./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd --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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:19:39,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:19:39,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:19:39,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:19:39,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:19:39,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:19:39,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:19:39,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:19:39,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:19:39,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:19:39,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:19:39,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:19:39,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:19:39,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:19:39,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:39,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:19:39,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:19:39,176 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_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd 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 -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-13 16:19:39,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:19:39,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:19:39,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:19:39,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:19:39,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:19:39,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i Unable to find full path for "g++" [2024-11-13 16:19:41,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:19:41,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:19:41,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-13 16:19:41,842 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/data/1bb3e02ef/96d95231af2e46dc96a397652913b2e2/FLAG96fd71ab7 [2024-11-13 16:19:41,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/data/1bb3e02ef/96d95231af2e46dc96a397652913b2e2 [2024-11-13 16:19:41,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:19:41,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:19:41,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:41,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:19:41,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:19:41,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:41" (1/1) ... [2024-11-13 16:19:41,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:41, skipping insertion in model container [2024-11-13 16:19:41,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:41" (1/1) ... [2024-11-13 16:19:41,922 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:19:42,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:42,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:19:42,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:42,669 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:19:42,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42 WrapperNode [2024-11-13 16:19:42,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:42,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:42,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:19:42,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:19:42,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,731 INFO L138 Inliner]: procedures = 266, calls = 100, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2024-11-13 16:19:42,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:42,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:19:42,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:19:42,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:19:42,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:19:42,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:19:42,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:19:42,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:19:42,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (1/1) ... [2024-11-13 16:19:42,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:42,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:42,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:19:42,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:19:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:19:42,863 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:19:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:19:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:19:42,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:19:42,865 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:19:43,061 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:19:43,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:19:43,550 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:19:43,550 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:19:43,588 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:19:43,591 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 16:19:43,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:43 BoogieIcfgContainer [2024-11-13 16:19:43,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:19:43,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:19:43,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:19:43,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:19:43,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:19:41" (1/3) ... [2024-11-13 16:19:43,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf32604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:43, skipping insertion in model container [2024-11-13 16:19:43,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:42" (2/3) ... [2024-11-13 16:19:43,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf32604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:43, skipping insertion in model container [2024-11-13 16:19:43,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:43" (3/3) ... [2024-11-13 16:19:43,602 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-13 16:19:43,620 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:19:43,621 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_02-funloop_norace.i that has 2 procedures, 187 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2024-11-13 16:19:43,622 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:19:43,729 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 16:19:43,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 192 transitions, 388 flow [2024-11-13 16:19:43,938 INFO L124 PetriNetUnfolderBase]: 6/191 cut-off events. [2024-11-13 16:19:43,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:19:43,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 191 events. 6/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 126 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2024-11-13 16:19:43,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 192 transitions, 388 flow [2024-11-13 16:19:43,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 191 transitions, 385 flow [2024-11-13 16:19:43,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:19:43,998 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;@45562927, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:19:44,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 16:19:44,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:19:44,060 INFO L124 PetriNetUnfolderBase]: 4/149 cut-off events. [2024-11-13 16:19:44,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:19:44,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:44,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:44,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:44,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:44,067 INFO L85 PathProgramCache]: Analyzing trace with hash 510433707, now seen corresponding path program 1 times [2024-11-13 16:19:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:44,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255615151] [2024-11-13 16:19:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:44,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255615151] [2024-11-13 16:19:44,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255615151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:44,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:44,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:44,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967501905] [2024-11-13 16:19:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:44,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:19:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:44,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:19:44,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:19:44,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 192 [2024-11-13 16:19:44,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 191 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2024-11-13 16:19:44,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:44,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 192 [2024-11-13 16:19:44,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:44,928 INFO L124 PetriNetUnfolderBase]: 13/276 cut-off events. [2024-11-13 16:19:44,928 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:19:44,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 276 events. 13/276 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 397 event pairs, 6 based on Foata normal form. 10/272 useless extension candidates. Maximal degree in co-relation 183. Up to 28 conditions per place. [2024-11-13 16:19:44,933 INFO L140 encePairwiseOnDemand]: 186/192 looper letters, 10 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2024-11-13 16:19:44,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 189 transitions, 405 flow [2024-11-13 16:19:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:19:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:19:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2024-11-13 16:19:44,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9565972222222222 [2024-11-13 16:19:44,961 INFO L175 Difference]: Start difference. First operand has 189 places, 191 transitions, 385 flow. Second operand 3 states and 551 transitions. [2024-11-13 16:19:44,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 189 transitions, 405 flow [2024-11-13 16:19:44,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 189 transitions, 404 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:19:44,979 INFO L231 Difference]: Finished difference. Result has 191 places, 189 transitions, 390 flow [2024-11-13 16:19:44,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=191, PETRI_TRANSITIONS=189} [2024-11-13 16:19:44,987 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 2 predicate places. [2024-11-13 16:19:44,987 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 189 transitions, 390 flow [2024-11-13 16:19:44,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2024-11-13 16:19:44,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:44,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:44,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:19:44,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:44,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:44,991 INFO L85 PathProgramCache]: Analyzing trace with hash -74459930, now seen corresponding path program 1 times [2024-11-13 16:19:44,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:44,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6422785] [2024-11-13 16:19:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:44,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:45,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6422785] [2024-11-13 16:19:45,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6422785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853138140] [2024-11-13 16:19:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:45,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:45,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:45,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:19:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:45,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:45,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:45,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:45,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853138140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:45,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:45,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:19:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503384389] [2024-11-13 16:19:45,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:45,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:19:45,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:45,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:19:45,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:45,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 192 [2024-11-13 16:19:45,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 189 transitions, 390 flow. Second operand has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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) [2024-11-13 16:19:45,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:45,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 192 [2024-11-13 16:19:45,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:45,924 INFO L124 PetriNetUnfolderBase]: 13/283 cut-off events. [2024-11-13 16:19:45,924 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:19:45,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 283 events. 13/283 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 393 event pairs, 6 based on Foata normal form. 2/271 useless extension candidates. Maximal degree in co-relation 221. Up to 28 conditions per place. [2024-11-13 16:19:45,931 INFO L140 encePairwiseOnDemand]: 186/192 looper letters, 14 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2024-11-13 16:19:45,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 197 transitions, 454 flow [2024-11-13 16:19:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:19:45,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:19:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1600 transitions. [2024-11-13 16:19:45,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-11-13 16:19:45,941 INFO L175 Difference]: Start difference. First operand has 191 places, 189 transitions, 390 flow. Second operand 9 states and 1600 transitions. [2024-11-13 16:19:45,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 197 transitions, 454 flow [2024-11-13 16:19:45,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 197 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:19:45,973 INFO L231 Difference]: Finished difference. Result has 201 places, 195 transitions, 438 flow [2024-11-13 16:19:45,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=438, PETRI_PLACES=201, PETRI_TRANSITIONS=195} [2024-11-13 16:19:45,974 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 12 predicate places. [2024-11-13 16:19:45,974 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 195 transitions, 438 flow [2024-11-13 16:19:45,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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) [2024-11-13 16:19:45,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:45,976 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:45,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:19:46,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:46,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:46,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:46,178 INFO L85 PathProgramCache]: Analyzing trace with hash 36836358, now seen corresponding path program 2 times [2024-11-13 16:19:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:46,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814966308] [2024-11-13 16:19:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:46,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:46,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814966308] [2024-11-13 16:19:46,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814966308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:46,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507660149] [2024-11-13 16:19:46,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:19:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:46,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:46,510 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:46,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:19:46,669 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:19:46,669 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:19:46,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:19:46,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:46,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:19:46,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 16:19:46,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:19:46,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-13 16:19:46,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:19:46,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-13 16:19:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 16:19:46,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:46,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507660149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:46,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:46,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 16:19:46,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537473101] [2024-11-13 16:19:46,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:46,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:19:46,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:46,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:19:46,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:19:47,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 192 [2024-11-13 16:19:47,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 195 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 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) [2024-11-13 16:19:47,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:47,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 192 [2024-11-13 16:19:47,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:47,468 INFO L124 PetriNetUnfolderBase]: 150/870 cut-off events. [2024-11-13 16:19:47,468 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 16:19:47,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 870 events. 150/870 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4732 event pairs, 62 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 1057. Up to 240 conditions per place. [2024-11-13 16:19:47,476 INFO L140 encePairwiseOnDemand]: 181/192 looper letters, 30 selfloop transitions, 22 changer transitions 0/224 dead transitions. [2024-11-13 16:19:47,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 224 transitions, 600 flow [2024-11-13 16:19:47,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:19:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:19:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1049 transitions. [2024-11-13 16:19:47,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9105902777777778 [2024-11-13 16:19:47,493 INFO L175 Difference]: Start difference. First operand has 201 places, 195 transitions, 438 flow. Second operand 6 states and 1049 transitions. [2024-11-13 16:19:47,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 224 transitions, 600 flow [2024-11-13 16:19:47,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 224 transitions, 594 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 16:19:47,499 INFO L231 Difference]: Finished difference. Result has 210 places, 216 transitions, 582 flow [2024-11-13 16:19:47,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=582, PETRI_PLACES=210, PETRI_TRANSITIONS=216} [2024-11-13 16:19:47,500 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 21 predicate places. [2024-11-13 16:19:47,500 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 216 transitions, 582 flow [2024-11-13 16:19:47,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 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) [2024-11-13 16:19:47,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:47,501 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:47,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:47,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:47,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:47,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -112125261, now seen corresponding path program 1 times [2024-11-13 16:19:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:47,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878763247] [2024-11-13 16:19:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:47,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:48,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:48,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878763247] [2024-11-13 16:19:48,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878763247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:48,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443061991] [2024-11-13 16:19:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:48,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:48,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:19:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:48,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:19:48,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:48,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:48,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443061991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:48,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:48,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 16:19:48,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76811398] [2024-11-13 16:19:48,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:48,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 16:19:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:19:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:19:48,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 192 [2024-11-13 16:19:48,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 216 transitions, 582 flow. Second operand has 18 states, 18 states have (on average 177.0) internal successors, (3186), 18 states have internal predecessors, (3186), 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) [2024-11-13 16:19:48,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:48,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 192 [2024-11-13 16:19:48,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:48,886 INFO L124 PetriNetUnfolderBase]: 61/616 cut-off events. [2024-11-13 16:19:48,887 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-13 16:19:48,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 616 events. 61/616 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2296 event pairs, 11 based on Foata normal form. 4/586 useless extension candidates. Maximal degree in co-relation 693. Up to 63 conditions per place. [2024-11-13 16:19:48,893 INFO L140 encePairwiseOnDemand]: 186/192 looper letters, 18 selfloop transitions, 21 changer transitions 0/234 dead transitions. [2024-11-13 16:19:48,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 234 transitions, 748 flow [2024-11-13 16:19:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 16:19:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 16:19:48,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3718 transitions. [2024-11-13 16:19:48,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9221230158730159 [2024-11-13 16:19:48,903 INFO L175 Difference]: Start difference. First operand has 210 places, 216 transitions, 582 flow. Second operand 21 states and 3718 transitions. [2024-11-13 16:19:48,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 234 transitions, 748 flow [2024-11-13 16:19:48,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 234 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:19:48,912 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 712 flow [2024-11-13 16:19:48,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=712, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2024-11-13 16:19:48,913 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 46 predicate places. [2024-11-13 16:19:48,913 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 712 flow [2024-11-13 16:19:48,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 177.0) internal successors, (3186), 18 states have internal predecessors, (3186), 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) [2024-11-13 16:19:48,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:48,916 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:48,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:19:49,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:49,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:49,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 456286451, now seen corresponding path program 2 times [2024-11-13 16:19:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:49,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986122851] [2024-11-13 16:19:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:49,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:49,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986122851] [2024-11-13 16:19:49,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986122851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:49,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196520800] [2024-11-13 16:19:49,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:19:49,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:49,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:49,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:49,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:19:49,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:19:49,881 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:19:49,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:19:49,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:49,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:19:49,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 16:19:49,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:19:49,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-13 16:19:50,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:19:50,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-13 16:19:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-13 16:19:50,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:50,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196520800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:50,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:50,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 16:19:50,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665545327] [2024-11-13 16:19:50,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:50,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:19:50,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:50,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:19:50,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:19:50,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 192 [2024-11-13 16:19:50,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 712 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 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) [2024-11-13 16:19:50,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:50,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 192 [2024-11-13 16:19:50,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:50,645 INFO L124 PetriNetUnfolderBase]: 206/1128 cut-off events. [2024-11-13 16:19:50,645 INFO L125 PetriNetUnfolderBase]: For 225/245 co-relation queries the response was YES. [2024-11-13 16:19:50,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1128 events. 206/1128 cut-off events. For 225/245 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6591 event pairs, 62 based on Foata normal form. 5/1071 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2024-11-13 16:19:50,652 INFO L140 encePairwiseOnDemand]: 181/192 looper letters, 47 selfloop transitions, 30 changer transitions 0/266 dead transitions. [2024-11-13 16:19:50,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 266 transitions, 982 flow [2024-11-13 16:19:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:19:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:19:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1049 transitions. [2024-11-13 16:19:50,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9105902777777778 [2024-11-13 16:19:50,655 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 712 flow. Second operand 6 states and 1049 transitions. [2024-11-13 16:19:50,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 266 transitions, 982 flow [2024-11-13 16:19:50,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 266 transitions, 958 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 16:19:50,664 INFO L231 Difference]: Finished difference. Result has 239 places, 258 transitions, 938 flow [2024-11-13 16:19:50,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=239, PETRI_TRANSITIONS=258} [2024-11-13 16:19:50,665 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 50 predicate places. [2024-11-13 16:19:50,665 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 258 transitions, 938 flow [2024-11-13 16:19:50,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 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) [2024-11-13 16:19:50,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:50,666 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:50,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:50,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:50,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:50,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash -43550133, now seen corresponding path program 1 times [2024-11-13 16:19:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:50,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237246609] [2024-11-13 16:19:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:51,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237246609] [2024-11-13 16:19:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237246609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507666245] [2024-11-13 16:19:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:51,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:51,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:51,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:51,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:19:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:51,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:19:51,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:51,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:19:52,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507666245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:52,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:52,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 16:19:52,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353946742] [2024-11-13 16:19:52,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:52,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 16:19:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:52,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 16:19:52,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:19:52,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 192 [2024-11-13 16:19:52,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 258 transitions, 938 flow. Second operand has 23 states, 23 states have (on average 177.08695652173913) internal successors, (4073), 23 states have internal predecessors, (4073), 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) [2024-11-13 16:19:52,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:52,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 192 [2024-11-13 16:19:52,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:52,692 INFO L124 PetriNetUnfolderBase]: 117/876 cut-off events. [2024-11-13 16:19:52,692 INFO L125 PetriNetUnfolderBase]: For 364/377 co-relation queries the response was YES. [2024-11-13 16:19:52,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 876 events. 117/876 cut-off events. For 364/377 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4335 event pairs, 14 based on Foata normal form. 8/847 useless extension candidates. Maximal degree in co-relation 1309. Up to 84 conditions per place. [2024-11-13 16:19:52,698 INFO L140 encePairwiseOnDemand]: 186/192 looper letters, 21 selfloop transitions, 30 changer transitions 0/275 dead transitions. [2024-11-13 16:19:52,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 275 transitions, 1162 flow [2024-11-13 16:19:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 16:19:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 16:19:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5304 transitions. [2024-11-13 16:19:52,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9208333333333333 [2024-11-13 16:19:52,710 INFO L175 Difference]: Start difference. First operand has 239 places, 258 transitions, 938 flow. Second operand 30 states and 5304 transitions. [2024-11-13 16:19:52,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 275 transitions, 1162 flow [2024-11-13 16:19:52,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 275 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:19:52,720 INFO L231 Difference]: Finished difference. Result has 272 places, 268 transitions, 1090 flow [2024-11-13 16:19:52,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1090, PETRI_PLACES=272, PETRI_TRANSITIONS=268} [2024-11-13 16:19:52,722 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 83 predicate places. [2024-11-13 16:19:52,722 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 268 transitions, 1090 flow [2024-11-13 16:19:52,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 177.08695652173913) internal successors, (4073), 23 states have internal predecessors, (4073), 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) [2024-11-13 16:19:52,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:52,725 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:52,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:19:52,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfe2fde-ed1b-4436-96fe-fa5867bb59cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 16:19:52,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:52,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1153643792, now seen corresponding path program 2 times [2024-11-13 16:19:52,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:52,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268103250] [2024-11-13 16:19:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:52,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:19:53,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:53,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268103250] [2024-11-13 16:19:53,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268103250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:53,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:53,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:19:53,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832840899] [2024-11-13 16:19:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:53,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:19:53,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:19:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:19:53,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 192 [2024-11-13 16:19:53,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 268 transitions, 1090 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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) [2024-11-13 16:19:53,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:53,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 192 [2024-11-13 16:19:53,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:54,477 INFO L124 PetriNetUnfolderBase]: 422/1683 cut-off events. [2024-11-13 16:19:54,477 INFO L125 PetriNetUnfolderBase]: For 1016/1058 co-relation queries the response was YES. [2024-11-13 16:19:54,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 1683 events. 422/1683 cut-off events. For 1016/1058 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10531 event pairs, 107 based on Foata normal form. 12/1604 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2024-11-13 16:19:54,489 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 76 selfloop transitions, 57 changer transitions 0/323 dead transitions. [2024-11-13 16:19:54,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 323 transitions, 1600 flow [2024-11-13 16:19:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:19:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:19:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1035 transitions. [2024-11-13 16:19:54,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8984375 [2024-11-13 16:19:54,494 INFO L175 Difference]: Start difference. First operand has 272 places, 268 transitions, 1090 flow. Second operand 6 states and 1035 transitions. [2024-11-13 16:19:54,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 323 transitions, 1600 flow [2024-11-13 16:19:54,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 323 transitions, 1554 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-13 16:19:54,510 INFO L231 Difference]: Finished difference. Result has 264 places, 315 transitions, 1542 flow [2024-11-13 16:19:54,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1542, PETRI_PLACES=264, PETRI_TRANSITIONS=315} [2024-11-13 16:19:54,512 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 75 predicate places. [2024-11-13 16:19:54,513 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 315 transitions, 1542 flow [2024-11-13 16:19:54,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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) [2024-11-13 16:19:54,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:54,514 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:54,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:19:54,515 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:54,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:54,515 INFO L85 PathProgramCache]: Analyzing trace with hash -222652231, now seen corresponding path program 1 times [2024-11-13 16:19:54,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:54,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943895418] [2024-11-13 16:19:54,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:54,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:19:55,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:55,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943895418] [2024-11-13 16:19:55,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943895418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:55,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:55,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:19:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070284738] [2024-11-13 16:19:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:55,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:19:55,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:55,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:19:55,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:19:55,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 192 [2024-11-13 16:19:55,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 315 transitions, 1542 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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) [2024-11-13 16:19:55,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:55,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 192 [2024-11-13 16:19:55,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:19:56,093 INFO L124 PetriNetUnfolderBase]: 542/2123 cut-off events. [2024-11-13 16:19:56,093 INFO L125 PetriNetUnfolderBase]: For 2369/2427 co-relation queries the response was YES. [2024-11-13 16:19:56,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5290 conditions, 2123 events. 542/2123 cut-off events. For 2369/2427 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14539 event pairs, 113 based on Foata normal form. 13/2050 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2024-11-13 16:19:56,111 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 113 selfloop transitions, 71 changer transitions 0/376 dead transitions. [2024-11-13 16:19:56,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 376 transitions, 2264 flow [2024-11-13 16:19:56,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:19:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:19:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1035 transitions. [2024-11-13 16:19:56,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8984375 [2024-11-13 16:19:56,114 INFO L175 Difference]: Start difference. First operand has 264 places, 315 transitions, 1542 flow. Second operand 6 states and 1035 transitions. [2024-11-13 16:19:56,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 376 transitions, 2264 flow [2024-11-13 16:19:56,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 376 transitions, 2200 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-13 16:19:56,141 INFO L231 Difference]: Finished difference. Result has 274 places, 368 transitions, 2154 flow [2024-11-13 16:19:56,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=1484, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2154, PETRI_PLACES=274, PETRI_TRANSITIONS=368} [2024-11-13 16:19:56,143 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 85 predicate places. [2024-11-13 16:19:56,143 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 368 transitions, 2154 flow [2024-11-13 16:19:56,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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) [2024-11-13 16:19:56,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:19:56,145 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:56,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:19:56,146 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:19:56,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1474776879, now seen corresponding path program 1 times [2024-11-13 16:19:56,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:56,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033113021] [2024-11-13 16:19:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:56,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:19:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:57,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033113021] [2024-11-13 16:19:57,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033113021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:57,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:57,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:19:57,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40752849] [2024-11-13 16:19:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:57,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:19:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:57,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:19:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:59,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:19:59,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 368 transitions, 2154 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:19:59,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:19:59,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:19:59,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:01,008 INFO L124 PetriNetUnfolderBase]: 1065/4224 cut-off events. [2024-11-13 16:20:01,008 INFO L125 PetriNetUnfolderBase]: For 5545/5674 co-relation queries the response was YES. [2024-11-13 16:20:01,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11585 conditions, 4224 events. 1065/4224 cut-off events. For 5545/5674 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 33485 event pairs, 161 based on Foata normal form. 43/4241 useless extension candidates. Maximal degree in co-relation 11278. Up to 580 conditions per place. [2024-11-13 16:20:01,047 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 65 selfloop transitions, 15 changer transitions 6/427 dead transitions. [2024-11-13 16:20:01,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 427 transitions, 2444 flow [2024-11-13 16:20:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:01,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1547 transitions. [2024-11-13 16:20:01,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8952546296296297 [2024-11-13 16:20:01,051 INFO L175 Difference]: Start difference. First operand has 274 places, 368 transitions, 2154 flow. Second operand 9 states and 1547 transitions. [2024-11-13 16:20:01,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 427 transitions, 2444 flow [2024-11-13 16:20:01,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 427 transitions, 2362 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-13 16:20:01,111 INFO L231 Difference]: Finished difference. Result has 289 places, 383 transitions, 2190 flow [2024-11-13 16:20:01,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2190, PETRI_PLACES=289, PETRI_TRANSITIONS=383} [2024-11-13 16:20:01,115 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 100 predicate places. [2024-11-13 16:20:01,115 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 383 transitions, 2190 flow [2024-11-13 16:20:01,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:01,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:01,116 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:01,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:20:01,116 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:01,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1658321895, now seen corresponding path program 2 times [2024-11-13 16:20:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:01,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157706145] [2024-11-13 16:20:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:01,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157706145] [2024-11-13 16:20:01,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157706145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:01,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:01,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:01,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077495768] [2024-11-13 16:20:01,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:01,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:04,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:04,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 383 transitions, 2190 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:04,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:04,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:04,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:06,647 INFO L124 PetriNetUnfolderBase]: 2043/7616 cut-off events. [2024-11-13 16:20:06,648 INFO L125 PetriNetUnfolderBase]: For 10785/11051 co-relation queries the response was YES. [2024-11-13 16:20:06,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22353 conditions, 7616 events. 2043/7616 cut-off events. For 10785/11051 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 68012 event pairs, 270 based on Foata normal form. 87/7650 useless extension candidates. Maximal degree in co-relation 22038. Up to 1199 conditions per place. [2024-11-13 16:20:06,750 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 110 selfloop transitions, 20 changer transitions 3/474 dead transitions. [2024-11-13 16:20:06,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 474 transitions, 2856 flow [2024-11-13 16:20:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1546 transitions. [2024-11-13 16:20:06,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8946759259259259 [2024-11-13 16:20:06,755 INFO L175 Difference]: Start difference. First operand has 289 places, 383 transitions, 2190 flow. Second operand 9 states and 1546 transitions. [2024-11-13 16:20:06,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 474 transitions, 2856 flow [2024-11-13 16:20:06,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 474 transitions, 2856 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:20:06,830 INFO L231 Difference]: Finished difference. Result has 304 places, 400 transitions, 2370 flow [2024-11-13 16:20:06,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2190, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2370, PETRI_PLACES=304, PETRI_TRANSITIONS=400} [2024-11-13 16:20:06,832 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 115 predicate places. [2024-11-13 16:20:06,832 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 400 transitions, 2370 flow [2024-11-13 16:20:06,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:06,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:06,834 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:06,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:20:06,834 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:06,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash -579568883, now seen corresponding path program 3 times [2024-11-13 16:20:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:06,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161701088] [2024-11-13 16:20:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:06,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:07,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161701088] [2024-11-13 16:20:07,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161701088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:07,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:07,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126941235] [2024-11-13 16:20:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:07,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:09,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:09,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 400 transitions, 2370 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:09,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:09,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:09,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:12,106 INFO L124 PetriNetUnfolderBase]: 2340/8699 cut-off events. [2024-11-13 16:20:12,106 INFO L125 PetriNetUnfolderBase]: For 14543/14940 co-relation queries the response was YES. [2024-11-13 16:20:12,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26834 conditions, 8699 events. 2340/8699 cut-off events. For 14543/14940 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 79297 event pairs, 290 based on Foata normal form. 92/8734 useless extension candidates. Maximal degree in co-relation 26511. Up to 1318 conditions per place. [2024-11-13 16:20:12,195 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 117 selfloop transitions, 22 changer transitions 4/484 dead transitions. [2024-11-13 16:20:12,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 484 transitions, 3154 flow [2024-11-13 16:20:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1551 transitions. [2024-11-13 16:20:12,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8975694444444444 [2024-11-13 16:20:12,199 INFO L175 Difference]: Start difference. First operand has 304 places, 400 transitions, 2370 flow. Second operand 9 states and 1551 transitions. [2024-11-13 16:20:12,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 484 transitions, 3154 flow [2024-11-13 16:20:12,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 484 transitions, 3116 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-13 16:20:12,311 INFO L231 Difference]: Finished difference. Result has 317 places, 412 transitions, 2539 flow [2024-11-13 16:20:12,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2356, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2539, PETRI_PLACES=317, PETRI_TRANSITIONS=412} [2024-11-13 16:20:12,312 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 128 predicate places. [2024-11-13 16:20:12,312 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 412 transitions, 2539 flow [2024-11-13 16:20:12,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:12,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:12,313 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:12,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:20:12,314 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:12,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 816355621, now seen corresponding path program 4 times [2024-11-13 16:20:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:12,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457919909] [2024-11-13 16:20:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:12,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:13,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:13,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457919909] [2024-11-13 16:20:13,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457919909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:13,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:13,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714484286] [2024-11-13 16:20:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:13,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:13,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:15,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:15,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 412 transitions, 2539 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:15,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:15,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:15,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:17,660 INFO L124 PetriNetUnfolderBase]: 2637/9660 cut-off events. [2024-11-13 16:20:17,660 INFO L125 PetriNetUnfolderBase]: For 18177/18589 co-relation queries the response was YES. [2024-11-13 16:20:17,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30545 conditions, 9660 events. 2637/9660 cut-off events. For 18177/18589 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 89876 event pairs, 291 based on Foata normal form. 107/9701 useless extension candidates. Maximal degree in co-relation 30216. Up to 1572 conditions per place. [2024-11-13 16:20:17,739 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 132 selfloop transitions, 27 changer transitions 2/502 dead transitions. [2024-11-13 16:20:17,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 502 transitions, 3488 flow [2024-11-13 16:20:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1551 transitions. [2024-11-13 16:20:17,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8975694444444444 [2024-11-13 16:20:17,745 INFO L175 Difference]: Start difference. First operand has 317 places, 412 transitions, 2539 flow. Second operand 9 states and 1551 transitions. [2024-11-13 16:20:17,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 502 transitions, 3488 flow [2024-11-13 16:20:17,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 502 transitions, 3409 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-13 16:20:17,883 INFO L231 Difference]: Finished difference. Result has 327 places, 424 transitions, 2715 flow [2024-11-13 16:20:17,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2513, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2715, PETRI_PLACES=327, PETRI_TRANSITIONS=424} [2024-11-13 16:20:17,886 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 138 predicate places. [2024-11-13 16:20:17,888 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 424 transitions, 2715 flow [2024-11-13 16:20:17,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:17,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:17,890 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:17,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:20:17,890 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1721550915, now seen corresponding path program 5 times [2024-11-13 16:20:17,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:17,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880173723] [2024-11-13 16:20:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:18,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:18,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880173723] [2024-11-13 16:20:18,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880173723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:18,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:18,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158149061] [2024-11-13 16:20:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:18,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:18,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:18,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:18,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:20,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:20,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 424 transitions, 2715 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:20,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:20,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:20,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:23,440 INFO L124 PetriNetUnfolderBase]: 2967/10891 cut-off events. [2024-11-13 16:20:23,441 INFO L125 PetriNetUnfolderBase]: For 23245/23769 co-relation queries the response was YES. [2024-11-13 16:20:23,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35175 conditions, 10891 events. 2967/10891 cut-off events. For 23245/23769 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 104275 event pairs, 321 based on Foata normal form. 101/10913 useless extension candidates. Maximal degree in co-relation 34841. Up to 1710 conditions per place. [2024-11-13 16:20:23,523 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 133 selfloop transitions, 29 changer transitions 2/505 dead transitions. [2024-11-13 16:20:23,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 505 transitions, 3694 flow [2024-11-13 16:20:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:23,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1554 transitions. [2024-11-13 16:20:23,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8993055555555556 [2024-11-13 16:20:23,526 INFO L175 Difference]: Start difference. First operand has 327 places, 424 transitions, 2715 flow. Second operand 9 states and 1554 transitions. [2024-11-13 16:20:23,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 505 transitions, 3694 flow [2024-11-13 16:20:23,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 505 transitions, 3603 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-13 16:20:23,677 INFO L231 Difference]: Finished difference. Result has 338 places, 439 transitions, 2953 flow [2024-11-13 16:20:23,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2674, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2953, PETRI_PLACES=338, PETRI_TRANSITIONS=439} [2024-11-13 16:20:23,679 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 149 predicate places. [2024-11-13 16:20:23,680 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 439 transitions, 2953 flow [2024-11-13 16:20:23,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:23,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:23,681 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:23,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:20:23,682 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:23,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash -830536079, now seen corresponding path program 6 times [2024-11-13 16:20:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691385912] [2024-11-13 16:20:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:23,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:24,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:24,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691385912] [2024-11-13 16:20:24,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691385912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:24,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:24,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:24,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832292079] [2024-11-13 16:20:24,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:24,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:24,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:24,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:26,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:26,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 439 transitions, 2953 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:26,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:26,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:26,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:29,012 INFO L124 PetriNetUnfolderBase]: 3289/12049 cut-off events. [2024-11-13 16:20:29,012 INFO L125 PetriNetUnfolderBase]: For 29308/29850 co-relation queries the response was YES. [2024-11-13 16:20:29,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39784 conditions, 12049 events. 3289/12049 cut-off events. For 29308/29850 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 118283 event pairs, 341 based on Foata normal form. 108/12073 useless extension candidates. Maximal degree in co-relation 39444. Up to 1968 conditions per place. [2024-11-13 16:20:29,091 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 149 selfloop transitions, 34 changer transitions 1/525 dead transitions. [2024-11-13 16:20:29,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 525 transitions, 4077 flow [2024-11-13 16:20:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1554 transitions. [2024-11-13 16:20:29,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8993055555555556 [2024-11-13 16:20:29,093 INFO L175 Difference]: Start difference. First operand has 338 places, 439 transitions, 2953 flow. Second operand 9 states and 1554 transitions. [2024-11-13 16:20:29,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 525 transitions, 4077 flow [2024-11-13 16:20:29,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 525 transitions, 3981 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-13 16:20:29,234 INFO L231 Difference]: Finished difference. Result has 350 places, 454 transitions, 3196 flow [2024-11-13 16:20:29,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=2894, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3196, PETRI_PLACES=350, PETRI_TRANSITIONS=454} [2024-11-13 16:20:29,235 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 161 predicate places. [2024-11-13 16:20:29,235 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 454 transitions, 3196 flow [2024-11-13 16:20:29,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:29,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:29,236 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:29,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:20:29,236 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:29,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1023891525, now seen corresponding path program 7 times [2024-11-13 16:20:29,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:29,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444762009] [2024-11-13 16:20:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:29,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:29,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444762009] [2024-11-13 16:20:29,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444762009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:29,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:29,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944830058] [2024-11-13 16:20:29,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:29,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:29,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:29,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:31,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:31,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 454 transitions, 3196 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:31,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:31,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:31,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:34,901 INFO L124 PetriNetUnfolderBase]: 3634/13260 cut-off events. [2024-11-13 16:20:34,901 INFO L125 PetriNetUnfolderBase]: For 37581/38199 co-relation queries the response was YES. [2024-11-13 16:20:34,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44970 conditions, 13260 events. 3634/13260 cut-off events. For 37581/38199 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 133275 event pairs, 416 based on Foata normal form. 96/13252 useless extension candidates. Maximal degree in co-relation 44624. Up to 2114 conditions per place. [2024-11-13 16:20:35,013 INFO L140 encePairwiseOnDemand]: 178/192 looper letters, 148 selfloop transitions, 36 changer transitions 0/525 dead transitions. [2024-11-13 16:20:35,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 525 transitions, 4293 flow [2024-11-13 16:20:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:35,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1556 transitions. [2024-11-13 16:20:35,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9004629629629629 [2024-11-13 16:20:35,015 INFO L175 Difference]: Start difference. First operand has 350 places, 454 transitions, 3196 flow. Second operand 9 states and 1556 transitions. [2024-11-13 16:20:35,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 525 transitions, 4293 flow [2024-11-13 16:20:35,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 525 transitions, 4193 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-13 16:20:35,172 INFO L231 Difference]: Finished difference. Result has 363 places, 473 transitions, 3546 flow [2024-11-13 16:20:35,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=3118, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3546, PETRI_PLACES=363, PETRI_TRANSITIONS=473} [2024-11-13 16:20:35,173 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 174 predicate places. [2024-11-13 16:20:35,173 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 473 transitions, 3546 flow [2024-11-13 16:20:35,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:35,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:35,174 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:35,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:20:35,174 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:35,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash 155239279, now seen corresponding path program 8 times [2024-11-13 16:20:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:35,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384355993] [2024-11-13 16:20:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:35,635 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:35,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:35,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384355993] [2024-11-13 16:20:35,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384355993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:35,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:35,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747617277] [2024-11-13 16:20:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:35,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:35,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:36,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:36,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 473 transitions, 3546 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:36,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:36,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:36,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:40,360 INFO L124 PetriNetUnfolderBase]: 4229/15259 cut-off events. [2024-11-13 16:20:40,361 INFO L125 PetriNetUnfolderBase]: For 48531/49298 co-relation queries the response was YES. [2024-11-13 16:20:40,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52797 conditions, 15259 events. 4229/15259 cut-off events. For 48531/49298 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 158941 event pairs, 427 based on Foata normal form. 127/15274 useless extension candidates. Maximal degree in co-relation 52444. Up to 2514 conditions per place. [2024-11-13 16:20:40,495 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 169 selfloop transitions, 45 changer transitions 0/555 dead transitions. [2024-11-13 16:20:40,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 555 transitions, 4849 flow [2024-11-13 16:20:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1558 transitions. [2024-11-13 16:20:40,497 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016203703703703 [2024-11-13 16:20:40,497 INFO L175 Difference]: Start difference. First operand has 363 places, 473 transitions, 3546 flow. Second operand 9 states and 1558 transitions. [2024-11-13 16:20:40,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 555 transitions, 4849 flow [2024-11-13 16:20:40,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 555 transitions, 4745 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-13 16:20:40,900 INFO L231 Difference]: Finished difference. Result has 378 places, 491 transitions, 3898 flow [2024-11-13 16:20:40,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=3442, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3898, PETRI_PLACES=378, PETRI_TRANSITIONS=491} [2024-11-13 16:20:40,901 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 189 predicate places. [2024-11-13 16:20:40,901 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 491 transitions, 3898 flow [2024-11-13 16:20:40,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:40,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:40,902 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:40,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:20:40,903 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:40,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:40,903 INFO L85 PathProgramCache]: Analyzing trace with hash 690451371, now seen corresponding path program 9 times [2024-11-13 16:20:40,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:40,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632012954] [2024-11-13 16:20:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:41,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632012954] [2024-11-13 16:20:41,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632012954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:41,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:41,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:41,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059751061] [2024-11-13 16:20:41,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:41,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:41,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:42,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:42,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 491 transitions, 3898 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:42,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:42,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:42,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:46,843 INFO L124 PetriNetUnfolderBase]: 4818/17291 cut-off events. [2024-11-13 16:20:46,844 INFO L125 PetriNetUnfolderBase]: For 60043/60910 co-relation queries the response was YES. [2024-11-13 16:20:46,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61038 conditions, 17291 events. 4818/17291 cut-off events. For 60043/60910 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186307 event pairs, 481 based on Foata normal form. 140/17307 useless extension candidates. Maximal degree in co-relation 60677. Up to 2857 conditions per place. [2024-11-13 16:20:46,998 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 184 selfloop transitions, 46 changer transitions 0/571 dead transitions. [2024-11-13 16:20:46,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 571 transitions, 5156 flow [2024-11-13 16:20:46,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1558 transitions. [2024-11-13 16:20:47,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016203703703703 [2024-11-13 16:20:47,001 INFO L175 Difference]: Start difference. First operand has 378 places, 491 transitions, 3898 flow. Second operand 9 states and 1558 transitions. [2024-11-13 16:20:47,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 571 transitions, 5156 flow [2024-11-13 16:20:47,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 571 transitions, 5070 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-13 16:20:47,296 INFO L231 Difference]: Finished difference. Result has 392 places, 508 transitions, 4221 flow [2024-11-13 16:20:47,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=3812, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4221, PETRI_PLACES=392, PETRI_TRANSITIONS=508} [2024-11-13 16:20:47,297 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 203 predicate places. [2024-11-13 16:20:47,297 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 508 transitions, 4221 flow [2024-11-13 16:20:47,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:47,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:47,298 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:47,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 16:20:47,298 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:47,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1463661301, now seen corresponding path program 10 times [2024-11-13 16:20:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127372486] [2024-11-13 16:20:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127372486] [2024-11-13 16:20:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127372486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:47,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:47,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278795916] [2024-11-13 16:20:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:47,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:49,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:49,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 508 transitions, 4221 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:49,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:49,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:49,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:20:53,932 INFO L124 PetriNetUnfolderBase]: 5106/18230 cut-off events. [2024-11-13 16:20:53,932 INFO L125 PetriNetUnfolderBase]: For 68068/69005 co-relation queries the response was YES. [2024-11-13 16:20:54,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65236 conditions, 18230 events. 5106/18230 cut-off events. For 68068/69005 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198962 event pairs, 509 based on Foata normal form. 157/18255 useless extension candidates. Maximal degree in co-relation 64868. Up to 3039 conditions per place. [2024-11-13 16:20:54,120 INFO L140 encePairwiseOnDemand]: 176/192 looper letters, 183 selfloop transitions, 53 changer transitions 0/577 dead transitions. [2024-11-13 16:20:54,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 577 transitions, 5523 flow [2024-11-13 16:20:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:20:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:20:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1560 transitions. [2024-11-13 16:20:54,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2024-11-13 16:20:54,122 INFO L175 Difference]: Start difference. First operand has 392 places, 508 transitions, 4221 flow. Second operand 9 states and 1560 transitions. [2024-11-13 16:20:54,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 577 transitions, 5523 flow [2024-11-13 16:20:54,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 577 transitions, 5370 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-13 16:20:54,490 INFO L231 Difference]: Finished difference. Result has 402 places, 522 transitions, 4500 flow [2024-11-13 16:20:54,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=4124, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4500, PETRI_PLACES=402, PETRI_TRANSITIONS=522} [2024-11-13 16:20:54,491 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 213 predicate places. [2024-11-13 16:20:54,491 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 522 transitions, 4500 flow [2024-11-13 16:20:54,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:54,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:20:54,492 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:20:54,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:20:54,492 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:20:54,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:20:54,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1886761343, now seen corresponding path program 11 times [2024-11-13 16:20:54,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:20:54,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397399541] [2024-11-13 16:20:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:20:54,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:20:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:20:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:20:55,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:20:55,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397399541] [2024-11-13 16:20:55,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397399541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:20:55,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:20:55,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:20:55,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552433743] [2024-11-13 16:20:55,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:55,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:20:55,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:20:55,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:20:55,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:20:56,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:20:56,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 522 transitions, 4500 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:20:56,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:20:56,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:20:56,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:21:01,189 INFO L124 PetriNetUnfolderBase]: 5112/18226 cut-off events. [2024-11-13 16:21:01,189 INFO L125 PetriNetUnfolderBase]: For 72903/73850 co-relation queries the response was YES. [2024-11-13 16:21:01,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65940 conditions, 18226 events. 5112/18226 cut-off events. For 72903/73850 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198937 event pairs, 506 based on Foata normal form. 165/18257 useless extension candidates. Maximal degree in co-relation 65568. Up to 3047 conditions per place. [2024-11-13 16:21:01,372 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 186 selfloop transitions, 57 changer transitions 0/584 dead transitions. [2024-11-13 16:21:01,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 584 transitions, 5726 flow [2024-11-13 16:21:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:21:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:21:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1561 transitions. [2024-11-13 16:21:01,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033564814814815 [2024-11-13 16:21:01,374 INFO L175 Difference]: Start difference. First operand has 402 places, 522 transitions, 4500 flow. Second operand 9 states and 1561 transitions. [2024-11-13 16:21:01,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 584 transitions, 5726 flow [2024-11-13 16:21:01,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 584 transitions, 5566 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-13 16:21:01,743 INFO L231 Difference]: Finished difference. Result has 411 places, 534 transitions, 4770 flow [2024-11-13 16:21:01,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=4364, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4770, PETRI_PLACES=411, PETRI_TRANSITIONS=534} [2024-11-13 16:21:01,744 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 222 predicate places. [2024-11-13 16:21:01,744 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 534 transitions, 4770 flow [2024-11-13 16:21:01,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:21:01,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:21:01,745 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:01,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:21:01,745 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:21:01,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1361593433, now seen corresponding path program 12 times [2024-11-13 16:21:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:01,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992238839] [2024-11-13 16:21:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:01,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:21:02,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:02,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992238839] [2024-11-13 16:21:02,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992238839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:02,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:02,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:21:02,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077457511] [2024-11-13 16:21:02,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:02,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:21:02,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:21:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:21:03,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:21:03,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 534 transitions, 4770 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:21:03,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:21:03,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:21:03,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:21:07,830 INFO L124 PetriNetUnfolderBase]: 5106/18237 cut-off events. [2024-11-13 16:21:07,831 INFO L125 PetriNetUnfolderBase]: For 77422/78436 co-relation queries the response was YES. [2024-11-13 16:21:08,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66464 conditions, 18237 events. 5106/18237 cut-off events. For 77422/78436 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199082 event pairs, 508 based on Foata normal form. 165/18269 useless extension candidates. Maximal degree in co-relation 66087. Up to 3035 conditions per place. [2024-11-13 16:21:08,061 INFO L140 encePairwiseOnDemand]: 177/192 looper letters, 198 selfloop transitions, 52 changer transitions 0/591 dead transitions. [2024-11-13 16:21:08,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 591 transitions, 5974 flow [2024-11-13 16:21:08,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:21:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:21:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1564 transitions. [2024-11-13 16:21:08,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9050925925925926 [2024-11-13 16:21:08,064 INFO L175 Difference]: Start difference. First operand has 411 places, 534 transitions, 4770 flow. Second operand 9 states and 1564 transitions. [2024-11-13 16:21:08,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 591 transitions, 5974 flow [2024-11-13 16:21:08,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 591 transitions, 5764 flow, removed 75 selfloop flow, removed 3 redundant places. [2024-11-13 16:21:08,490 INFO L231 Difference]: Finished difference. Result has 420 places, 542 transitions, 4908 flow [2024-11-13 16:21:08,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=4634, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4908, PETRI_PLACES=420, PETRI_TRANSITIONS=542} [2024-11-13 16:21:08,491 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 231 predicate places. [2024-11-13 16:21:08,491 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 542 transitions, 4908 flow [2024-11-13 16:21:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:21:08,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:21:08,492 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 16:21:08,492 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 16:21:08,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1053192043, now seen corresponding path program 13 times [2024-11-13 16:21:08,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:08,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520180569] [2024-11-13 16:21:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:21:09,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:09,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520180569] [2024-11-13 16:21:09,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520180569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:09,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:09,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:21:09,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27191568] [2024-11-13 16:21:09,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:09,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:21:09,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:21:09,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:21:10,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2024-11-13 16:21:10,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 542 transitions, 4908 flow. Second operand has 9 states, 9 states have (on average 163.77777777777777) internal successors, (1474), 9 states have internal predecessors, (1474), 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) [2024-11-13 16:21:10,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:21:10,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2024-11-13 16:21:10,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand