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:23,126 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:38:23,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704850673] [2024-11-23 23:38:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704850673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:23,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:38:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166087836] [2024-11-23 23:38:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:23,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:38:23,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:23,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:38:23,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:25,473 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:25,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 673 transitions, 6612 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:25,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:25,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:25,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:38:31,146 INFO L124 PetriNetUnfolderBase]: 4576/16808 cut-off events. [2024-11-23 23:38:31,146 INFO L125 PetriNetUnfolderBase]: For 78762/79904 co-relation queries the response was YES. [2024-11-23 23:38:31,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62259 conditions, 16808 events. 4576/16808 cut-off events. For 78762/79904 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 177978 event pairs, 418 based on Foata normal form. 252/16835 useless extension candidates. Maximal degree in co-relation 61914. Up to 2599 conditions per place. [2024-11-23 23:38:31,332 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 198 selfloop transitions, 71 changer transitions 0/751 dead transitions. [2024-11-23 23:38:31,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 751 transitions, 7916 flow [2024-11-23 23:38:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:31,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:38:31,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1468 transitions. [2024-11-23 23:38:31,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8816816816816817 [2024-11-23 23:38:31,335 INFO L175 Difference]: Start difference. First operand has 401 places, 673 transitions, 6612 flow. Second operand 9 states and 1468 transitions. [2024-11-23 23:38:31,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 751 transitions, 7916 flow [2024-11-23 23:38:31,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 751 transitions, 7700 flow, removed 52 selfloop flow, removed 4 redundant places. [2024-11-23 23:38:31,868 INFO L231 Difference]: Finished difference. Result has 408 places, 676 transitions, 6644 flow [2024-11-23 23:38:31,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6408, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6644, PETRI_PLACES=408, PETRI_TRANSITIONS=676} [2024-11-23 23:38:31,869 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2024-11-23 23:38:31,869 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 676 transitions, 6644 flow [2024-11-23 23:38:31,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2024-11-23 23:38:31,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:38:31,870 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] [2024-11-23 23:38:31,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:38:31,870 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:38:31,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:31,872 INFO L85 PathProgramCache]: Analyzing trace with hash -489468787, now seen corresponding path program 10 times [2024-11-23 23:38:31,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:31,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307171918] [2024-11-23 23:38:31,873 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:38:31,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:31,910 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:38:31,910 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307171918] [2024-11-23 23:38:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307171918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:32,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:38:32,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553477203] [2024-11-23 23:38:32,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:32,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:38:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:32,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:38:32,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:38:34,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:34,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 676 transitions, 6644 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:38:34,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:34,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:34,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:38:40,120 INFO L124 PetriNetUnfolderBase]: 4575/16845 cut-off events. [2024-11-23 23:38:40,120 INFO L125 PetriNetUnfolderBase]: For 76427/77543 co-relation queries the response was YES. [2024-11-23 23:38:40,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62133 conditions, 16845 events. 4575/16845 cut-off events. For 76427/77543 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 178594 event pairs, 464 based on Foata normal form. 228/16829 useless extension candidates. Maximal degree in co-relation 61785. Up to 2620 conditions per place. [2024-11-23 23:38:40,319 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 190 selfloop transitions, 78 changer transitions 0/750 dead transitions. [2024-11-23 23:38:40,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 750 transitions, 7900 flow [2024-11-23 23:38:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:38:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 23:38:40,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2024-11-23 23:38:40,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778378378378379 [2024-11-23 23:38:40,322 INFO L175 Difference]: Start difference. First operand has 408 places, 676 transitions, 6644 flow. Second operand 10 states and 1624 transitions. [2024-11-23 23:38:40,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 750 transitions, 7900 flow [2024-11-23 23:38:40,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 750 transitions, 7750 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-23 23:38:40,771 INFO L231 Difference]: Finished difference. Result has 417 places, 687 transitions, 6908 flow [2024-11-23 23:38:40,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6512, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6908, PETRI_PLACES=417, PETRI_TRANSITIONS=687} [2024-11-23 23:38:40,773 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 235 predicate places. [2024-11-23 23:38:40,773 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 687 transitions, 6908 flow [2024-11-23 23:38:40,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:38:40,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:38:40,774 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] [2024-11-23 23:38:40,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:38:40,774 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-23 23:38:40,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:40,776 INFO L85 PathProgramCache]: Analyzing trace with hash -182554273, now seen corresponding path program 11 times [2024-11-23 23:38:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137306942] [2024-11-23 23:38:40,777 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:38:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:40,811 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:38:40,811 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-23 23:38:41,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137306942] [2024-11-23 23:38:41,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137306942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332594373] [2024-11-23 23:38:41,498 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:38:41,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:41,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:41,501 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:41,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f98015-ccc4-4609-b48b-3a09f7355976/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:38:41,720 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:38:41,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:41,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 23:38:41,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:42,139 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 [2024-11-23 23:38:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:38:42,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:42,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332594373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:42,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:42,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-23 23:38:42,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609599243] [2024-11-23 23:38:42,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:42,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:38:42,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:42,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:38:42,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:38:44,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-23 23:38:44,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 687 transitions, 6908 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:38:44,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:38:44,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-23 23:38:44,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand