./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.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_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/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_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/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_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:18:30,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:18:30,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:18:30,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:18:30,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:18:30,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:18:30,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:18:30,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:18:30,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:18:30,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:18:30,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:18:30,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:18:30,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:18:30,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:18:30,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:18:30,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:18:30,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:18:30,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:18:30,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:18:30,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:18:30,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:18:30,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:18:30,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:18:30,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:18:30,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:18:30,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:18:30,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:18:30,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:18:30,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:18:30,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:18:30,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:18:30,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:18:30,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:18:30,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:18:30,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:18:30,733 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_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/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 -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2024-11-13 15:18:31,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:18:31,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:18:31,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:18:31,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:18:31,141 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:18:31,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i Unable to find full path for "g++" [2024-11-13 15:18:33,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:18:34,022 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:18:34,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2024-11-13 15:18:34,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/data/be4c5e56f/176cef1abc40418d9c6bfe8d18bc8161/FLAGd438ef014 [2024-11-13 15:18:34,547 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/data/be4c5e56f/176cef1abc40418d9c6bfe8d18bc8161 [2024-11-13 15:18:34,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:18:34,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:18:34,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:18:34,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:18:34,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:18:34,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:18:34" (1/1) ... [2024-11-13 15:18:34,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210deecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:34, skipping insertion in model container [2024-11-13 15:18:34,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:18:34" (1/1) ... [2024-11-13 15:18:34,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:18:35,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:18:35,452 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:18:35,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:18:35,681 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:18:35,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35 WrapperNode [2024-11-13 15:18:35,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:18:35,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:18:35,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:18:35,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:18:35,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,793 INFO L138 Inliner]: procedures = 369, calls = 51, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 205 [2024-11-13 15:18:35,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:18:35,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:18:35,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:18:35,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:18:35,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:18:35,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:18:35,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:18:35,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:18:35,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (1/1) ... [2024-11-13 15:18:35,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:18:35,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:18:35,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:18:35,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5b89b-97db-42c4-95b3-f65aa9b2d10a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:18:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 15:18:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:18:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:18:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:18:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:18:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:18:35,987 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 15:18:36,282 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:18:36,285 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:18:37,267 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:18:37,268 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:18:37,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:18:37,315 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:18:37,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:18:37 BoogieIcfgContainer [2024-11-13 15:18:37,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:18:37,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:18:37,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:18:37,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:18:37,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:18:34" (1/3) ... [2024-11-13 15:18:37,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b581ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:18:37, skipping insertion in model container [2024-11-13 15:18:37,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:18:35" (2/3) ... [2024-11-13 15:18:37,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b581ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:18:37, skipping insertion in model container [2024-11-13 15:18:37,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:18:37" (3/3) ... [2024-11-13 15:18:37,328 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2024-11-13 15:18:37,347 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:18:37,349 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_04-list2_nr.i that has 2 procedures, 310 locations, 1 initial locations, 0 loop locations, and 30 error locations. [2024-11-13 15:18:37,350 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:18:37,502 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:18:37,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 309 transitions, 622 flow [2024-11-13 15:18:37,784 INFO L124 PetriNetUnfolderBase]: 0/308 cut-off events. [2024-11-13 15:18:37,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:37,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 308 events. 0/308 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 162 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 15:18:37,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 313 places, 309 transitions, 622 flow [2024-11-13 15:18:37,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 308 transitions, 619 flow [2024-11-13 15:18:37,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:18:37,827 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;@29f029b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:18:37,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-13 15:18:37,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:18:37,840 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-11-13 15:18:37,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:37,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:37,845 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] [2024-11-13 15:18:37,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:37,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash 40853792, now seen corresponding path program 1 times [2024-11-13 15:18:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:37,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635480955] [2024-11-13 15:18:37,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:37,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:39,146 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 15:18:39,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:39,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635480955] [2024-11-13 15:18:39,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635480955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:39,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:39,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:39,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6839422] [2024-11-13 15:18:39,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:39,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:39,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:39,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:40,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 309 [2024-11-13 15:18:40,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 308 transitions, 619 flow. Second operand has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 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 15:18:40,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:40,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 309 [2024-11-13 15:18:40,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:41,526 INFO L124 PetriNetUnfolderBase]: 560/2360 cut-off events. [2024-11-13 15:18:41,526 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:18:41,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3582 conditions, 2360 events. 560/2360 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14905 event pairs, 560 based on Foata normal form. 0/2150 useless extension candidates. Maximal degree in co-relation 3353. Up to 1198 conditions per place. [2024-11-13 15:18:41,551 INFO L140 encePairwiseOnDemand]: 285/309 looper letters, 77 selfloop transitions, 20 changer transitions 0/304 dead transitions. [2024-11-13 15:18:41,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 304 transitions, 805 flow [2024-11-13 15:18:41,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:41,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1349 transitions. [2024-11-13 15:18:41,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7276159654800431 [2024-11-13 15:18:41,580 INFO L175 Difference]: Start difference. First operand has 312 places, 308 transitions, 619 flow. Second operand 6 states and 1349 transitions. [2024-11-13 15:18:41,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 304 transitions, 805 flow [2024-11-13 15:18:41,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 304 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:18:41,599 INFO L231 Difference]: Finished difference. Result has 312 places, 304 transitions, 650 flow [2024-11-13 15:18:41,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=312, PETRI_TRANSITIONS=304} [2024-11-13 15:18:41,607 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 0 predicate places. [2024-11-13 15:18:41,608 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 304 transitions, 650 flow [2024-11-13 15:18:41,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 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 15:18:41,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:41,610 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] [2024-11-13 15:18:41,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:18:41,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:41,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:41,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1115247708, now seen corresponding path program 1 times [2024-11-13 15:18:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:41,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655825858] [2024-11-13 15:18:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:41,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:42,348 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 15:18:42,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:42,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655825858] [2024-11-13 15:18:42,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655825858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:42,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:42,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:42,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024894366] [2024-11-13 15:18:42,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:42,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:42,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:42,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:42,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:43,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 309 [2024-11-13 15:18:43,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 304 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 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 15:18:43,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:43,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 309 [2024-11-13 15:18:43,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:44,353 INFO L124 PetriNetUnfolderBase]: 560/2353 cut-off events. [2024-11-13 15:18:44,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:44,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 2353 events. 560/2353 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14912 event pairs, 560 based on Foata normal form. 0/2146 useless extension candidates. Maximal degree in co-relation 3391. Up to 1198 conditions per place. [2024-11-13 15:18:44,371 INFO L140 encePairwiseOnDemand]: 285/309 looper letters, 77 selfloop transitions, 20 changer transitions 0/300 dead transitions. [2024-11-13 15:18:44,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 300 transitions, 836 flow [2024-11-13 15:18:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1349 transitions. [2024-11-13 15:18:44,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7276159654800431 [2024-11-13 15:18:44,378 INFO L175 Difference]: Start difference. First operand has 312 places, 304 transitions, 650 flow. Second operand 6 states and 1349 transitions. [2024-11-13 15:18:44,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 300 transitions, 836 flow [2024-11-13 15:18:44,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 300 transitions, 796 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:18:44,394 INFO L231 Difference]: Finished difference. Result has 308 places, 300 transitions, 642 flow [2024-11-13 15:18:44,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=642, PETRI_PLACES=308, PETRI_TRANSITIONS=300} [2024-11-13 15:18:44,398 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -4 predicate places. [2024-11-13 15:18:44,398 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 300 transitions, 642 flow [2024-11-13 15:18:44,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 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 15:18:44,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:44,400 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] [2024-11-13 15:18:44,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:18:44,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:44,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1318597770, now seen corresponding path program 1 times [2024-11-13 15:18:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:44,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456795101] [2024-11-13 15:18:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:44,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:44,507 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 15:18:44,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:44,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456795101] [2024-11-13 15:18:44,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456795101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:44,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:44,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:18:44,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163896317] [2024-11-13 15:18:44,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:44,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:44,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:44,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:44,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:44,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 309 [2024-11-13 15:18:44,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 300 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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 15:18:44,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:44,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 309 [2024-11-13 15:18:44,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:44,774 INFO L124 PetriNetUnfolderBase]: 30/749 cut-off events. [2024-11-13 15:18:44,775 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:44,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 749 events. 30/749 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2664 event pairs, 30 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 671. Up to 78 conditions per place. [2024-11-13 15:18:44,779 INFO L140 encePairwiseOnDemand]: 306/309 looper letters, 17 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2024-11-13 15:18:44,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 299 transitions, 678 flow [2024-11-13 15:18:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:18:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 887 transitions. [2024-11-13 15:18:44,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9568500539374326 [2024-11-13 15:18:44,783 INFO L175 Difference]: Start difference. First operand has 308 places, 300 transitions, 642 flow. Second operand 3 states and 887 transitions. [2024-11-13 15:18:44,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 299 transitions, 678 flow [2024-11-13 15:18:44,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 299 transitions, 638 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:18:44,790 INFO L231 Difference]: Finished difference. Result has 304 places, 299 transitions, 604 flow [2024-11-13 15:18:44,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=304, PETRI_TRANSITIONS=299} [2024-11-13 15:18:44,792 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -8 predicate places. [2024-11-13 15:18:44,792 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 299 transitions, 604 flow [2024-11-13 15:18:44,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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 15:18:44,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:44,794 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] [2024-11-13 15:18:44,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:18:44,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:44,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash 672267698, now seen corresponding path program 1 times [2024-11-13 15:18:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:44,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236806787] [2024-11-13 15:18:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:44,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:44,881 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 15:18:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:44,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236806787] [2024-11-13 15:18:44,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236806787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:44,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:44,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:18:44,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413613276] [2024-11-13 15:18:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:44,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:44,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:44,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 309 [2024-11-13 15:18:44,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 299 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 15:18:44,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:44,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 309 [2024-11-13 15:18:44,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:45,184 INFO L124 PetriNetUnfolderBase]: 36/781 cut-off events. [2024-11-13 15:18:45,184 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:18:45,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 781 events. 36/781 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2992 event pairs, 36 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 813. Up to 89 conditions per place. [2024-11-13 15:18:45,188 INFO L140 encePairwiseOnDemand]: 304/309 looper letters, 17 selfloop transitions, 1 changer transitions 0/295 dead transitions. [2024-11-13 15:18:45,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 295 transitions, 632 flow [2024-11-13 15:18:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:45,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:18:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2024-11-13 15:18:45,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9525350593311759 [2024-11-13 15:18:45,191 INFO L175 Difference]: Start difference. First operand has 304 places, 299 transitions, 604 flow. Second operand 3 states and 883 transitions. [2024-11-13 15:18:45,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 295 transitions, 632 flow [2024-11-13 15:18:45,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 295 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:18:45,197 INFO L231 Difference]: Finished difference. Result has 300 places, 295 transitions, 594 flow [2024-11-13 15:18:45,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=594, PETRI_PLACES=300, PETRI_TRANSITIONS=295} [2024-11-13 15:18:45,199 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -12 predicate places. [2024-11-13 15:18:45,199 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 295 transitions, 594 flow [2024-11-13 15:18:45,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 15:18:45,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:45,200 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] [2024-11-13 15:18:45,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:18:45,201 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:45,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1162053395, now seen corresponding path program 1 times [2024-11-13 15:18:45,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:45,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188819852] [2024-11-13 15:18:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:45,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:46,009 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 15:18:46,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:46,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188819852] [2024-11-13 15:18:46,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188819852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:46,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:46,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055367151] [2024-11-13 15:18:46,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:46,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:46,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:46,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:46,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:46,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 309 [2024-11-13 15:18:46,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 295 transitions, 594 flow. Second operand has 6 states, 6 states have (on average 214.16666666666666) internal successors, (1285), 6 states have internal predecessors, (1285), 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 15:18:46,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:46,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 309 [2024-11-13 15:18:46,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:47,505 INFO L124 PetriNetUnfolderBase]: 638/2550 cut-off events. [2024-11-13 15:18:47,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:47,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3930 conditions, 2550 events. 638/2550 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16274 event pairs, 638 based on Foata normal form. 0/2348 useless extension candidates. Maximal degree in co-relation 3855. Up to 1370 conditions per place. [2024-11-13 15:18:47,519 INFO L140 encePairwiseOnDemand]: 303/309 looper letters, 93 selfloop transitions, 5 changer transitions 0/294 dead transitions. [2024-11-13 15:18:47,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 294 transitions, 788 flow [2024-11-13 15:18:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2024-11-13 15:18:47,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7330097087378641 [2024-11-13 15:18:47,525 INFO L175 Difference]: Start difference. First operand has 300 places, 295 transitions, 594 flow. Second operand 6 states and 1359 transitions. [2024-11-13 15:18:47,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 294 transitions, 788 flow [2024-11-13 15:18:47,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 294 transitions, 787 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:18:47,531 INFO L231 Difference]: Finished difference. Result has 303 places, 294 transitions, 601 flow [2024-11-13 15:18:47,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=303, PETRI_TRANSITIONS=294} [2024-11-13 15:18:47,533 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -9 predicate places. [2024-11-13 15:18:47,533 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 294 transitions, 601 flow [2024-11-13 15:18:47,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.16666666666666) internal successors, (1285), 6 states have internal predecessors, (1285), 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 15:18:47,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:47,535 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] [2024-11-13 15:18:47,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:18:47,535 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:47,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:47,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2026788999, now seen corresponding path program 1 times [2024-11-13 15:18:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:47,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201398086] [2024-11-13 15:18:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:47,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:47,667 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 15:18:47,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201398086] [2024-11-13 15:18:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201398086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:18:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365949540] [2024-11-13 15:18:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:47,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:47,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:47,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 309 [2024-11-13 15:18:47,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 294 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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 15:18:47,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:47,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 309 [2024-11-13 15:18:47,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:47,879 INFO L124 PetriNetUnfolderBase]: 30/737 cut-off events. [2024-11-13 15:18:47,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:47,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 737 events. 30/737 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2679 event pairs, 30 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 762. Up to 78 conditions per place. [2024-11-13 15:18:47,883 INFO L140 encePairwiseOnDemand]: 306/309 looper letters, 17 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-11-13 15:18:47,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 293 transitions, 637 flow [2024-11-13 15:18:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:18:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 887 transitions. [2024-11-13 15:18:47,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9568500539374326 [2024-11-13 15:18:47,886 INFO L175 Difference]: Start difference. First operand has 303 places, 294 transitions, 601 flow. Second operand 3 states and 887 transitions. [2024-11-13 15:18:47,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 293 transitions, 637 flow [2024-11-13 15:18:47,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 293 transitions, 627 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:18:47,893 INFO L231 Difference]: Finished difference. Result has 299 places, 293 transitions, 593 flow [2024-11-13 15:18:47,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=299, PETRI_TRANSITIONS=293} [2024-11-13 15:18:47,896 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -13 predicate places. [2024-11-13 15:18:47,897 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 293 transitions, 593 flow [2024-11-13 15:18:47,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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 15:18:47,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:47,898 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] [2024-11-13 15:18:47,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:18:47,898 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:47,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:47,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1079060366, now seen corresponding path program 1 times [2024-11-13 15:18:47,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:47,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445125631] [2024-11-13 15:18:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:47,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:48,009 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 15:18:48,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:48,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445125631] [2024-11-13 15:18:48,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445125631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:48,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:48,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:18:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866593884] [2024-11-13 15:18:48,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:48,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:18:48,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:48,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:18:48,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:18:48,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 309 [2024-11-13 15:18:48,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 293 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 15:18:48,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:48,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 309 [2024-11-13 15:18:48,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:48,185 INFO L124 PetriNetUnfolderBase]: 36/765 cut-off events. [2024-11-13 15:18:48,186 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:18:48,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 765 events. 36/765 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2916 event pairs, 36 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 799. Up to 89 conditions per place. [2024-11-13 15:18:48,190 INFO L140 encePairwiseOnDemand]: 304/309 looper letters, 17 selfloop transitions, 1 changer transitions 0/289 dead transitions. [2024-11-13 15:18:48,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 289 transitions, 621 flow [2024-11-13 15:18:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:18:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:18:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2024-11-13 15:18:48,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9525350593311759 [2024-11-13 15:18:48,194 INFO L175 Difference]: Start difference. First operand has 299 places, 293 transitions, 593 flow. Second operand 3 states and 883 transitions. [2024-11-13 15:18:48,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 289 transitions, 621 flow [2024-11-13 15:18:48,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 289 transitions, 617 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:18:48,201 INFO L231 Difference]: Finished difference. Result has 295 places, 289 transitions, 583 flow [2024-11-13 15:18:48,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=583, PETRI_PLACES=295, PETRI_TRANSITIONS=289} [2024-11-13 15:18:48,203 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -17 predicate places. [2024-11-13 15:18:48,204 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 289 transitions, 583 flow [2024-11-13 15:18:48,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 15:18:48,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:48,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:18:48,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -475309157, now seen corresponding path program 1 times [2024-11-13 15:18:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312387331] [2024-11-13 15:18:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:48,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:49,645 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 15:18:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312387331] [2024-11-13 15:18:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312387331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:49,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:49,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700650181] [2024-11-13 15:18:49,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:49,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:49,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:50,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 309 [2024-11-13 15:18:50,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 289 transitions, 583 flow. Second operand has 6 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 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 15:18:50,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:50,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 309 [2024-11-13 15:18:50,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:51,124 INFO L124 PetriNetUnfolderBase]: 638/2459 cut-off events. [2024-11-13 15:18:51,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:18:51,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3840 conditions, 2459 events. 638/2459 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15409 event pairs, 638 based on Foata normal form. 0/2312 useless extension candidates. Maximal degree in co-relation 3766. Up to 1370 conditions per place. [2024-11-13 15:18:51,139 INFO L140 encePairwiseOnDemand]: 303/309 looper letters, 93 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2024-11-13 15:18:51,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 288 transitions, 777 flow [2024-11-13 15:18:51,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2024-11-13 15:18:51,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7330097087378641 [2024-11-13 15:18:51,145 INFO L175 Difference]: Start difference. First operand has 295 places, 289 transitions, 583 flow. Second operand 6 states and 1359 transitions. [2024-11-13 15:18:51,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 288 transitions, 777 flow [2024-11-13 15:18:51,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 288 transitions, 776 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:18:51,157 INFO L231 Difference]: Finished difference. Result has 298 places, 288 transitions, 590 flow [2024-11-13 15:18:51,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=590, PETRI_PLACES=298, PETRI_TRANSITIONS=288} [2024-11-13 15:18:51,158 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -14 predicate places. [2024-11-13 15:18:51,158 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 288 transitions, 590 flow [2024-11-13 15:18:51,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 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 15:18:51,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:51,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:51,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:18:51,162 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:51,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:51,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1067263636, now seen corresponding path program 1 times [2024-11-13 15:18:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:51,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591556351] [2024-11-13 15:18:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:51,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:52,242 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 15:18:52,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:52,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591556351] [2024-11-13 15:18:52,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591556351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:52,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:52,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129620181] [2024-11-13 15:18:52,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:52,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:52,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:53,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 309 [2024-11-13 15:18:53,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 288 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 15:18:53,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:53,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 309 [2024-11-13 15:18:53,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:53,709 INFO L124 PetriNetUnfolderBase]: 232/1818 cut-off events. [2024-11-13 15:18:53,709 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:18:53,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 1818 events. 232/1818 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11437 event pairs, 20 based on Foata normal form. 0/1694 useless extension candidates. Maximal degree in co-relation 2310. Up to 313 conditions per place. [2024-11-13 15:18:53,719 INFO L140 encePairwiseOnDemand]: 290/309 looper letters, 108 selfloop transitions, 38 changer transitions 0/362 dead transitions. [2024-11-13 15:18:53,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 362 transitions, 1030 flow [2024-11-13 15:18:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1570 transitions. [2024-11-13 15:18:53,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468176914778857 [2024-11-13 15:18:53,725 INFO L175 Difference]: Start difference. First operand has 298 places, 288 transitions, 590 flow. Second operand 6 states and 1570 transitions. [2024-11-13 15:18:53,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 362 transitions, 1030 flow [2024-11-13 15:18:53,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 362 transitions, 1020 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:18:53,735 INFO L231 Difference]: Finished difference. Result has 302 places, 324 transitions, 838 flow [2024-11-13 15:18:53,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=838, PETRI_PLACES=302, PETRI_TRANSITIONS=324} [2024-11-13 15:18:53,737 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -10 predicate places. [2024-11-13 15:18:53,738 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 324 transitions, 838 flow [2024-11-13 15:18:53,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 15:18:53,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:53,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:53,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:18:53,740 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:53,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash -455532296, now seen corresponding path program 1 times [2024-11-13 15:18:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:53,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901708543] [2024-11-13 15:18:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:53,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:54,656 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 15:18:54,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:54,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901708543] [2024-11-13 15:18:54,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901708543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:54,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590968512] [2024-11-13 15:18:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:54,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:54,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:54,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:55,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 309 [2024-11-13 15:18:55,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 324 transitions, 838 flow. Second operand has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 15:18:55,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:55,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 309 [2024-11-13 15:18:55,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:56,062 INFO L124 PetriNetUnfolderBase]: 185/1622 cut-off events. [2024-11-13 15:18:56,063 INFO L125 PetriNetUnfolderBase]: For 201/206 co-relation queries the response was YES. [2024-11-13 15:18:56,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 1622 events. 185/1622 cut-off events. For 201/206 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9958 event pairs, 75 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 2326. Up to 362 conditions per place. [2024-11-13 15:18:56,072 INFO L140 encePairwiseOnDemand]: 303/309 looper letters, 104 selfloop transitions, 5 changer transitions 0/339 dead transitions. [2024-11-13 15:18:56,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 339 transitions, 1086 flow [2024-11-13 15:18:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1540 transitions. [2024-11-13 15:18:56,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8306364617044228 [2024-11-13 15:18:56,077 INFO L175 Difference]: Start difference. First operand has 302 places, 324 transitions, 838 flow. Second operand 6 states and 1540 transitions. [2024-11-13 15:18:56,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 339 transitions, 1086 flow [2024-11-13 15:18:56,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 339 transitions, 1086 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:18:56,090 INFO L231 Difference]: Finished difference. Result has 306 places, 323 transitions, 846 flow [2024-11-13 15:18:56,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=846, PETRI_PLACES=306, PETRI_TRANSITIONS=323} [2024-11-13 15:18:56,092 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -6 predicate places. [2024-11-13 15:18:56,093 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 323 transitions, 846 flow [2024-11-13 15:18:56,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 15:18:56,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:56,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:56,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:18:56,094 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:56,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:56,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1329065302, now seen corresponding path program 1 times [2024-11-13 15:18:56,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:56,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143424388] [2024-11-13 15:18:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:56,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:18:56,953 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 15:18:56,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:18:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143424388] [2024-11-13 15:18:56,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143424388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:18:56,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:18:56,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:18:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188960880] [2024-11-13 15:18:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:18:56,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:18:56,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:18:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:18:56,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:18:58,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 309 [2024-11-13 15:18:58,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 323 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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 15:18:58,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:18:58,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 309 [2024-11-13 15:18:58,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:18:59,068 INFO L124 PetriNetUnfolderBase]: 583/2979 cut-off events. [2024-11-13 15:18:59,068 INFO L125 PetriNetUnfolderBase]: For 703/710 co-relation queries the response was YES. [2024-11-13 15:18:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5066 conditions, 2979 events. 583/2979 cut-off events. For 703/710 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21909 event pairs, 69 based on Foata normal form. 0/2792 useless extension candidates. Maximal degree in co-relation 4987. Up to 804 conditions per place. [2024-11-13 15:18:59,090 INFO L140 encePairwiseOnDemand]: 287/309 looper letters, 120 selfloop transitions, 72 changer transitions 0/412 dead transitions. [2024-11-13 15:18:59,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 412 transitions, 1600 flow [2024-11-13 15:18:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:18:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:18:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1542 transitions. [2024-11-13 15:18:59,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8317152103559871 [2024-11-13 15:18:59,097 INFO L175 Difference]: Start difference. First operand has 306 places, 323 transitions, 846 flow. Second operand 6 states and 1542 transitions. [2024-11-13 15:18:59,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 412 transitions, 1600 flow [2024-11-13 15:18:59,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 412 transitions, 1582 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:18:59,115 INFO L231 Difference]: Finished difference. Result has 311 places, 393 transitions, 1502 flow [2024-11-13 15:18:59,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1502, PETRI_PLACES=311, PETRI_TRANSITIONS=393} [2024-11-13 15:18:59,117 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -1 predicate places. [2024-11-13 15:18:59,117 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 393 transitions, 1502 flow [2024-11-13 15:18:59,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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 15:18:59,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:18:59,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:59,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:18:59,120 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:18:59,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:18:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1648238845, now seen corresponding path program 1 times [2024-11-13 15:18:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:18:59,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755939478] [2024-11-13 15:18:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:18:59,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:18:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:00,209 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 15:19:00,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:00,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755939478] [2024-11-13 15:19:00,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755939478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:00,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:00,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:19:00,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214335500] [2024-11-13 15:19:00,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:00,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:19:00,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:00,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:19:00,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:19:00,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 309 [2024-11-13 15:19:00,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 393 transitions, 1502 flow. Second operand has 6 states, 6 states have (on average 222.66666666666666) internal successors, (1336), 6 states have internal predecessors, (1336), 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 15:19:00,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:00,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 309 [2024-11-13 15:19:00,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:02,157 INFO L124 PetriNetUnfolderBase]: 1657/5726 cut-off events. [2024-11-13 15:19:02,157 INFO L125 PetriNetUnfolderBase]: For 3340/3400 co-relation queries the response was YES. [2024-11-13 15:19:02,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12823 conditions, 5726 events. 1657/5726 cut-off events. For 3340/3400 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45889 event pairs, 861 based on Foata normal form. 0/5397 useless extension candidates. Maximal degree in co-relation 12742. Up to 3155 conditions per place. [2024-11-13 15:19:02,202 INFO L140 encePairwiseOnDemand]: 286/309 looper letters, 209 selfloop transitions, 89 changer transitions 0/493 dead transitions. [2024-11-13 15:19:02,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 493 transitions, 2502 flow [2024-11-13 15:19:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:19:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:19:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1460 transitions. [2024-11-13 15:19:02,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7874865156418555 [2024-11-13 15:19:02,208 INFO L175 Difference]: Start difference. First operand has 311 places, 393 transitions, 1502 flow. Second operand 6 states and 1460 transitions. [2024-11-13 15:19:02,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 493 transitions, 2502 flow [2024-11-13 15:19:02,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 493 transitions, 2502 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:19:02,235 INFO L231 Difference]: Finished difference. Result has 321 places, 477 transitions, 2304 flow [2024-11-13 15:19:02,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2304, PETRI_PLACES=321, PETRI_TRANSITIONS=477} [2024-11-13 15:19:02,237 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 9 predicate places. [2024-11-13 15:19:02,237 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 477 transitions, 2304 flow [2024-11-13 15:19:02,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.66666666666666) internal successors, (1336), 6 states have internal predecessors, (1336), 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 15:19:02,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:02,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:02,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:19:02,238 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:02,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1475696196, now seen corresponding path program 1 times [2024-11-13 15:19:02,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:02,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737874614] [2024-11-13 15:19:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:02,544 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 15:19:02,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:02,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737874614] [2024-11-13 15:19:02,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737874614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:02,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:02,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:19:02,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286583479] [2024-11-13 15:19:02,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:02,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:19:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:19:02,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:19:02,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 309 [2024-11-13 15:19:02,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 477 transitions, 2304 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 15:19:02,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:02,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 309 [2024-11-13 15:19:02,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:03,045 INFO L124 PetriNetUnfolderBase]: 303/1986 cut-off events. [2024-11-13 15:19:03,045 INFO L125 PetriNetUnfolderBase]: For 1147/1215 co-relation queries the response was YES. [2024-11-13 15:19:03,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 1986 events. 303/1986 cut-off events. For 1147/1215 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13450 event pairs, 31 based on Foata normal form. 4/1914 useless extension candidates. Maximal degree in co-relation 4030. Up to 312 conditions per place. [2024-11-13 15:19:03,056 INFO L140 encePairwiseOnDemand]: 303/309 looper letters, 10 selfloop transitions, 6 changer transitions 0/417 dead transitions. [2024-11-13 15:19:03,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 417 transitions, 1772 flow [2024-11-13 15:19:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:19:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:19:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2024-11-13 15:19:03,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9870550161812298 [2024-11-13 15:19:03,060 INFO L175 Difference]: Start difference. First operand has 321 places, 477 transitions, 2304 flow. Second operand 3 states and 915 transitions. [2024-11-13 15:19:03,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 417 transitions, 1772 flow [2024-11-13 15:19:03,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 417 transitions, 1684 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-11-13 15:19:03,083 INFO L231 Difference]: Finished difference. Result has 324 places, 415 transitions, 1674 flow [2024-11-13 15:19:03,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1674, PETRI_PLACES=324, PETRI_TRANSITIONS=415} [2024-11-13 15:19:03,084 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 12 predicate places. [2024-11-13 15:19:03,085 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 415 transitions, 1674 flow [2024-11-13 15:19:03,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 15:19:03,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:03,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:03,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:19:03,086 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:03,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash 66721730, now seen corresponding path program 1 times [2024-11-13 15:19:03,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127202034] [2024-11-13 15:19:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:03,985 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 15:19:03,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127202034] [2024-11-13 15:19:03,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127202034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:03,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:03,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:19:03,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373874968] [2024-11-13 15:19:03,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:03,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:19:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:03,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:19:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:19:04,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 309 [2024-11-13 15:19:04,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 415 transitions, 1674 flow. Second operand has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 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 15:19:04,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:04,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 309 [2024-11-13 15:19:04,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:05,767 INFO L124 PetriNetUnfolderBase]: 695/3155 cut-off events. [2024-11-13 15:19:05,767 INFO L125 PetriNetUnfolderBase]: For 2986/3179 co-relation queries the response was YES. [2024-11-13 15:19:05,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7520 conditions, 3155 events. 695/3155 cut-off events. For 2986/3179 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 24033 event pairs, 52 based on Foata normal form. 20/3064 useless extension candidates. Maximal degree in co-relation 7431. Up to 749 conditions per place. [2024-11-13 15:19:05,780 INFO L140 encePairwiseOnDemand]: 290/309 looper letters, 192 selfloop transitions, 124 changer transitions 4/573 dead transitions. [2024-11-13 15:19:05,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 573 transitions, 3281 flow [2024-11-13 15:19:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:19:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:19:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1588 transitions. [2024-11-13 15:19:05,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8565264293419633 [2024-11-13 15:19:05,785 INFO L175 Difference]: Start difference. First operand has 324 places, 415 transitions, 1674 flow. Second operand 6 states and 1588 transitions. [2024-11-13 15:19:05,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 573 transitions, 3281 flow [2024-11-13 15:19:05,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 573 transitions, 3258 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:19:05,814 INFO L231 Difference]: Finished difference. Result has 332 places, 517 transitions, 3050 flow [2024-11-13 15:19:05,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=1666, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3050, PETRI_PLACES=332, PETRI_TRANSITIONS=517} [2024-11-13 15:19:05,817 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 20 predicate places. [2024-11-13 15:19:05,817 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 517 transitions, 3050 flow [2024-11-13 15:19:05,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 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 15:19:05,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:05,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:05,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:19:05,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:05,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash -744619893, now seen corresponding path program 1 times [2024-11-13 15:19:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:05,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143868179] [2024-11-13 15:19:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:06,788 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 15:19:06,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:06,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143868179] [2024-11-13 15:19:06,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143868179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:06,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:06,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:19:06,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084184253] [2024-11-13 15:19:06,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:06,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:19:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:06,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:19:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:19:07,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 309 [2024-11-13 15:19:07,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 517 transitions, 3050 flow. Second operand has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 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 15:19:07,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:07,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 309 [2024-11-13 15:19:07,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:08,346 INFO L124 PetriNetUnfolderBase]: 608/2947 cut-off events. [2024-11-13 15:19:08,346 INFO L125 PetriNetUnfolderBase]: For 5771/6023 co-relation queries the response was YES. [2024-11-13 15:19:08,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7931 conditions, 2947 events. 608/2947 cut-off events. For 5771/6023 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 22177 event pairs, 92 based on Foata normal form. 18/2909 useless extension candidates. Maximal degree in co-relation 7839. Up to 818 conditions per place. [2024-11-13 15:19:08,361 INFO L140 encePairwiseOnDemand]: 303/309 looper letters, 226 selfloop transitions, 17 changer transitions 0/532 dead transitions. [2024-11-13 15:19:08,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 532 transitions, 3590 flow [2024-11-13 15:19:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:19:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:19:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1540 transitions. [2024-11-13 15:19:08,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8306364617044228 [2024-11-13 15:19:08,366 INFO L175 Difference]: Start difference. First operand has 332 places, 517 transitions, 3050 flow. Second operand 6 states and 1540 transitions. [2024-11-13 15:19:08,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 532 transitions, 3590 flow [2024-11-13 15:19:08,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 532 transitions, 3572 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-13 15:19:08,397 INFO L231 Difference]: Finished difference. Result has 336 places, 516 transitions, 3064 flow [2024-11-13 15:19:08,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3064, PETRI_PLACES=336, PETRI_TRANSITIONS=516} [2024-11-13 15:19:08,398 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 24 predicate places. [2024-11-13 15:19:08,399 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 516 transitions, 3064 flow [2024-11-13 15:19:08,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 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 15:19:08,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:08,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:08,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:19:08,400 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:08,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 460287632, now seen corresponding path program 1 times [2024-11-13 15:19:08,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:08,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086830935] [2024-11-13 15:19:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:09,403 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 15:19:09,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:09,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086830935] [2024-11-13 15:19:09,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086830935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:09,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:19:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257758901] [2024-11-13 15:19:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:09,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:19:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:19:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:19:10,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 309 [2024-11-13 15:19:10,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 516 transitions, 3064 flow. Second operand has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 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 15:19:10,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:10,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 309 [2024-11-13 15:19:10,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:11,399 INFO L124 PetriNetUnfolderBase]: 1547/5192 cut-off events. [2024-11-13 15:19:11,399 INFO L125 PetriNetUnfolderBase]: For 7568/7653 co-relation queries the response was YES. [2024-11-13 15:19:11,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15177 conditions, 5192 events. 1547/5192 cut-off events. For 7568/7653 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 41363 event pairs, 582 based on Foata normal form. 1/5040 useless extension candidates. Maximal degree in co-relation 15084. Up to 2889 conditions per place. [2024-11-13 15:19:11,426 INFO L140 encePairwiseOnDemand]: 286/309 looper letters, 312 selfloop transitions, 103 changer transitions 8/622 dead transitions. [2024-11-13 15:19:11,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 622 transitions, 4520 flow [2024-11-13 15:19:11,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:19:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:19:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1460 transitions. [2024-11-13 15:19:11,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7874865156418555 [2024-11-13 15:19:11,430 INFO L175 Difference]: Start difference. First operand has 336 places, 516 transitions, 3064 flow. Second operand 6 states and 1460 transitions. [2024-11-13 15:19:11,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 622 transitions, 4520 flow [2024-11-13 15:19:11,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 622 transitions, 4486 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:19:11,481 INFO L231 Difference]: Finished difference. Result has 341 places, 602 transitions, 4048 flow [2024-11-13 15:19:11,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4048, PETRI_PLACES=341, PETRI_TRANSITIONS=602} [2024-11-13 15:19:11,482 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 29 predicate places. [2024-11-13 15:19:11,483 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 602 transitions, 4048 flow [2024-11-13 15:19:11,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 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 15:19:11,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:11,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:11,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:19:11,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:11,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1397274883, now seen corresponding path program 1 times [2024-11-13 15:19:11,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:11,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060586526] [2024-11-13 15:19:11,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:11,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:14,834 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 15:19:14,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:14,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060586526] [2024-11-13 15:19:14,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060586526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:14,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:14,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-13 15:19:14,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180236904] [2024-11-13 15:19:14,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:14,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 15:19:14,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:14,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 15:19:14,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:19:21,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 309 [2024-11-13 15:19:21,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 602 transitions, 4048 flow. Second operand has 24 states, 24 states have (on average 166.04166666666666) internal successors, (3985), 24 states have internal predecessors, (3985), 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 15:19:21,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:21,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 309 [2024-11-13 15:19:21,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:24,975 INFO L124 PetriNetUnfolderBase]: 1733/5605 cut-off events. [2024-11-13 15:19:24,975 INFO L125 PetriNetUnfolderBase]: For 11169/11246 co-relation queries the response was YES. [2024-11-13 15:19:24,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18574 conditions, 5605 events. 1733/5605 cut-off events. For 11169/11246 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 45093 event pairs, 507 based on Foata normal form. 14/5551 useless extension candidates. Maximal degree in co-relation 18461. Up to 2210 conditions per place. [2024-11-13 15:19:25,006 INFO L140 encePairwiseOnDemand]: 271/309 looper letters, 531 selfloop transitions, 110 changer transitions 30/816 dead transitions. [2024-11-13 15:19:25,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 816 transitions, 6980 flow [2024-11-13 15:19:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-13 15:19:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-13 15:19:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5941 transitions. [2024-11-13 15:19:25,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.549329634766528 [2024-11-13 15:19:25,018 INFO L175 Difference]: Start difference. First operand has 341 places, 602 transitions, 4048 flow. Second operand 35 states and 5941 transitions. [2024-11-13 15:19:25,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 816 transitions, 6980 flow [2024-11-13 15:19:25,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 816 transitions, 6776 flow, removed 102 selfloop flow, removed 0 redundant places. [2024-11-13 15:19:25,105 INFO L231 Difference]: Finished difference. Result has 385 places, 634 transitions, 4486 flow [2024-11-13 15:19:25,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=3900, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=4486, PETRI_PLACES=385, PETRI_TRANSITIONS=634} [2024-11-13 15:19:25,107 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 73 predicate places. [2024-11-13 15:19:25,107 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 634 transitions, 4486 flow [2024-11-13 15:19:25,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 166.04166666666666) internal successors, (3985), 24 states have internal predecessors, (3985), 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 15:19:25,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:25,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:25,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:19:25,109 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:25,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:25,110 INFO L85 PathProgramCache]: Analyzing trace with hash -906554351, now seen corresponding path program 1 times [2024-11-13 15:19:25,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:25,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761508547] [2024-11-13 15:19:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:25,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:28,280 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 15:19:28,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:28,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761508547] [2024-11-13 15:19:28,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761508547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:28,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:28,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:19:28,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027844266] [2024-11-13 15:19:28,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:28,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:19:28,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:19:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:19:36,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:19:36,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 634 transitions, 4486 flow. Second operand has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:19:36,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:36,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:19:36,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:39,593 INFO L124 PetriNetUnfolderBase]: 1401/5250 cut-off events. [2024-11-13 15:19:39,593 INFO L125 PetriNetUnfolderBase]: For 13077/13228 co-relation queries the response was YES. [2024-11-13 15:19:39,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17719 conditions, 5250 events. 1401/5250 cut-off events. For 13077/13228 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 44317 event pairs, 197 based on Foata normal form. 27/5209 useless extension candidates. Maximal degree in co-relation 17589. Up to 1530 conditions per place. [2024-11-13 15:19:39,638 INFO L140 encePairwiseOnDemand]: 269/309 looper letters, 389 selfloop transitions, 125 changer transitions 7/777 dead transitions. [2024-11-13 15:19:39,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 777 transitions, 6751 flow [2024-11-13 15:19:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 15:19:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-13 15:19:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5241 transitions. [2024-11-13 15:19:39,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6281912980942107 [2024-11-13 15:19:39,645 INFO L175 Difference]: Start difference. First operand has 385 places, 634 transitions, 4486 flow. Second operand 27 states and 5241 transitions. [2024-11-13 15:19:39,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 777 transitions, 6751 flow [2024-11-13 15:19:39,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 777 transitions, 6623 flow, removed 48 selfloop flow, removed 14 redundant places. [2024-11-13 15:19:39,722 INFO L231 Difference]: Finished difference. Result has 405 places, 693 transitions, 5604 flow [2024-11-13 15:19:39,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=4394, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5604, PETRI_PLACES=405, PETRI_TRANSITIONS=693} [2024-11-13 15:19:39,723 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 93 predicate places. [2024-11-13 15:19:39,723 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 693 transitions, 5604 flow [2024-11-13 15:19:39,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:19:39,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:39,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:39,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:19:39,725 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:39,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1490078925, now seen corresponding path program 2 times [2024-11-13 15:19:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:39,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402651577] [2024-11-13 15:19:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:39,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:42,181 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 15:19:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:42,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402651577] [2024-11-13 15:19:42,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402651577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:42,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:42,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-13 15:19:42,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660291239] [2024-11-13 15:19:42,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:42,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 15:19:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:42,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 15:19:42,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:19:48,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:19:48,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 693 transitions, 5604 flow. Second operand has 24 states, 24 states have (on average 189.33333333333334) internal successors, (4544), 24 states have internal predecessors, (4544), 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 15:19:48,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:19:48,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:19:48,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:19:51,991 INFO L124 PetriNetUnfolderBase]: 1500/5482 cut-off events. [2024-11-13 15:19:51,991 INFO L125 PetriNetUnfolderBase]: For 17573/17754 co-relation queries the response was YES. [2024-11-13 15:19:52,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19657 conditions, 5482 events. 1500/5482 cut-off events. For 17573/17754 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 45956 event pairs, 223 based on Foata normal form. 62/5480 useless extension candidates. Maximal degree in co-relation 19517. Up to 902 conditions per place. [2024-11-13 15:19:52,026 INFO L140 encePairwiseOnDemand]: 270/309 looper letters, 482 selfloop transitions, 174 changer transitions 12/920 dead transitions. [2024-11-13 15:19:52,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 920 transitions, 8822 flow [2024-11-13 15:19:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-13 15:19:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2024-11-13 15:19:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7487 transitions. [2024-11-13 15:19:52,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.621276242635466 [2024-11-13 15:19:52,036 INFO L175 Difference]: Start difference. First operand has 405 places, 693 transitions, 5604 flow. Second operand 39 states and 7487 transitions. [2024-11-13 15:19:52,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 920 transitions, 8822 flow [2024-11-13 15:19:52,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 920 transitions, 8739 flow, removed 20 selfloop flow, removed 17 redundant places. [2024-11-13 15:19:52,166 INFO L231 Difference]: Finished difference. Result has 439 places, 759 transitions, 6802 flow [2024-11-13 15:19:52,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=5547, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=6802, PETRI_PLACES=439, PETRI_TRANSITIONS=759} [2024-11-13 15:19:52,168 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 127 predicate places. [2024-11-13 15:19:52,168 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 759 transitions, 6802 flow [2024-11-13 15:19:52,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 189.33333333333334) internal successors, (4544), 24 states have internal predecessors, (4544), 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 15:19:52,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:19:52,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:52,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:19:52,178 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:19:52,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1897857727, now seen corresponding path program 3 times [2024-11-13 15:19:52,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:19:52,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453115157] [2024-11-13 15:19:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:19:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:54,850 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 15:19:54,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:19:54,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453115157] [2024-11-13 15:19:54,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453115157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:54,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:54,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:19:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468511874] [2024-11-13 15:19:54,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:54,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:19:54,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:19:54,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:19:54,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:20:02,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:20:02,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 759 transitions, 6802 flow. Second operand has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:02,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:20:02,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:20:02,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:20:05,480 INFO L124 PetriNetUnfolderBase]: 1684/6187 cut-off events. [2024-11-13 15:20:05,480 INFO L125 PetriNetUnfolderBase]: For 26156/26474 co-relation queries the response was YES. [2024-11-13 15:20:05,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23722 conditions, 6187 events. 1684/6187 cut-off events. For 26156/26474 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 54608 event pairs, 224 based on Foata normal form. 95/6204 useless extension candidates. Maximal degree in co-relation 23568. Up to 1607 conditions per place. [2024-11-13 15:20:05,526 INFO L140 encePairwiseOnDemand]: 269/309 looper letters, 473 selfloop transitions, 175 changer transitions 7/911 dead transitions. [2024-11-13 15:20:05,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 911 transitions, 9749 flow [2024-11-13 15:20:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-13 15:20:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-13 15:20:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5623 transitions. [2024-11-13 15:20:05,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6274969311460774 [2024-11-13 15:20:05,530 INFO L175 Difference]: Start difference. First operand has 439 places, 759 transitions, 6802 flow. Second operand 29 states and 5623 transitions. [2024-11-13 15:20:05,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 911 transitions, 9749 flow [2024-11-13 15:20:05,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 911 transitions, 9576 flow, removed 32 selfloop flow, removed 23 redundant places. [2024-11-13 15:20:05,665 INFO L231 Difference]: Finished difference. Result has 449 places, 820 transitions, 8287 flow [2024-11-13 15:20:05,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=6651, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8287, PETRI_PLACES=449, PETRI_TRANSITIONS=820} [2024-11-13 15:20:05,666 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 137 predicate places. [2024-11-13 15:20:05,666 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 820 transitions, 8287 flow [2024-11-13 15:20:05,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:05,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:20:05,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:20:05,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:20:05,668 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:20:05,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:20:05,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1878920413, now seen corresponding path program 4 times [2024-11-13 15:20:05,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:20:05,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034655277] [2024-11-13 15:20:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:20:05,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:20:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:20:07,385 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 15:20:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:20:07,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034655277] [2024-11-13 15:20:07,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034655277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:20:07,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:20:07,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:20:07,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896497324] [2024-11-13 15:20:07,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:20:07,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:20:07,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:20:07,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:20:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:20:14,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:20:14,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 820 transitions, 8287 flow. Second operand has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:14,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:20:14,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:20:14,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:20:18,069 INFO L124 PetriNetUnfolderBase]: 1925/6941 cut-off events. [2024-11-13 15:20:18,069 INFO L125 PetriNetUnfolderBase]: For 38206/38586 co-relation queries the response was YES. [2024-11-13 15:20:18,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28129 conditions, 6941 events. 1925/6941 cut-off events. For 38206/38586 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 63280 event pairs, 250 based on Foata normal form. 86/6941 useless extension candidates. Maximal degree in co-relation 27969. Up to 1554 conditions per place. [2024-11-13 15:20:18,111 INFO L140 encePairwiseOnDemand]: 269/309 looper letters, 528 selfloop transitions, 223 changer transitions 7/1014 dead transitions. [2024-11-13 15:20:18,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1014 transitions, 12242 flow [2024-11-13 15:20:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 15:20:18,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-13 15:20:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 6014 transitions. [2024-11-13 15:20:18,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.627831715210356 [2024-11-13 15:20:18,118 INFO L175 Difference]: Start difference. First operand has 449 places, 820 transitions, 8287 flow. Second operand 31 states and 6014 transitions. [2024-11-13 15:20:18,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1014 transitions, 12242 flow [2024-11-13 15:20:18,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1014 transitions, 12143 flow, removed 11 selfloop flow, removed 21 redundant places. [2024-11-13 15:20:18,263 INFO L231 Difference]: Finished difference. Result has 468 places, 901 transitions, 10512 flow [2024-11-13 15:20:18,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=8198, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=10512, PETRI_PLACES=468, PETRI_TRANSITIONS=901} [2024-11-13 15:20:18,264 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 156 predicate places. [2024-11-13 15:20:18,264 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 901 transitions, 10512 flow [2024-11-13 15:20:18,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:18,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:20:18,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:20:18,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:20:18,266 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:20:18,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:20:18,266 INFO L85 PathProgramCache]: Analyzing trace with hash -154613209, now seen corresponding path program 5 times [2024-11-13 15:20:18,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:20:18,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129943827] [2024-11-13 15:20:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:20:18,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:20:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:20:20,136 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 15:20:20,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:20:20,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129943827] [2024-11-13 15:20:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129943827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:20:20,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:20:20,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:20:20,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558827851] [2024-11-13 15:20:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:20:20,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:20:20,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:20:20,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:20:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:20:27,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:20:27,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 901 transitions, 10512 flow. Second operand has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:27,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:20:27,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:20:27,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:20:31,445 INFO L124 PetriNetUnfolderBase]: 2127/7681 cut-off events. [2024-11-13 15:20:31,445 INFO L125 PetriNetUnfolderBase]: For 54548/54978 co-relation queries the response was YES. [2024-11-13 15:20:31,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32661 conditions, 7681 events. 2127/7681 cut-off events. For 54548/54978 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 72536 event pairs, 271 based on Foata normal form. 108/7696 useless extension candidates. Maximal degree in co-relation 32490. Up to 1886 conditions per place. [2024-11-13 15:20:31,518 INFO L140 encePairwiseOnDemand]: 269/309 looper letters, 539 selfloop transitions, 260 changer transitions 7/1062 dead transitions. [2024-11-13 15:20:31,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1062 transitions, 14302 flow [2024-11-13 15:20:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 15:20:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 15:20:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5819 transitions. [2024-11-13 15:20:31,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6277238403451996 [2024-11-13 15:20:31,526 INFO L175 Difference]: Start difference. First operand has 468 places, 901 transitions, 10512 flow. Second operand 30 states and 5819 transitions. [2024-11-13 15:20:31,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1062 transitions, 14302 flow [2024-11-13 15:20:31,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 1062 transitions, 14157 flow, removed 49 selfloop flow, removed 18 redundant places. [2024-11-13 15:20:31,785 INFO L231 Difference]: Finished difference. Result has 487 places, 960 transitions, 12678 flow [2024-11-13 15:20:31,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=10369, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=12678, PETRI_PLACES=487, PETRI_TRANSITIONS=960} [2024-11-13 15:20:31,786 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 175 predicate places. [2024-11-13 15:20:31,786 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 960 transitions, 12678 flow [2024-11-13 15:20:31,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.47826086956522) internal successors, (4404), 23 states have internal predecessors, (4404), 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 15:20:31,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:20:31,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:20:31,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:20:31,787 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:20:31,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:20:31,788 INFO L85 PathProgramCache]: Analyzing trace with hash 491311049, now seen corresponding path program 1 times [2024-11-13 15:20:31,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:20:31,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098194325] [2024-11-13 15:20:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:20:31,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:20:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:20:33,573 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 15:20:33,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:20:33,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098194325] [2024-11-13 15:20:33,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098194325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:20:33,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:20:33,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:20:33,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146552977] [2024-11-13 15:20:33,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:20:33,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:20:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:20:33,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:20:33,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:20:40,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:20:40,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 960 transitions, 12678 flow. Second operand has 23 states, 23 states have (on average 191.69565217391303) internal successors, (4409), 23 states have internal predecessors, (4409), 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 15:20:40,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:20:40,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:20:40,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:20:44,654 INFO L124 PetriNetUnfolderBase]: 2159/7720 cut-off events. [2024-11-13 15:20:44,654 INFO L125 PetriNetUnfolderBase]: For 68640/69064 co-relation queries the response was YES. [2024-11-13 15:20:44,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34384 conditions, 7720 events. 2159/7720 cut-off events. For 68640/69064 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 72835 event pairs, 286 based on Foata normal form. 91/7715 useless extension candidates. Maximal degree in co-relation 34204. Up to 1164 conditions per place. [2024-11-13 15:20:44,748 INFO L140 encePairwiseOnDemand]: 272/309 looper letters, 547 selfloop transitions, 236 changer transitions 8/1047 dead transitions. [2024-11-13 15:20:44,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 1047 transitions, 15083 flow [2024-11-13 15:20:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 15:20:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-13 15:20:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6577 transitions. [2024-11-13 15:20:44,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260232248239102 [2024-11-13 15:20:44,757 INFO L175 Difference]: Start difference. First operand has 487 places, 960 transitions, 12678 flow. Second operand 34 states and 6577 transitions. [2024-11-13 15:20:44,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 1047 transitions, 15083 flow [2024-11-13 15:20:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1047 transitions, 14949 flow, removed 40 selfloop flow, removed 19 redundant places. [2024-11-13 15:20:45,074 INFO L231 Difference]: Finished difference. Result has 504 places, 969 transitions, 13452 flow [2024-11-13 15:20:45,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=12544, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=13452, PETRI_PLACES=504, PETRI_TRANSITIONS=969} [2024-11-13 15:20:45,075 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 192 predicate places. [2024-11-13 15:20:45,075 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 969 transitions, 13452 flow [2024-11-13 15:20:45,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.69565217391303) internal successors, (4409), 23 states have internal predecessors, (4409), 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 15:20:45,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:20:45,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:20:45,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:20:45,077 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:20:45,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:20:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1021742389, now seen corresponding path program 2 times [2024-11-13 15:20:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:20:45,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175705601] [2024-11-13 15:20:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:20:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:20:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:20:47,166 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 15:20:47,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:20:47,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175705601] [2024-11-13 15:20:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175705601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:20:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:20:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 15:20:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367761876] [2024-11-13 15:20:47,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:20:47,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:20:47,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:20:47,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:20:47,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:20:54,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 309 [2024-11-13 15:20:54,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 969 transitions, 13452 flow. Second operand has 23 states, 23 states have (on average 191.69565217391303) internal successors, (4409), 23 states have internal predecessors, (4409), 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 15:20:54,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:20:54,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 309 [2024-11-13 15:20:55,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:20:59,317 INFO L124 PetriNetUnfolderBase]: 2195/7800 cut-off events. [2024-11-13 15:20:59,318 INFO L125 PetriNetUnfolderBase]: For 82427/82846 co-relation queries the response was YES. [2024-11-13 15:20:59,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35967 conditions, 7800 events. 2195/7800 cut-off events. For 82427/82846 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 73631 event pairs, 293 based on Foata normal form. 89/7793 useless extension candidates. Maximal degree in co-relation 35783. Up to 1207 conditions per place. [2024-11-13 15:20:59,380 INFO L140 encePairwiseOnDemand]: 271/309 looper letters, 560 selfloop transitions, 242 changer transitions 8/1066 dead transitions. [2024-11-13 15:20:59,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1066 transitions, 16003 flow [2024-11-13 15:20:59,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-13 15:20:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-13 15:20:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6771 transitions. [2024-11-13 15:20:59,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260748959778086 [2024-11-13 15:20:59,388 INFO L175 Difference]: Start difference. First operand has 504 places, 969 transitions, 13452 flow. Second operand 35 states and 6771 transitions. [2024-11-13 15:20:59,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1066 transitions, 16003 flow [2024-11-13 15:20:59,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1066 transitions, 15616 flow, removed 15 selfloop flow, removed 30 redundant places. [2024-11-13 15:20:59,829 INFO L231 Difference]: Finished difference. Result has 512 places, 981 transitions, 14069 flow [2024-11-13 15:20:59,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=13071, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=727, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=14069, PETRI_PLACES=512, PETRI_TRANSITIONS=981} [2024-11-13 15:20:59,831 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 200 predicate places. [2024-11-13 15:20:59,831 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 981 transitions, 14069 flow [2024-11-13 15:20:59,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 191.69565217391303) internal successors, (4409), 23 states have internal predecessors, (4409), 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 15:20:59,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:20:59,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:20:59,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:20:59,833 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:20:59,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:20:59,833 INFO L85 PathProgramCache]: Analyzing trace with hash -826185539, now seen corresponding path program 3 times [2024-11-13 15:20:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:20:59,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909587210] [2024-11-13 15:20:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:20:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:20:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:02,174 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 15:21:02,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:02,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909587210] [2024-11-13 15:21:02,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909587210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:02,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:02,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-13 15:21:02,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69451587] [2024-11-13 15:21:02,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:02,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 15:21:02,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:02,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 15:21:02,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:21:09,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:21:09,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 981 transitions, 14069 flow. Second operand has 24 states, 24 states have (on average 189.54166666666666) internal successors, (4549), 24 states have internal predecessors, (4549), 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 15:21:09,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:09,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:21:09,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:15,350 INFO L124 PetriNetUnfolderBase]: 2229/7766 cut-off events. [2024-11-13 15:21:15,350 INFO L125 PetriNetUnfolderBase]: For 90307/90706 co-relation queries the response was YES. [2024-11-13 15:21:15,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36684 conditions, 7766 events. 2229/7766 cut-off events. For 90307/90706 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 72875 event pairs, 232 based on Foata normal form. 128/7801 useless extension candidates. Maximal degree in co-relation 36495. Up to 1169 conditions per place. [2024-11-13 15:21:15,405 INFO L140 encePairwiseOnDemand]: 267/309 looper letters, 590 selfloop transitions, 329 changer transitions 18/1189 dead transitions. [2024-11-13 15:21:15,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 1189 transitions, 17487 flow [2024-11-13 15:21:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-13 15:21:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2024-11-13 15:21:15,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9230 transitions. [2024-11-13 15:21:15,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6223031283710896 [2024-11-13 15:21:15,418 INFO L175 Difference]: Start difference. First operand has 512 places, 981 transitions, 14069 flow. Second operand 48 states and 9230 transitions. [2024-11-13 15:21:15,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 1189 transitions, 17487 flow [2024-11-13 15:21:15,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 1189 transitions, 17001 flow, removed 32 selfloop flow, removed 32 redundant places. [2024-11-13 15:21:15,847 INFO L231 Difference]: Finished difference. Result has 536 places, 1013 transitions, 14923 flow [2024-11-13 15:21:15,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=13603, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=981, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=14923, PETRI_PLACES=536, PETRI_TRANSITIONS=1013} [2024-11-13 15:21:15,848 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 224 predicate places. [2024-11-13 15:21:15,848 INFO L471 AbstractCegarLoop]: Abstraction has has 536 places, 1013 transitions, 14923 flow [2024-11-13 15:21:15,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 189.54166666666666) internal successors, (4549), 24 states have internal predecessors, (4549), 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 15:21:15,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:15,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:15,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:21:15,850 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:21:15,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1217938751, now seen corresponding path program 1 times [2024-11-13 15:21:15,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:15,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665341600] [2024-11-13 15:21:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:15,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:18,033 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 15:21:18,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:18,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665341600] [2024-11-13 15:21:18,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665341600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:18,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:18,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-13 15:21:18,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031013139] [2024-11-13 15:21:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:18,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:21:18,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:21:18,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:21:26,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:21:26,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 1013 transitions, 14923 flow. Second operand has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:21:26,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:26,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:21:26,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:30,745 INFO L124 PetriNetUnfolderBase]: 2203/8237 cut-off events. [2024-11-13 15:21:30,745 INFO L125 PetriNetUnfolderBase]: For 95117/95531 co-relation queries the response was YES. [2024-11-13 15:21:30,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37891 conditions, 8237 events. 2203/8237 cut-off events. For 95117/95531 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 78864 event pairs, 226 based on Foata normal form. 65/8159 useless extension candidates. Maximal degree in co-relation 37693. Up to 1321 conditions per place. [2024-11-13 15:21:30,860 INFO L140 encePairwiseOnDemand]: 272/309 looper letters, 547 selfloop transitions, 188 changer transitions 35/1200 dead transitions. [2024-11-13 15:21:30,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 1200 transitions, 18450 flow [2024-11-13 15:21:30,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 15:21:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-13 15:21:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 7646 transitions. [2024-11-13 15:21:30,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6186084142394822 [2024-11-13 15:21:30,865 INFO L175 Difference]: Start difference. First operand has 536 places, 1013 transitions, 14923 flow. Second operand 40 states and 7646 transitions. [2024-11-13 15:21:30,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 1200 transitions, 18450 flow [2024-11-13 15:21:31,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 1200 transitions, 17811 flow, removed 87 selfloop flow, removed 45 redundant places. [2024-11-13 15:21:31,337 INFO L231 Difference]: Finished difference. Result has 542 places, 1055 transitions, 15065 flow [2024-11-13 15:21:31,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=14306, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1013, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=844, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=15065, PETRI_PLACES=542, PETRI_TRANSITIONS=1055} [2024-11-13 15:21:31,338 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 230 predicate places. [2024-11-13 15:21:31,338 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 1055 transitions, 15065 flow [2024-11-13 15:21:31,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:21:31,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:31,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:31,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:21:31,339 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:21:31,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash 237283395, now seen corresponding path program 2 times [2024-11-13 15:21:31,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:31,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661851690] [2024-11-13 15:21:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:31,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:33,695 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 15:21:33,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661851690] [2024-11-13 15:21:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661851690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:33,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:33,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-13 15:21:33,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303501240] [2024-11-13 15:21:33,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:33,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:21:33,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:33,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:21:33,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:21:43,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:21:43,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 1055 transitions, 15065 flow. Second operand has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:21:43,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:43,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:21:43,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:48,710 INFO L124 PetriNetUnfolderBase]: 2714/9968 cut-off events. [2024-11-13 15:21:48,710 INFO L125 PetriNetUnfolderBase]: For 117396/117942 co-relation queries the response was YES. [2024-11-13 15:21:48,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46574 conditions, 9968 events. 2714/9968 cut-off events. For 117396/117942 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 99003 event pairs, 265 based on Foata normal form. 86/9871 useless extension candidates. Maximal degree in co-relation 46380. Up to 1686 conditions per place. [2024-11-13 15:21:49,088 INFO L140 encePairwiseOnDemand]: 265/309 looper letters, 585 selfloop transitions, 224 changer transitions 15/1254 dead transitions. [2024-11-13 15:21:49,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 1254 transitions, 19823 flow [2024-11-13 15:21:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-13 15:21:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2024-11-13 15:21:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7803 transitions. [2024-11-13 15:21:49,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6159128581577078 [2024-11-13 15:21:49,100 INFO L175 Difference]: Start difference. First operand has 542 places, 1055 transitions, 15065 flow. Second operand 41 states and 7803 transitions. [2024-11-13 15:21:49,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 1254 transitions, 19823 flow [2024-11-13 15:21:49,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 1254 transitions, 19569 flow, removed 8 selfloop flow, removed 24 redundant places. [2024-11-13 15:21:49,752 INFO L231 Difference]: Finished difference. Result has 562 places, 1124 transitions, 16953 flow [2024-11-13 15:21:49,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=14812, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=841, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=16953, PETRI_PLACES=562, PETRI_TRANSITIONS=1124} [2024-11-13 15:21:49,754 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 250 predicate places. [2024-11-13 15:21:49,754 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 1124 transitions, 16953 flow [2024-11-13 15:21:49,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:21:49,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:49,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:49,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 15:21:49,756 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:21:49,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:49,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1992383765, now seen corresponding path program 1 times [2024-11-13 15:21:49,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:49,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444578867] [2024-11-13 15:21:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:52,261 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 15:21:52,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:52,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444578867] [2024-11-13 15:21:52,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444578867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-13 15:21:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052233288] [2024-11-13 15:21:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:52,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:21:52,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:21:52,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:21:57,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 309 [2024-11-13 15:21:57,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 1124 transitions, 16953 flow. Second operand has 25 states, 25 states have (on average 166.04) internal successors, (4151), 25 states have internal predecessors, (4151), 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 15:21:57,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:57,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 309 [2024-11-13 15:21:57,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:06,293 INFO L124 PetriNetUnfolderBase]: 4474/13720 cut-off events. [2024-11-13 15:22:06,293 INFO L125 PetriNetUnfolderBase]: For 134454/134833 co-relation queries the response was YES. [2024-11-13 15:22:06,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64707 conditions, 13720 events. 4474/13720 cut-off events. For 134454/134833 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 134242 event pairs, 913 based on Foata normal form. 71/13653 useless extension candidates. Maximal degree in co-relation 64509. Up to 1988 conditions per place. [2024-11-13 15:22:06,667 INFO L140 encePairwiseOnDemand]: 262/309 looper letters, 827 selfloop transitions, 246 changer transitions 51/1350 dead transitions. [2024-11-13 15:22:06,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 1350 transitions, 21171 flow [2024-11-13 15:22:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 15:22:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-13 15:22:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5363 transitions. [2024-11-13 15:22:06,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5598705501618123 [2024-11-13 15:22:06,671 INFO L175 Difference]: Start difference. First operand has 562 places, 1124 transitions, 16953 flow. Second operand 31 states and 5363 transitions. [2024-11-13 15:22:06,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 1350 transitions, 21171 flow [2024-11-13 15:22:07,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1350 transitions, 20880 flow, removed 31 selfloop flow, removed 23 redundant places. [2024-11-13 15:22:07,332 INFO L231 Difference]: Finished difference. Result has 574 places, 1134 transitions, 17529 flow [2024-11-13 15:22:07,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=16680, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=883, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=17529, PETRI_PLACES=574, PETRI_TRANSITIONS=1134} [2024-11-13 15:22:07,334 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 262 predicate places. [2024-11-13 15:22:07,334 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 1134 transitions, 17529 flow [2024-11-13 15:22:07,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 166.04) internal successors, (4151), 25 states have internal predecessors, (4151), 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 15:22:07,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:07,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:07,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:22:07,335 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:22:07,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash 321471145, now seen corresponding path program 3 times [2024-11-13 15:22:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604368820] [2024-11-13 15:22:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:07,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:10,295 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 15:22:10,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:10,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604368820] [2024-11-13 15:22:10,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604368820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:10,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:10,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-13 15:22:10,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603334156] [2024-11-13 15:22:10,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:10,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:22:10,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:22:10,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:22:17,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:22:17,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 1134 transitions, 17529 flow. Second operand has 25 states, 25 states have (on average 189.6) internal successors, (4740), 25 states have internal predecessors, (4740), 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 15:22:17,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:17,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:22:17,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:24,487 INFO L124 PetriNetUnfolderBase]: 3235/11772 cut-off events. [2024-11-13 15:22:24,487 INFO L125 PetriNetUnfolderBase]: For 163885/164681 co-relation queries the response was YES. [2024-11-13 15:22:24,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60028 conditions, 11772 events. 3235/11772 cut-off events. For 163885/164681 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 120774 event pairs, 335 based on Foata normal form. 159/11720 useless extension candidates. Maximal degree in co-relation 59824. Up to 2066 conditions per place. [2024-11-13 15:22:24,643 INFO L140 encePairwiseOnDemand]: 265/309 looper letters, 647 selfloop transitions, 237 changer transitions 18/1337 dead transitions. [2024-11-13 15:22:24,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1337 transitions, 22918 flow [2024-11-13 15:22:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-13 15:22:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-13 15:22:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 8181 transitions. [2024-11-13 15:22:24,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6157146082637164 [2024-11-13 15:22:24,652 INFO L175 Difference]: Start difference. First operand has 574 places, 1134 transitions, 17529 flow. Second operand 43 states and 8181 transitions. [2024-11-13 15:22:24,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1337 transitions, 22918 flow [2024-11-13 15:22:25,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 1337 transitions, 22662 flow, removed 0 selfloop flow, removed 25 redundant places. [2024-11-13 15:22:25,645 INFO L231 Difference]: Finished difference. Result has 596 places, 1198 transitions, 19713 flow [2024-11-13 15:22:25,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=17291, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=901, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=19713, PETRI_PLACES=596, PETRI_TRANSITIONS=1198} [2024-11-13 15:22:25,647 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 284 predicate places. [2024-11-13 15:22:25,647 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 1198 transitions, 19713 flow [2024-11-13 15:22:25,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 189.6) internal successors, (4740), 25 states have internal predecessors, (4740), 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 15:22:25,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:25,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:25,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 15:22:25,649 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:22:25,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:25,649 INFO L85 PathProgramCache]: Analyzing trace with hash 203015261, now seen corresponding path program 4 times [2024-11-13 15:22:25,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:25,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953706856] [2024-11-13 15:22:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:25,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:28,178 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 15:22:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:28,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953706856] [2024-11-13 15:22:28,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953706856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:28,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:28,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-13 15:22:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442997445] [2024-11-13 15:22:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:28,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 15:22:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:28,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 15:22:28,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:22:39,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:22:39,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1198 transitions, 19713 flow. Second operand has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:22:39,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:39,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:22:39,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:46,784 INFO L124 PetriNetUnfolderBase]: 3773/13566 cut-off events. [2024-11-13 15:22:46,785 INFO L125 PetriNetUnfolderBase]: For 211535/212443 co-relation queries the response was YES. [2024-11-13 15:22:46,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71020 conditions, 13566 events. 3773/13566 cut-off events. For 211535/212443 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 143433 event pairs, 376 based on Foata normal form. 140/13458 useless extension candidates. Maximal degree in co-relation 70811. Up to 2460 conditions per place. [2024-11-13 15:22:46,953 INFO L140 encePairwiseOnDemand]: 267/309 looper letters, 724 selfloop transitions, 263 changer transitions 18/1440 dead transitions. [2024-11-13 15:22:46,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1440 transitions, 26373 flow [2024-11-13 15:22:46,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-13 15:22:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2024-11-13 15:22:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7827 transitions. [2024-11-13 15:22:46,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6178072460336254 [2024-11-13 15:22:46,959 INFO L175 Difference]: Start difference. First operand has 596 places, 1198 transitions, 19713 flow. Second operand 41 states and 7827 transitions. [2024-11-13 15:22:46,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1440 transitions, 26373 flow [2024-11-13 15:22:47,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 601 places, 1440 transitions, 26029 flow, removed 9 selfloop flow, removed 35 redundant places. [2024-11-13 15:22:47,725 INFO L231 Difference]: Finished difference. Result has 610 places, 1280 transitions, 22318 flow [2024-11-13 15:22:47,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=19379, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=22318, PETRI_PLACES=610, PETRI_TRANSITIONS=1280} [2024-11-13 15:22:47,726 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 298 predicate places. [2024-11-13 15:22:47,726 INFO L471 AbstractCegarLoop]: Abstraction has has 610 places, 1280 transitions, 22318 flow [2024-11-13 15:22:47,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 189.56) internal successors, (4739), 25 states have internal predecessors, (4739), 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 15:22:47,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:47,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:47,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 15:22:47,727 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:22:47,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:47,728 INFO L85 PathProgramCache]: Analyzing trace with hash 440623939, now seen corresponding path program 5 times [2024-11-13 15:22:47,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:47,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53435493] [2024-11-13 15:22:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:47,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:50,496 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 15:22:50,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:50,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53435493] [2024-11-13 15:22:50,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53435493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:50,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:50,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-11-13 15:22:50,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235771281] [2024-11-13 15:22:50,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:50,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 15:22:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:50,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 15:22:50,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2024-11-13 15:23:01,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 309 [2024-11-13 15:23:02,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 1280 transitions, 22318 flow. Second operand has 28 states, 28 states have (on average 189.10714285714286) internal successors, (5295), 28 states have internal predecessors, (5295), 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 15:23:02,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:02,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 309 [2024-11-13 15:23:02,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:23:11,101 INFO L124 PetriNetUnfolderBase]: 4273/15299 cut-off events. [2024-11-13 15:23:11,101 INFO L125 PetriNetUnfolderBase]: For 263212/264254 co-relation queries the response was YES. [2024-11-13 15:23:11,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82473 conditions, 15299 events. 4273/15299 cut-off events. For 263212/264254 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 166012 event pairs, 430 based on Foata normal form. 161/15176 useless extension candidates. Maximal degree in co-relation 82254. Up to 2831 conditions per place. [2024-11-13 15:23:11,328 INFO L140 encePairwiseOnDemand]: 262/309 looper letters, 721 selfloop transitions, 315 changer transitions 19/1490 dead transitions. [2024-11-13 15:23:11,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 1490 transitions, 28714 flow [2024-11-13 15:23:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-13 15:23:11,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-13 15:23:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 8374 transitions. [2024-11-13 15:23:11,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6159164460135333 [2024-11-13 15:23:11,336 INFO L175 Difference]: Start difference. First operand has 610 places, 1280 transitions, 22318 flow. Second operand 44 states and 8374 transitions. [2024-11-13 15:23:11,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 1490 transitions, 28714 flow [2024-11-13 15:23:12,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 1490 transitions, 28315 flow, removed 55 selfloop flow, removed 28 redundant places. [2024-11-13 15:23:12,457 INFO L231 Difference]: Finished difference. Result has 632 places, 1341 transitions, 24858 flow [2024-11-13 15:23:12,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=21939, PETRI_DIFFERENCE_MINUEND_PLACES=582, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=24858, PETRI_PLACES=632, PETRI_TRANSITIONS=1341} [2024-11-13 15:23:12,458 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 320 predicate places. [2024-11-13 15:23:12,458 INFO L471 AbstractCegarLoop]: Abstraction has has 632 places, 1341 transitions, 24858 flow [2024-11-13 15:23:12,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 189.10714285714286) internal successors, (5295), 28 states have internal predecessors, (5295), 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 15:23:12,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:23:12,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:12,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 15:23:12,459 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-13 15:23:12,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1486462949, now seen corresponding path program 1 times [2024-11-13 15:23:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:12,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835551834] [2024-11-13 15:23:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:16,753 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 15:23:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:23:16,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835551834] [2024-11-13 15:23:16,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835551834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:23:16,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:23:16,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2024-11-13 15:23:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936589601] [2024-11-13 15:23:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:23:16,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-13 15:23:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:23:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-13 15:23:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2024-11-13 15:23:24,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 309 [2024-11-13 15:23:24,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 1341 transitions, 24858 flow. Second operand has 30 states, 30 states have (on average 163.33333333333334) internal successors, (4900), 30 states have internal predecessors, (4900), 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 15:23:24,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:23:24,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 309 [2024-11-13 15:23:24,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand