./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.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_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/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_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/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_2964b0bd-2633-40ce-afc3-feb80ffa1350/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 8ffb6ed4cf93a465c15dff37fbdc82f2f1bfe68c16d8d908373acd9cd0f46e43 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:23:56,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:23:56,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:23:56,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:23:56,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:23:56,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:23:56,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:23:56,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:23:56,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:23:56,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:23:56,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:23:56,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:23:56,692 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:23:56,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:23:56,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:23:56,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:23:56,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:23:56,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:23:56,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:23:56,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:23:56,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:23:56,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:23:56,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:23:56,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:23:56,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:23:56,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:23:56,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:23:56,696 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_2964b0bd-2633-40ce-afc3-feb80ffa1350/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 -> 8ffb6ed4cf93a465c15dff37fbdc82f2f1bfe68c16d8d908373acd9cd0f46e43 [2024-11-13 15:23:57,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:23:57,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:23:57,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:23:57,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:23:57,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:23:57,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i Unable to find full path for "g++" [2024-11-13 15:23:58,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:23:59,466 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:23:59,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i [2024-11-13 15:23:59,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/data/23e25e258/5ad01e6b3ff7437d8d73f3d0fa23e61a/FLAGd79699f73 [2024-11-13 15:23:59,551 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/data/23e25e258/5ad01e6b3ff7437d8d73f3d0fa23e61a [2024-11-13 15:23:59,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:23:59,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:23:59,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:23:59,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:23:59,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:23:59,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:59" (1/1) ... [2024-11-13 15:23:59,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f584f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:59, skipping insertion in model container [2024-11-13 15:23:59,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:59" (1/1) ... [2024-11-13 15:23:59,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:24:00,303 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,304 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,305 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,306 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:24:00,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:24:00,433 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,434 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,435 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,436 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 15:24:00,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:24:00,534 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:24:00,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00 WrapperNode [2024-11-13 15:24:00,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:24:00,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:24:00,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:24:00,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:24:00,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,662 INFO L138 Inliner]: procedures = 274, calls = 132, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 361 [2024-11-13 15:24:00,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:24:00,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:24:00,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:24:00,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:24:00,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:24:00,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:24:00,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:24:00,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:24:00,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (1/1) ... [2024-11-13 15:24:00,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:24:00,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:00,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:24:00,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:24:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 15:24:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 15:24:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure g [2024-11-13 15:24:00,837 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:24:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 15:24:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:24:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:24:00,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:24:00,839 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 15:24:01,014 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:24:01,016 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:24:02,015 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:24:02,016 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:24:02,046 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:24:02,046 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 15:24:02,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:24:02 BoogieIcfgContainer [2024-11-13 15:24:02,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:24:02,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:24:02,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:24:02,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:24:02,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:23:59" (1/3) ... [2024-11-13 15:24:02,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff4b806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:24:02, skipping insertion in model container [2024-11-13 15:24:02,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:24:00" (2/3) ... [2024-11-13 15:24:02,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff4b806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:24:02, skipping insertion in model container [2024-11-13 15:24:02,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:24:02" (3/3) ... [2024-11-13 15:24:02,056 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_20-arrayloop2_rc.i [2024-11-13 15:24:02,074 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:24:02,076 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_20-arrayloop2_rc.i that has 3 procedures, 387 locations, 1 initial locations, 6 loop locations, and 18 error locations. [2024-11-13 15:24:02,076 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:24:02,255 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:24:02,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 400 transitions, 808 flow [2024-11-13 15:24:02,654 INFO L124 PetriNetUnfolderBase]: 14/398 cut-off events. [2024-11-13 15:24:02,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:02,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 398 events. 14/398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 588 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 323. Up to 2 conditions per place. [2024-11-13 15:24:02,667 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 400 transitions, 808 flow [2024-11-13 15:24:02,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 391 places, 398 transitions, 802 flow [2024-11-13 15:24:02,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:24:02,711 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;@22599f57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:24:02,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-13 15:24:02,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:24:02,761 INFO L124 PetriNetUnfolderBase]: 1/134 cut-off events. [2024-11-13 15:24:02,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:02,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:02,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:24:02,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:02,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1594134942, now seen corresponding path program 1 times [2024-11-13 15:24:02,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:02,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443333808] [2024-11-13 15:24:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:02,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:04,450 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 15:24:04,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443333808] [2024-11-13 15:24:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443333808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:04,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:04,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:04,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808220843] [2024-11-13 15:24:04,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:04,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:04,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:04,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:05,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 400 [2024-11-13 15:24:05,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 398 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 15:24:05,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:05,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 400 [2024-11-13 15:24:05,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:06,116 INFO L124 PetriNetUnfolderBase]: 449/1871 cut-off events. [2024-11-13 15:24:06,116 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-13 15:24:06,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1871 events. 449/1871 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11552 event pairs, 342 based on Foata normal form. 152/1816 useless extension candidates. Maximal degree in co-relation 2477. Up to 846 conditions per place. [2024-11-13 15:24:06,138 INFO L140 encePairwiseOnDemand]: 380/400 looper letters, 72 selfloop transitions, 10 changer transitions 0/388 dead transitions. [2024-11-13 15:24:06,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 388 transitions, 946 flow [2024-11-13 15:24:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:06,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1940 transitions. [2024-11-13 15:24:06,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083333333333333 [2024-11-13 15:24:06,174 INFO L175 Difference]: Start difference. First operand has 391 places, 398 transitions, 802 flow. Second operand 6 states and 1940 transitions. [2024-11-13 15:24:06,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 388 transitions, 946 flow [2024-11-13 15:24:06,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 388 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:24:06,203 INFO L231 Difference]: Finished difference. Result has 392 places, 388 transitions, 800 flow [2024-11-13 15:24:06,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=392, PETRI_TRANSITIONS=388} [2024-11-13 15:24:06,213 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 1 predicate places. [2024-11-13 15:24:06,214 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 388 transitions, 800 flow [2024-11-13 15:24:06,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 15:24:06,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:06,217 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] [2024-11-13 15:24:06,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:24:06,217 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:06,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1579120254, now seen corresponding path program 1 times [2024-11-13 15:24:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:06,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21423542] [2024-11-13 15:24:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:06,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:07,357 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 15:24:07,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:07,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21423542] [2024-11-13 15:24:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21423542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:07,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316112323] [2024-11-13 15:24:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:07,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:07,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:07,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:07,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:08,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 400 [2024-11-13 15:24:08,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 388 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 15:24:08,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:08,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 400 [2024-11-13 15:24:08,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:08,713 INFO L124 PetriNetUnfolderBase]: 449/1869 cut-off events. [2024-11-13 15:24:08,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:08,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 1869 events. 449/1869 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11563 event pairs, 342 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2603. Up to 846 conditions per place. [2024-11-13 15:24:08,725 INFO L140 encePairwiseOnDemand]: 388/400 looper letters, 72 selfloop transitions, 10 changer transitions 0/386 dead transitions. [2024-11-13 15:24:08,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 386 transitions, 960 flow [2024-11-13 15:24:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1932 transitions. [2024-11-13 15:24:08,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.805 [2024-11-13 15:24:08,730 INFO L175 Difference]: Start difference. First operand has 392 places, 388 transitions, 800 flow. Second operand 6 states and 1932 transitions. [2024-11-13 15:24:08,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 386 transitions, 960 flow [2024-11-13 15:24:08,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 386 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:08,738 INFO L231 Difference]: Finished difference. Result has 390 places, 386 transitions, 796 flow [2024-11-13 15:24:08,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=390, PETRI_TRANSITIONS=386} [2024-11-13 15:24:08,739 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -1 predicate places. [2024-11-13 15:24:08,739 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 386 transitions, 796 flow [2024-11-13 15:24:08,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states 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 15:24:08,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:08,741 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] [2024-11-13 15:24:08,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:24:08,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:08,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:08,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1121997936, now seen corresponding path program 1 times [2024-11-13 15:24:08,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:08,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976042443] [2024-11-13 15:24:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:08,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:08,939 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 15:24:08,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976042443] [2024-11-13 15:24:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976042443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:08,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:24:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114510861] [2024-11-13 15:24:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:08,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:24:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:24:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:24:08,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 400 [2024-11-13 15:24:08,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 386 transitions, 796 flow. Second operand has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states 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 15:24:08,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:08,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 400 [2024-11-13 15:24:08,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:09,109 INFO L124 PetriNetUnfolderBase]: 29/688 cut-off events. [2024-11-13 15:24:09,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:09,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 688 events. 29/688 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2435 event pairs, 18 based on Foata normal form. 1/637 useless extension candidates. Maximal degree in co-relation 433. Up to 45 conditions per place. [2024-11-13 15:24:09,113 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 11 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2024-11-13 15:24:09,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 387 transitions, 824 flow [2024-11-13 15:24:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:24:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:24:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1154 transitions. [2024-11-13 15:24:09,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9616666666666667 [2024-11-13 15:24:09,116 INFO L175 Difference]: Start difference. First operand has 390 places, 386 transitions, 796 flow. Second operand 3 states and 1154 transitions. [2024-11-13 15:24:09,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 387 transitions, 824 flow [2024-11-13 15:24:09,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 387 transitions, 804 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:09,125 INFO L231 Difference]: Finished difference. Result has 388 places, 387 transitions, 788 flow [2024-11-13 15:24:09,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=788, PETRI_PLACES=388, PETRI_TRANSITIONS=387} [2024-11-13 15:24:09,128 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -3 predicate places. [2024-11-13 15:24:09,128 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 387 transitions, 788 flow [2024-11-13 15:24:09,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states 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 15:24:09,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:09,129 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] [2024-11-13 15:24:09,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:24:09,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:09,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1285426785, now seen corresponding path program 1 times [2024-11-13 15:24:09,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:09,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130861708] [2024-11-13 15:24:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:10,049 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 15:24:10,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:10,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130861708] [2024-11-13 15:24:10,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130861708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:10,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:10,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:10,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377671087] [2024-11-13 15:24:10,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:10,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:10,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:10,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 400 [2024-11-13 15:24:10,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 387 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 309.6666666666667) internal successors, (1858), 6 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states 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 15:24:10,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:10,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 400 [2024-11-13 15:24:10,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:11,248 INFO L124 PetriNetUnfolderBase]: 450/1991 cut-off events. [2024-11-13 15:24:11,248 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:24:11,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2943 conditions, 1991 events. 450/1991 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12308 event pairs, 342 based on Foata normal form. 0/1782 useless extension candidates. Maximal degree in co-relation 2658. Up to 894 conditions per place. [2024-11-13 15:24:11,260 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 79 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-11-13 15:24:11,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 386 transitions, 954 flow [2024-11-13 15:24:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1927 transitions. [2024-11-13 15:24:11,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8029166666666666 [2024-11-13 15:24:11,266 INFO L175 Difference]: Start difference. First operand has 388 places, 387 transitions, 788 flow. Second operand 6 states and 1927 transitions. [2024-11-13 15:24:11,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 386 transitions, 954 flow [2024-11-13 15:24:11,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 386 transitions, 952 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:24:11,273 INFO L231 Difference]: Finished difference. Result has 391 places, 386 transitions, 794 flow [2024-11-13 15:24:11,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=794, PETRI_PLACES=391, PETRI_TRANSITIONS=386} [2024-11-13 15:24:11,275 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 0 predicate places. [2024-11-13 15:24:11,275 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 386 transitions, 794 flow [2024-11-13 15:24:11,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.6666666666667) internal successors, (1858), 6 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states 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 15:24:11,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:11,276 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] [2024-11-13 15:24:11,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:24:11,278 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:11,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:11,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1570912277, now seen corresponding path program 1 times [2024-11-13 15:24:11,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:11,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832172792] [2024-11-13 15:24:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:11,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:11,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:11,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832172792] [2024-11-13 15:24:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832172792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:11,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:11,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:24:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172283568] [2024-11-13 15:24:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:11,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:24:11,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:11,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:24:11,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:24:11,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 400 [2024-11-13 15:24:11,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 386 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states 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 15:24:11,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:11,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 400 [2024-11-13 15:24:11,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:11,632 INFO L124 PetriNetUnfolderBase]: 29/874 cut-off events. [2024-11-13 15:24:11,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:11,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 874 events. 29/874 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2400 event pairs, 18 based on Foata normal form. 2/818 useless extension candidates. Maximal degree in co-relation 511. Up to 49 conditions per place. [2024-11-13 15:24:11,638 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 11 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2024-11-13 15:24:11,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 387 transitions, 822 flow [2024-11-13 15:24:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:24:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:24:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1154 transitions. [2024-11-13 15:24:11,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9616666666666667 [2024-11-13 15:24:11,642 INFO L175 Difference]: Start difference. First operand has 391 places, 386 transitions, 794 flow. Second operand 3 states and 1154 transitions. [2024-11-13 15:24:11,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 387 transitions, 822 flow [2024-11-13 15:24:11,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 387 transitions, 812 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:11,649 INFO L231 Difference]: Finished difference. Result has 389 places, 387 transitions, 796 flow [2024-11-13 15:24:11,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=796, PETRI_PLACES=389, PETRI_TRANSITIONS=387} [2024-11-13 15:24:11,651 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -2 predicate places. [2024-11-13 15:24:11,651 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 387 transitions, 796 flow [2024-11-13 15:24:11,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states 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 15:24:11,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:11,652 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 15:24:11,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:24:11,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:11,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:11,653 INFO L85 PathProgramCache]: Analyzing trace with hash 239412469, now seen corresponding path program 1 times [2024-11-13 15:24:11,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:11,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048115869] [2024-11-13 15:24:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:12,566 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 15:24:12,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:12,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048115869] [2024-11-13 15:24:12,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048115869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:12,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:12,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:12,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417520528] [2024-11-13 15:24:12,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:12,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:13,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 400 [2024-11-13 15:24:13,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 387 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 336.5) internal successors, (2019), 6 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states 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 15:24:13,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:13,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 400 [2024-11-13 15:24:13,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:13,720 INFO L124 PetriNetUnfolderBase]: 75/1186 cut-off events. [2024-11-13 15:24:13,720 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 15:24:13,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 1186 events. 75/1186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4585 event pairs, 42 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 951. Up to 263 conditions per place. [2024-11-13 15:24:13,727 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 54 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-11-13 15:24:13,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 386 transitions, 912 flow [2024-11-13 15:24:13,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2052 transitions. [2024-11-13 15:24:13,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.855 [2024-11-13 15:24:13,733 INFO L175 Difference]: Start difference. First operand has 389 places, 387 transitions, 796 flow. Second operand 6 states and 2052 transitions. [2024-11-13 15:24:13,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 386 transitions, 912 flow [2024-11-13 15:24:13,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 386 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:24:13,743 INFO L231 Difference]: Finished difference. Result has 392 places, 386 transitions, 802 flow [2024-11-13 15:24:13,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=392, PETRI_TRANSITIONS=386} [2024-11-13 15:24:13,745 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 1 predicate places. [2024-11-13 15:24:13,745 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 386 transitions, 802 flow [2024-11-13 15:24:13,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 336.5) internal successors, (2019), 6 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states 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 15:24:13,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:13,749 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] [2024-11-13 15:24:13,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:24:13,749 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:13,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1061692995, now seen corresponding path program 1 times [2024-11-13 15:24:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:13,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904863023] [2024-11-13 15:24:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:13,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:14,595 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 15:24:14,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:14,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904863023] [2024-11-13 15:24:14,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904863023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:14,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:14,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:14,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001039330] [2024-11-13 15:24:14,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:14,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:14,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:15,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 400 [2024-11-13 15:24:15,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 386 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states 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 15:24:15,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:15,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 400 [2024-11-13 15:24:15,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:16,042 INFO L124 PetriNetUnfolderBase]: 450/2171 cut-off events. [2024-11-13 15:24:16,042 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:24:16,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3227 conditions, 2171 events. 450/2171 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12288 event pairs, 342 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2701. Up to 960 conditions per place. [2024-11-13 15:24:16,057 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 79 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2024-11-13 15:24:16,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 385 transitions, 968 flow [2024-11-13 15:24:16,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1927 transitions. [2024-11-13 15:24:16,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8029166666666666 [2024-11-13 15:24:16,063 INFO L175 Difference]: Start difference. First operand has 392 places, 386 transitions, 802 flow. Second operand 6 states and 1927 transitions. [2024-11-13 15:24:16,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 385 transitions, 968 flow [2024-11-13 15:24:16,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 385 transitions, 958 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:16,072 INFO L231 Difference]: Finished difference. Result has 391 places, 385 transitions, 800 flow [2024-11-13 15:24:16,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=391, PETRI_TRANSITIONS=385} [2024-11-13 15:24:16,075 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 0 predicate places. [2024-11-13 15:24:16,075 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 385 transitions, 800 flow [2024-11-13 15:24:16,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states 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 15:24:16,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:16,078 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] [2024-11-13 15:24:16,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:24:16,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:16,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1582921648, now seen corresponding path program 1 times [2024-11-13 15:24:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:16,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125283942] [2024-11-13 15:24:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:16,952 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 15:24:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:16,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125283942] [2024-11-13 15:24:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125283942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:16,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:16,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:16,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546290021] [2024-11-13 15:24:16,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:16,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:16,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:16,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:17,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 400 [2024-11-13 15:24:17,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 385 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states 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 15:24:17,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:17,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 400 [2024-11-13 15:24:17,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:18,248 INFO L124 PetriNetUnfolderBase]: 450/2167 cut-off events. [2024-11-13 15:24:18,248 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:24:18,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 2167 events. 450/2167 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12289 event pairs, 342 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2717. Up to 944 conditions per place. [2024-11-13 15:24:18,263 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 75 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-11-13 15:24:18,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 384 transitions, 958 flow [2024-11-13 15:24:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:18,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1947 transitions. [2024-11-13 15:24:18,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.81125 [2024-11-13 15:24:18,270 INFO L175 Difference]: Start difference. First operand has 391 places, 385 transitions, 800 flow. Second operand 6 states and 1947 transitions. [2024-11-13 15:24:18,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 384 transitions, 958 flow [2024-11-13 15:24:18,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 384 transitions, 948 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:18,279 INFO L231 Difference]: Finished difference. Result has 390 places, 384 transitions, 798 flow [2024-11-13 15:24:18,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=798, PETRI_PLACES=390, PETRI_TRANSITIONS=384} [2024-11-13 15:24:18,281 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -1 predicate places. [2024-11-13 15:24:18,281 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 384 transitions, 798 flow [2024-11-13 15:24:18,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states 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 15:24:18,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:18,283 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] [2024-11-13 15:24:18,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:24:18,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:18,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:18,283 INFO L85 PathProgramCache]: Analyzing trace with hash -366847223, now seen corresponding path program 1 times [2024-11-13 15:24:18,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:18,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491658183] [2024-11-13 15:24:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:18,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:19,100 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 15:24:19,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:19,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491658183] [2024-11-13 15:24:19,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491658183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:19,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:19,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:19,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057378754] [2024-11-13 15:24:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:19,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:19,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:19,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:19,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:19,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 400 [2024-11-13 15:24:19,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 384 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states 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 15:24:19,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:19,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 400 [2024-11-13 15:24:19,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:20,267 INFO L124 PetriNetUnfolderBase]: 450/2163 cut-off events. [2024-11-13 15:24:20,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:24:20,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3203 conditions, 2163 events. 450/2163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12233 event pairs, 342 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2732. Up to 944 conditions per place. [2024-11-13 15:24:20,281 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 75 selfloop transitions, 5 changer transitions 0/383 dead transitions. [2024-11-13 15:24:20,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 383 transitions, 956 flow [2024-11-13 15:24:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1947 transitions. [2024-11-13 15:24:20,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.81125 [2024-11-13 15:24:20,288 INFO L175 Difference]: Start difference. First operand has 390 places, 384 transitions, 798 flow. Second operand 6 states and 1947 transitions. [2024-11-13 15:24:20,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 383 transitions, 956 flow [2024-11-13 15:24:20,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 383 transitions, 946 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:20,296 INFO L231 Difference]: Finished difference. Result has 389 places, 383 transitions, 796 flow [2024-11-13 15:24:20,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=389, PETRI_TRANSITIONS=383} [2024-11-13 15:24:20,298 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -2 predicate places. [2024-11-13 15:24:20,298 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 383 transitions, 796 flow [2024-11-13 15:24:20,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.0) internal successors, (1902), 6 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states 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 15:24:20,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:20,300 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] [2024-11-13 15:24:20,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:24:20,300 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:20,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:20,301 INFO L85 PathProgramCache]: Analyzing trace with hash 825881978, now seen corresponding path program 1 times [2024-11-13 15:24:20,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:20,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737013621] [2024-11-13 15:24:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:21,199 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 15:24:21,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:21,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737013621] [2024-11-13 15:24:21,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737013621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:21,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:24:21,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:24:21,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612429769] [2024-11-13 15:24:21,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:21,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:21,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:24:21,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 400 [2024-11-13 15:24:21,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 383 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 313.5) internal successors, (1881), 6 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states 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 15:24:21,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:21,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 400 [2024-11-13 15:24:21,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:22,432 INFO L124 PetriNetUnfolderBase]: 450/2159 cut-off events. [2024-11-13 15:24:22,433 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:24:22,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 2159 events. 450/2159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12299 event pairs, 342 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2745. Up to 964 conditions per place. [2024-11-13 15:24:22,447 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 80 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2024-11-13 15:24:22,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 382 transitions, 964 flow [2024-11-13 15:24:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1922 transitions. [2024-11-13 15:24:22,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8008333333333333 [2024-11-13 15:24:22,453 INFO L175 Difference]: Start difference. First operand has 389 places, 383 transitions, 796 flow. Second operand 6 states and 1922 transitions. [2024-11-13 15:24:22,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 382 transitions, 964 flow [2024-11-13 15:24:22,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 382 transitions, 954 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:22,461 INFO L231 Difference]: Finished difference. Result has 388 places, 382 transitions, 794 flow [2024-11-13 15:24:22,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=794, PETRI_PLACES=388, PETRI_TRANSITIONS=382} [2024-11-13 15:24:22,465 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, -3 predicate places. [2024-11-13 15:24:22,465 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 382 transitions, 794 flow [2024-11-13 15:24:22,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 313.5) internal successors, (1881), 6 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states 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 15:24:22,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:22,467 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, 1, 1, 1, 1, 1, 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 15:24:22,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:24:22,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:22,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash -109407830, now seen corresponding path program 1 times [2024-11-13 15:24:22,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:22,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133754122] [2024-11-13 15:24:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:22,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:22,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133754122] [2024-11-13 15:24:22,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133754122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:24:22,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549166065] [2024-11-13 15:24:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:22,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:22,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:22,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:24:22,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:24:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:23,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:24:23,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:24:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:23,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:24:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:23,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549166065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:24:23,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:24:23,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:24:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348121311] [2024-11-13 15:24:23,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:24:23,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:24:23,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:23,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:24:23,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:24:23,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 400 [2024-11-13 15:24:23,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 382 transitions, 794 flow. Second operand has 10 states, 10 states have (on average 379.0) internal successors, (3790), 10 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states 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 15:24:23,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:23,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 400 [2024-11-13 15:24:23,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:24,034 INFO L124 PetriNetUnfolderBase]: 29/1038 cut-off events. [2024-11-13 15:24:24,034 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 15:24:24,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 1038 events. 29/1038 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1809 event pairs, 18 based on Foata normal form. 4/1004 useless extension candidates. Maximal degree in co-relation 504. Up to 49 conditions per place. [2024-11-13 15:24:24,039 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 15 selfloop transitions, 9 changer transitions 0/390 dead transitions. [2024-11-13 15:24:24,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 390 transitions, 860 flow [2024-11-13 15:24:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:24:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:24:24,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3419 transitions. [2024-11-13 15:24:24,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9497222222222222 [2024-11-13 15:24:24,048 INFO L175 Difference]: Start difference. First operand has 388 places, 382 transitions, 794 flow. Second operand 9 states and 3419 transitions. [2024-11-13 15:24:24,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 390 transitions, 860 flow [2024-11-13 15:24:24,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 390 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:24:24,057 INFO L231 Difference]: Finished difference. Result has 394 places, 388 transitions, 834 flow [2024-11-13 15:24:24,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=834, PETRI_PLACES=394, PETRI_TRANSITIONS=388} [2024-11-13 15:24:24,059 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 3 predicate places. [2024-11-13 15:24:24,059 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 388 transitions, 834 flow [2024-11-13 15:24:24,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 379.0) internal successors, (3790), 10 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states 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 15:24:24,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:24,061 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:24,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:24:24,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:24,266 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:24,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:24,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1519379436, now seen corresponding path program 2 times [2024-11-13 15:24:24,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:24,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066959254] [2024-11-13 15:24:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:24,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-13 15:24:24,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066959254] [2024-11-13 15:24:24,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066959254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:24:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098993225] [2024-11-13 15:24:24,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:24:24,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:24,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:24,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:24:24,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:24:25,210 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:24:25,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:24:25,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 15:24:25,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:24:25,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:24:25,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 15:24:25,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:24:25,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 15:24:25,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:24:25,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 15:24:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-13 15:24:25,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:24:25,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098993225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:25,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:24:25,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-13 15:24:25,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471189991] [2024-11-13 15:24:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:25,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:25,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:25,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:24:27,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 400 [2024-11-13 15:24:27,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 388 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states 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 15:24:27,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:27,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 400 [2024-11-13 15:24:27,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:27,848 INFO L124 PetriNetUnfolderBase]: 199/1939 cut-off events. [2024-11-13 15:24:27,848 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-13 15:24:27,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2557 conditions, 1939 events. 199/1939 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8826 event pairs, 54 based on Foata normal form. 0/1796 useless extension candidates. Maximal degree in co-relation 1889. Up to 448 conditions per place. [2024-11-13 15:24:27,862 INFO L140 encePairwiseOnDemand]: 388/400 looper letters, 71 selfloop transitions, 23 changer transitions 0/423 dead transitions. [2024-11-13 15:24:27,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 423 transitions, 1100 flow [2024-11-13 15:24:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2093 transitions. [2024-11-13 15:24:27,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8720833333333333 [2024-11-13 15:24:27,871 INFO L175 Difference]: Start difference. First operand has 394 places, 388 transitions, 834 flow. Second operand 6 states and 2093 transitions. [2024-11-13 15:24:27,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 423 transitions, 1100 flow [2024-11-13 15:24:27,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 423 transitions, 1094 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 15:24:27,881 INFO L231 Difference]: Finished difference. Result has 403 places, 410 transitions, 986 flow [2024-11-13 15:24:27,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=986, PETRI_PLACES=403, PETRI_TRANSITIONS=410} [2024-11-13 15:24:27,883 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 12 predicate places. [2024-11-13 15:24:27,884 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 410 transitions, 986 flow [2024-11-13 15:24:27,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states 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 15:24:27,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:27,886 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:27,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:24:28,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:24:28,087 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting gErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:28,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -866846824, now seen corresponding path program 1 times [2024-11-13 15:24:28,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:28,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238000992] [2024-11-13 15:24:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-13 15:24:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:28,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238000992] [2024-11-13 15:24:28,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238000992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:24:28,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083860380] [2024-11-13 15:24:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:28,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:28,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:28,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:24:28,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:24:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:29,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:24:29,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:24:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:29,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:24:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:24:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083860380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:24:30,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:24:30,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-13 15:24:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189381373] [2024-11-13 15:24:30,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:24:30,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 15:24:30,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:30,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:24:30,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:24:30,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 400 [2024-11-13 15:24:30,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 410 transitions, 986 flow. Second operand has 19 states, 19 states have (on average 373.6842105263158) internal successors, (7100), 19 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states 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 15:24:30,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:30,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 400 [2024-11-13 15:24:30,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:33,392 INFO L124 PetriNetUnfolderBase]: 186/3477 cut-off events. [2024-11-13 15:24:33,392 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2024-11-13 15:24:33,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4201 conditions, 3477 events. 186/3477 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9500 event pairs, 55 based on Foata normal form. 13/3321 useless extension candidates. Maximal degree in co-relation 2885. Up to 146 conditions per place. [2024-11-13 15:24:33,407 INFO L140 encePairwiseOnDemand]: 389/400 looper letters, 47 selfloop transitions, 68 changer transitions 0/496 dead transitions. [2024-11-13 15:24:33,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 496 transitions, 1626 flow [2024-11-13 15:24:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-13 15:24:33,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-13 15:24:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 23501 transitions. [2024-11-13 15:24:33,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9325793650793651 [2024-11-13 15:24:33,445 INFO L175 Difference]: Start difference. First operand has 403 places, 410 transitions, 986 flow. Second operand 63 states and 23501 transitions. [2024-11-13 15:24:33,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 496 transitions, 1626 flow [2024-11-13 15:24:33,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 496 transitions, 1626 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:24:33,457 INFO L231 Difference]: Finished difference. Result has 481 places, 472 transitions, 1506 flow [2024-11-13 15:24:33,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1506, PETRI_PLACES=481, PETRI_TRANSITIONS=472} [2024-11-13 15:24:33,459 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 90 predicate places. [2024-11-13 15:24:33,460 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 472 transitions, 1506 flow [2024-11-13 15:24:33,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 373.6842105263158) internal successors, (7100), 19 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states 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 15:24:33,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:33,467 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:33,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:24:33,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 15:24:33,668 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting gErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:33,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:33,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1303849748, now seen corresponding path program 2 times [2024-11-13 15:24:33,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406146089] [2024-11-13 15:24:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:33,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 15:24:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406146089] [2024-11-13 15:24:38,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406146089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:24:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722436964] [2024-11-13 15:24:38,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:24:38,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:38,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:24:38,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:24:39,171 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:24:39,171 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:24:39,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:24:39,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:24:39,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:24:39,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 15:24:39,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:24:39,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 15:24:39,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:24:39,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 15:24:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-11-13 15:24:39,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:24:39,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722436964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:24:39,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:24:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 15:24:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050668496] [2024-11-13 15:24:39,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:24:39,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:24:39,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:24:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:24:40,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 400 [2024-11-13 15:24:40,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 472 transitions, 1506 flow. Second operand has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states 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 15:24:40,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:40,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 400 [2024-11-13 15:24:40,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:42,899 INFO L124 PetriNetUnfolderBase]: 311/4033 cut-off events. [2024-11-13 15:24:42,900 INFO L125 PetriNetUnfolderBase]: For 699/732 co-relation queries the response was YES. [2024-11-13 15:24:42,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5891 conditions, 4033 events. 311/4033 cut-off events. For 699/732 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15567 event pairs, 61 based on Foata normal form. 8/3827 useless extension candidates. Maximal degree in co-relation 3813. Up to 1009 conditions per place. [2024-11-13 15:24:42,919 INFO L140 encePairwiseOnDemand]: 388/400 looper letters, 84 selfloop transitions, 31 changer transitions 0/511 dead transitions. [2024-11-13 15:24:42,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 511 transitions, 1856 flow [2024-11-13 15:24:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:24:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:24:42,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2089 transitions. [2024-11-13 15:24:42,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8704166666666666 [2024-11-13 15:24:42,922 INFO L175 Difference]: Start difference. First operand has 481 places, 472 transitions, 1506 flow. Second operand 6 states and 2089 transitions. [2024-11-13 15:24:42,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 511 transitions, 1856 flow [2024-11-13 15:24:42,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 511 transitions, 1780 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-13 15:24:42,938 INFO L231 Difference]: Finished difference. Result has 484 places, 502 transitions, 1688 flow [2024-11-13 15:24:42,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1688, PETRI_PLACES=484, PETRI_TRANSITIONS=502} [2024-11-13 15:24:42,939 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 93 predicate places. [2024-11-13 15:24:42,939 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 502 transitions, 1688 flow [2024-11-13 15:24:42,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states 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 15:24:42,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:42,941 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:42,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:24:43,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:43,142 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:43,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash -968911591, now seen corresponding path program 1 times [2024-11-13 15:24:43,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:43,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244153693] [2024-11-13 15:24:43,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:43,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:24:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 15:24:47,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:24:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244153693] [2024-11-13 15:24:47,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244153693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:24:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432613366] [2024-11-13 15:24:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:47,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:24:47,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:24:47,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:24:47,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:24:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:24:49,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 5737 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:24:49,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:24:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 15:24:50,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:24:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 15:24:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432613366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:24:52,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:24:52,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-13 15:24:52,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390092801] [2024-11-13 15:24:52,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:24:52,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 15:24:52,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:24:52,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 15:24:52,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 15:24:52,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 400 [2024-11-13 15:24:52,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 502 transitions, 1688 flow. Second operand has 34 states, 34 states have (on average 379.1764705882353) internal successors, (12892), 34 states have internal predecessors, (12892), 0 states have call successors, (0), 0 states 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 15:24:52,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:24:52,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 400 [2024-11-13 15:24:52,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:24:56,400 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([981] L1052-3-->L1057-2: Formula: (and (= |v_gThread1of1ForFork1_#t~ret27#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#c~0.base_137| (store (select |v_#pthreadsMutex_32| |v_~#c~0.base_137|) (+ |v_~#c~0.offset_137| 108 (* |v_gThread1of1ForFork1_~j~1#1_29| 28)) 0)))) InVars {~#c~0.base=|v_~#c~0.base_137|, #pthreadsMutex=|v_#pthreadsMutex_32|, gThread1of1ForFork1_~j~1#1=|v_gThread1of1ForFork1_~j~1#1_29|, ~#c~0.offset=|v_~#c~0.offset_137|} OutVars{~#c~0.base=|v_~#c~0.base_137|, #pthreadsMutex=|v_#pthreadsMutex_31|, gThread1of1ForFork1_~j~1#1=|v_gThread1of1ForFork1_~j~1#1_29|, gThread1of1ForFork1_#t~ret27#1=|v_gThread1of1ForFork1_#t~ret27#1_1|, ~#c~0.offset=|v_~#c~0.offset_137|} AuxVars[] AssignedVars[#pthreadsMutex, gThread1of1ForFork1_#t~ret27#1][440], [Black: 3313#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), 452#true, Black: 3325#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 2009#true, Black: 456#(<= |ULTIMATE.start_main_~j~2#1| 1), Black: 1329#(< |ULTIMATE.start_main_~j~2#1| 30), 3331#true, Black: 6033#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~2#1| 28)), Black: 6043#(and (= 0 |ULTIMATE.start_main_#t~post31#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 410#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 3333#(= |ULTIMATE.start_main_~i~0#1| 0), 392#true, Black: 6021#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~2#1| 3)), Black: 3335#(<= |ULTIMATE.start_main_~i~0#1| 1), 121#ULTIMATE.startFINALtrue, Black: 6063#(and (<= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~j~2#1| 3)), Black: 10513#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0), Black: 10521#(and (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 4789#(< |ULTIMATE.start_main_~j~2#1| 30), Black: 10517#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 6039#(and (<= |ULTIMATE.start_main_~j~2#1| 29) (= |ULTIMATE.start_main_~i~0#1| 0)), Black: 10525#(and (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 5072#(< |ULTIMATE.start_main_~j~2#1| 28), Black: 6027#(and (<= |ULTIMATE.start_main_~j~2#1| 27) (= |ULTIMATE.start_main_~i~0#1| 0)), Black: 4800#(< |ULTIMATE.start_main_~j~2#1| 29), Black: 420#(= |ULTIMATE.start_main_~j~2#1| 0), Black: 6075#(and (<= |ULTIMATE.start_main_~j~2#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 6069#(and (<= |ULTIMATE.start_main_~j~2#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4548#(<= |ULTIMATE.start_main_~j~2#1| 3), 394#true, Black: 6081#(and (<= |ULTIMATE.start_main_~j~2#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), 6122#true, 227#L1057-2true, 10531#true, 249#L1037-2true, Black: 3317#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 3321#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0))]) [2024-11-13 15:24:56,400 INFO L294 olderBase$Statistics]: this new event has 2994 ancestors and is cut-off event [2024-11-13 15:24:56,401 INFO L297 olderBase$Statistics]: existing Event has 2967 ancestors and is cut-off event [2024-11-13 15:24:56,401 INFO L297 olderBase$Statistics]: existing Event has 2967 ancestors and is cut-off event [2024-11-13 15:24:56,401 INFO L297 olderBase$Statistics]: existing Event has 2967 ancestors and is cut-off event [2024-11-13 15:24:58,253 INFO L124 PetriNetUnfolderBase]: 340/6503 cut-off events. [2024-11-13 15:24:58,253 INFO L125 PetriNetUnfolderBase]: For 3579/3597 co-relation queries the response was YES. [2024-11-13 15:24:58,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8401 conditions, 6503 events. 340/6503 cut-off events. For 3579/3597 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17971 event pairs, 100 based on Foata normal form. 30/6265 useless extension candidates. Maximal degree in co-relation 5751. Up to 259 conditions per place. [2024-11-13 15:24:58,281 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 47 selfloop transitions, 135 changer transitions 0/603 dead transitions. [2024-11-13 15:24:58,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 603 transitions, 2816 flow [2024-11-13 15:24:58,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-13 15:24:58,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-13 15:24:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 17045 transitions. [2024-11-13 15:24:58,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9469444444444445 [2024-11-13 15:24:58,303 INFO L175 Difference]: Start difference. First operand has 484 places, 502 transitions, 1688 flow. Second operand 45 states and 17045 transitions. [2024-11-13 15:24:58,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 603 transitions, 2816 flow [2024-11-13 15:24:58,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 603 transitions, 2816 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:24:58,330 INFO L231 Difference]: Finished difference. Result has 537 places, 577 transitions, 2562 flow [2024-11-13 15:24:58,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2562, PETRI_PLACES=537, PETRI_TRANSITIONS=577} [2024-11-13 15:24:58,332 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 146 predicate places. [2024-11-13 15:24:58,332 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 577 transitions, 2562 flow [2024-11-13 15:24:58,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 379.1764705882353) internal successors, (12892), 34 states have internal predecessors, (12892), 0 states have call successors, (0), 0 states 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 15:24:58,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:24:58,337 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:58,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:24:58,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 15:24:58,538 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:24:58,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:24:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1243044839, now seen corresponding path program 2 times [2024-11-13 15:24:58,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:24:58,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041103292] [2024-11-13 15:24:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:24:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-13 15:25:19,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041103292] [2024-11-13 15:25:19,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041103292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:25:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317517349] [2024-11-13 15:25:19,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:25:19,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:19,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:19,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:19,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:25:20,710 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:25:20,710 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:25:20,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 15:25:20,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:20,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 15:25:20,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 15:25:20,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:25:20,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-13 15:25:20,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:25:20,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-13 15:25:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-11-13 15:25:21,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:25:21,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317517349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:21,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:25:21,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-13 15:25:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268834758] [2024-11-13 15:25:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:25:21,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:25:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 15:25:21,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 400 [2024-11-13 15:25:21,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 577 transitions, 2562 flow. Second operand has 6 states, 6 states have (on average 339.5) internal successors, (2037), 6 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states 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 15:25:21,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:21,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 400 [2024-11-13 15:25:21,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:33,946 INFO L124 PetriNetUnfolderBase]: 451/6757 cut-off events. [2024-11-13 15:25:33,946 INFO L125 PetriNetUnfolderBase]: For 2357/2442 co-relation queries the response was YES. [2024-11-13 15:25:33,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10697 conditions, 6757 events. 451/6757 cut-off events. For 2357/2442 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21324 event pairs, 87 based on Foata normal form. 34/6560 useless extension candidates. Maximal degree in co-relation 7292. Up to 1847 conditions per place. [2024-11-13 15:25:33,992 INFO L140 encePairwiseOnDemand]: 389/400 looper letters, 108 selfloop transitions, 55 changer transitions 0/638 dead transitions. [2024-11-13 15:25:33,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 638 transitions, 3214 flow [2024-11-13 15:25:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:25:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:25:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2086 transitions. [2024-11-13 15:25:33,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8691666666666666 [2024-11-13 15:25:33,995 INFO L175 Difference]: Start difference. First operand has 537 places, 577 transitions, 2562 flow. Second operand 6 states and 2086 transitions. [2024-11-13 15:25:33,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 638 transitions, 3214 flow [2024-11-13 15:25:34,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 638 transitions, 3106 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-13 15:25:34,031 INFO L231 Difference]: Finished difference. Result has 529 places, 626 transitions, 3008 flow [2024-11-13 15:25:34,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=2454, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3008, PETRI_PLACES=529, PETRI_TRANSITIONS=626} [2024-11-13 15:25:34,032 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 138 predicate places. [2024-11-13 15:25:34,032 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 626 transitions, 3008 flow [2024-11-13 15:25:34,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 339.5) internal successors, (2037), 6 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states 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 15:25:34,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:34,034 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:34,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:25:34,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 15:25:34,235 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting gErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:25:34,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:34,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1921128099, now seen corresponding path program 1 times [2024-11-13 15:25:34,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:34,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989035126] [2024-11-13 15:25:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:34,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-13 15:25:51,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989035126] [2024-11-13 15:25:51,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989035126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:25:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189931440] [2024-11-13 15:25:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:25:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:51,515 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:25:51,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:25:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:55,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 11643 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 15:25:55,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-13 15:25:57,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:26:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-13 15:26:00,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189931440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:26:00,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:26:00,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-13 15:26:00,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258872092] [2024-11-13 15:26:00,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:26:00,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-13 15:26:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-13 15:26:00,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 15:26:00,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 400 [2024-11-13 15:26:00,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 626 transitions, 3008 flow. Second operand has 63 states, 63 states have (on average 379.14285714285717) internal successors, (23886), 63 states have internal predecessors, (23886), 0 states have call successors, (0), 0 states 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 15:26:00,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:00,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 400 [2024-11-13 15:26:00,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:26:13,904 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([981] L1052-3-->L1057-2: Formula: (and (= |v_gThread1of1ForFork1_#t~ret27#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#c~0.base_137| (store (select |v_#pthreadsMutex_32| |v_~#c~0.base_137|) (+ |v_~#c~0.offset_137| 108 (* |v_gThread1of1ForFork1_~j~1#1_29| 28)) 0)))) InVars {~#c~0.base=|v_~#c~0.base_137|, #pthreadsMutex=|v_#pthreadsMutex_32|, gThread1of1ForFork1_~j~1#1=|v_gThread1of1ForFork1_~j~1#1_29|, ~#c~0.offset=|v_~#c~0.offset_137|} OutVars{~#c~0.base=|v_~#c~0.base_137|, #pthreadsMutex=|v_#pthreadsMutex_31|, gThread1of1ForFork1_~j~1#1=|v_gThread1of1ForFork1_~j~1#1_29|, gThread1of1ForFork1_#t~ret27#1=|v_gThread1of1ForFork1_#t~ret27#1_1|, ~#c~0.offset=|v_~#c~0.offset_137|} AuxVars[] AssignedVars[#pthreadsMutex, gThread1of1ForFork1_#t~ret27#1][559], [Black: 3313#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), 452#true, Black: 3325#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 2009#true, Black: 28159#(= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0), Black: 28171#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 2 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 3 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), Black: 28163#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), Black: 28167#(and (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ 2 |fThread1of1ForFork0_~pos~0#1.offset|)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) (+ |fThread1of1ForFork0_~pos~0#1.offset| 1)) 0) (= (select (select |#race| |fThread1of1ForFork0_~pos~0#1.base|) |fThread1of1ForFork0_~pos~0#1.offset|) 0)), 3331#true, 19420#true, Black: 410#(= |ULTIMATE.start_main_~i~0#1| 0), 121#ULTIMATE.startFINALtrue, Black: 10513#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0), Black: 10521#(and (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 10517#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 10525#(and (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| 1 (* 8 |gThread1of1ForFork1_~j~1#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |gThread1of1ForFork1_~j~1#1|))) 0)), Black: 420#(= |ULTIMATE.start_main_~j~2#1| 0), 394#true, 227#L1057-2true, 249#L1037-2true, 28177#true, Black: 17881#(< |ULTIMATE.start_main_~j~2#1| 26), Black: 18425#(< |ULTIMATE.start_main_~j~2#1| 24), Black: 17054#(< |ULTIMATE.start_main_~j~2#1| 30), Black: 10547#(<= |ULTIMATE.start_main_~j~2#1| 7), Black: 456#(<= |ULTIMATE.start_main_~j~2#1| 1), Black: 17609#(< |ULTIMATE.start_main_~j~2#1| 27), Black: 1329#(< |ULTIMATE.start_main_~j~2#1| 30), Black: 17065#(< |ULTIMATE.start_main_~j~2#1| 29), Black: 6033#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~2#1| 28)), Black: 17337#(< |ULTIMATE.start_main_~j~2#1| 28), Black: 18153#(< |ULTIMATE.start_main_~j~2#1| 25), Black: 6043#(and (= 0 |ULTIMATE.start_main_#t~post31#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 3333#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 6021#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~2#1| 3)), 392#true, Black: 3335#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 6063#(and (<= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~j~2#1| 3)), Black: 4789#(< |ULTIMATE.start_main_~j~2#1| 30), Black: 6039#(and (<= |ULTIMATE.start_main_~j~2#1| 29) (= |ULTIMATE.start_main_~i~0#1| 0)), Black: 5072#(< |ULTIMATE.start_main_~j~2#1| 28), Black: 6027#(and (<= |ULTIMATE.start_main_~j~2#1| 27) (= |ULTIMATE.start_main_~i~0#1| 0)), Black: 4800#(< |ULTIMATE.start_main_~j~2#1| 29), Black: 6075#(and (<= |ULTIMATE.start_main_~j~2#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 6069#(and (<= |ULTIMATE.start_main_~j~2#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4548#(<= |ULTIMATE.start_main_~j~2#1| 3), Black: 6081#(and (<= |ULTIMATE.start_main_~j~2#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), 6122#true, 10531#true, Black: 3317#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 3321#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0))]) [2024-11-13 15:26:13,904 INFO L294 olderBase$Statistics]: this new event has 5694 ancestors and is cut-off event [2024-11-13 15:26:13,905 INFO L297 olderBase$Statistics]: existing Event has 5667 ancestors and is cut-off event [2024-11-13 15:26:13,905 INFO L297 olderBase$Statistics]: existing Event has 5667 ancestors and is cut-off event [2024-11-13 15:26:13,905 INFO L297 olderBase$Statistics]: existing Event has 5667 ancestors and is cut-off event [2024-11-13 15:26:21,145 INFO L124 PetriNetUnfolderBase]: 526/11285 cut-off events. [2024-11-13 15:26:21,145 INFO L125 PetriNetUnfolderBase]: For 15171/15277 co-relation queries the response was YES. [2024-11-13 15:26:21,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15532 conditions, 11285 events. 526/11285 cut-off events. For 15171/15277 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 24707 event pairs, 115 based on Foata normal form. 81/11035 useless extension candidates. Maximal degree in co-relation 12219. Up to 318 conditions per place. [2024-11-13 15:26:21,199 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 92 selfloop transitions, 270 changer transitions 0/832 dead transitions. [2024-11-13 15:26:21,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 832 transitions, 5918 flow [2024-11-13 15:26:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-13 15:26:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-11-13 15:26:21,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 34077 transitions. [2024-11-13 15:26:21,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9465833333333333 [2024-11-13 15:26:21,242 INFO L175 Difference]: Start difference. First operand has 529 places, 626 transitions, 3008 flow. Second operand 90 states and 34077 transitions. [2024-11-13 15:26:21,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 832 transitions, 5918 flow [2024-11-13 15:26:21,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 832 transitions, 5918 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:26:21,311 INFO L231 Difference]: Finished difference. Result has 634 places, 764 transitions, 5000 flow [2024-11-13 15:26:21,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=3008, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=5000, PETRI_PLACES=634, PETRI_TRANSITIONS=764} [2024-11-13 15:26:21,313 INFO L277 CegarLoopForPetriNet]: 391 programPoint places, 243 predicate places. [2024-11-13 15:26:21,313 INFO L471 AbstractCegarLoop]: Abstraction has has 634 places, 764 transitions, 5000 flow [2024-11-13 15:26:21,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 379.14285714285717) internal successors, (23886), 63 states have internal predecessors, (23886), 0 states have call successors, (0), 0 states 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 15:26:21,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:26:21,322 INFO L204 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:26:21,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:26:21,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 15:26:21,524 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting gErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-13 15:26:21,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:26:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1900083133, now seen corresponding path program 2 times [2024-11-13 15:26:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:26:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731892330] [2024-11-13 15:26:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:26:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:26:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:26:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 159451 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78360 trivial. 0 not checked. [2024-11-13 15:26:45,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:26:45,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731892330] [2024-11-13 15:26:45,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731892330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:26:45,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447749050] [2024-11-13 15:26:45,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:26:45,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:26:45,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:26:45,907 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:26:45,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964b0bd-2633-40ce-afc3-feb80ffa1350/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:26:49,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:26:49,672 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:26:49,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 15:26:49,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:26:49,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 15:26:49,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 15:26:49,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:26:49,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-13 15:26:49,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:26:49,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-13 15:26:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 159451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159451 trivial. 0 not checked. [2024-11-13 15:26:49,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:26:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447749050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:26:49,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:26:49,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-13 15:26:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543996438] [2024-11-13 15:26:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:26:49,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:26:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:26:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:26:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:26:50,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 400 [2024-11-13 15:26:50,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 764 transitions, 5000 flow. Second operand has 6 states, 6 states have (on average 339.6666666666667) internal successors, (2038), 6 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states 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 15:26:50,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:26:50,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 400 [2024-11-13 15:26:50,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand