./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya --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 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:35:27,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:35:27,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 20:35:27,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:35:27,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:35:27,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:35:27,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:35:27,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:35:27,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:35:27,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:35:27,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:35:27,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:35:27,547 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:35:27,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:35:27,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:35:27,548 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:35:27,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:35:27,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:35:27,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:35:27,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:35:27,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:35:27,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:35:27,552 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 20:35:27,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:35:27,553 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:35:27,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:35:27,554 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:35:27,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:35:27,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:35:27,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:35:27,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:35:27,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:35:27,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:35:27,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:35:27,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:35:27,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:35:27,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:35:27,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:35:27,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:35:27,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:35:27,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:35:27,558 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2023-11-28 20:35:27,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:35:27,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:35:27,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:35:27,775 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:35:27,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:35:27,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2023-11-28 20:35:30,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:35:30,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:35:30,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2023-11-28 20:35:30,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/data/074c466a3/ab5d32cbf5c54225818b25f136453e95/FLAG5ea83d826 [2023-11-28 20:35:30,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/data/074c466a3/ab5d32cbf5c54225818b25f136453e95 [2023-11-28 20:35:30,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:35:30,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:35:30,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:30,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:35:30,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:35:30,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:30" (1/1) ... [2023-11-28 20:35:30,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0dab12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:30, skipping insertion in model container [2023-11-28 20:35:30,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:30" (1/1) ... [2023-11-28 20:35:30,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:35:31,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:31,527 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:35:31,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:31,651 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:35:31,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31 WrapperNode [2023-11-28 20:35:31,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:31,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:31,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:35:31,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:35:31,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,716 INFO L138 Inliner]: procedures = 370, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 213 [2023-11-28 20:35:31,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:31,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:35:31,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:35:31,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:35:31,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:35:31,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:35:31,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:35:31,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:35:31,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (1/1) ... [2023-11-28 20:35:31,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:35:31,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:31,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:31,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a71f41c-3566-4adb-8969-e7e68cfb6a56/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 20:35:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:35:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:35:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 20:35:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 20:35:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 20:35:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 20:35:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:35:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:35:31,818 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:35:31,960 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:35:31,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:35:32,358 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:35:32,381 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:35:32,381 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:35:32,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:32 BoogieIcfgContainer [2023-11-28 20:35:32,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:35:32,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:35:32,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:35:32,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:35:32,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:35:30" (1/3) ... [2023-11-28 20:35:32,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e1ec7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:35:32, skipping insertion in model container [2023-11-28 20:35:32,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:31" (2/3) ... [2023-11-28 20:35:32,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e1ec7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:35:32, skipping insertion in model container [2023-11-28 20:35:32,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:32" (3/3) ... [2023-11-28 20:35:32,391 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2023-11-28 20:35:32,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:35:32,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:35:32,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-28 20:35:32,406 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:35:32,481 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 20:35:32,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 244 transitions, 492 flow [2023-11-28 20:35:32,605 INFO L124 PetriNetUnfolderBase]: 0/243 cut-off events. [2023-11-28 20:35:32,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:32,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 243 events. 0/243 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 94 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-28 20:35:32,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 244 transitions, 492 flow [2023-11-28 20:35:32,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 243 transitions, 489 flow [2023-11-28 20:35:32,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:35:32,633 INFO L357 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, mHoare=true, 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;@7c31bd2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:35:32,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-28 20:35:32,643 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:35:32,643 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-28 20:35:32,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:32,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:32,644 INFO L208 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] [2023-11-28 20:35:32,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:32,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1057674396, now seen corresponding path program 1 times [2023-11-28 20:35:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:32,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095471085] [2023-11-28 20:35:32,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:33,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095471085] [2023-11-28 20:35:33,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095471085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:33,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:33,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:33,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523528178] [2023-11-28 20:35:33,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:33,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:33,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:33,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2023-11-28 20:35:33,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 243 transitions, 489 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:33,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:33,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2023-11-28 20:35:33,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:34,326 INFO L124 PetriNetUnfolderBase]: 220/1071 cut-off events. [2023-11-28 20:35:34,327 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:35:34,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1071 events. 220/1071 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5490 event pairs, 220 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1410. Up to 493 conditions per place. [2023-11-28 20:35:34,340 INFO L140 encePairwiseOnDemand]: 226/244 looper letters, 52 selfloop transitions, 15 changer transitions 0/240 dead transitions. [2023-11-28 20:35:34,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 240 transitions, 617 flow [2023-11-28 20:35:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-11-28 20:35:34,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7609289617486339 [2023-11-28 20:35:34,360 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-11-28 20:35:34,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-11-28 20:35:34,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:34,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-11-28 20:35:34,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:34,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:34,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:34,385 INFO L175 Difference]: Start difference. First operand has 247 places, 243 transitions, 489 flow. Second operand 6 states and 1114 transitions. [2023-11-28 20:35:34,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 240 transitions, 617 flow [2023-11-28 20:35:34,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 240 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:35:34,397 INFO L231 Difference]: Finished difference. Result has 248 places, 240 transitions, 512 flow [2023-11-28 20:35:34,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=248, PETRI_TRANSITIONS=240} [2023-11-28 20:35:34,404 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 1 predicate places. [2023-11-28 20:35:34,404 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 240 transitions, 512 flow [2023-11-28 20:35:34,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:34,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:34,405 INFO L208 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] [2023-11-28 20:35:34,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:35:34,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:34,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:34,407 INFO L85 PathProgramCache]: Analyzing trace with hash -644905690, now seen corresponding path program 1 times [2023-11-28 20:35:34,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:34,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295845210] [2023-11-28 20:35:34,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:34,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295845210] [2023-11-28 20:35:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295845210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:34,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256372521] [2023-11-28 20:35:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:34,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:34,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:35,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2023-11-28 20:35:35,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 240 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:35,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2023-11-28 20:35:35,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:35,415 INFO L124 PetriNetUnfolderBase]: 220/1068 cut-off events. [2023-11-28 20:35:35,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:35,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1068 events. 220/1068 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5474 event pairs, 220 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1435. Up to 493 conditions per place. [2023-11-28 20:35:35,423 INFO L140 encePairwiseOnDemand]: 226/244 looper letters, 52 selfloop transitions, 15 changer transitions 0/237 dead transitions. [2023-11-28 20:35:35,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 237 transitions, 640 flow [2023-11-28 20:35:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-11-28 20:35:35,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7609289617486339 [2023-11-28 20:35:35,428 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-11-28 20:35:35,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-11-28 20:35:35,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:35,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-11-28 20:35:35,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,438 INFO L175 Difference]: Start difference. First operand has 248 places, 240 transitions, 512 flow. Second operand 6 states and 1114 transitions. [2023-11-28 20:35:35,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 237 transitions, 640 flow [2023-11-28 20:35:35,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 237 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:35:35,445 INFO L231 Difference]: Finished difference. Result has 245 places, 237 transitions, 506 flow [2023-11-28 20:35:35,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=245, PETRI_TRANSITIONS=237} [2023-11-28 20:35:35,447 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -2 predicate places. [2023-11-28 20:35:35,447 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 237 transitions, 506 flow [2023-11-28 20:35:35,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:35,449 INFO L208 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] [2023-11-28 20:35:35,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:35:35,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:35,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:35,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1012242707, now seen corresponding path program 1 times [2023-11-28 20:35:35,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129673899] [2023-11-28 20:35:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:35,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:35,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:35,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129673899] [2023-11-28 20:35:35,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129673899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:35,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:35,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:35:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544763328] [2023-11-28 20:35:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:35,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:35:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:35,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:35:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:35:35,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 244 [2023-11-28 20:35:35,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 237 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:35,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 244 [2023-11-28 20:35:35,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:35,614 INFO L124 PetriNetUnfolderBase]: 16/376 cut-off events. [2023-11-28 20:35:35,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:35,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 376 events. 16/376 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 783 event pairs, 16 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 296. Up to 47 conditions per place. [2023-11-28 20:35:35,617 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 14 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2023-11-28 20:35:35,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 236 transitions, 536 flow [2023-11-28 20:35:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:35:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:35:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-28 20:35:35,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.953551912568306 [2023-11-28 20:35:35,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-28 20:35:35,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-28 20:35:35,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:35,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-28 20:35:35,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,626 INFO L175 Difference]: Start difference. First operand has 245 places, 237 transitions, 506 flow. Second operand 3 states and 698 transitions. [2023-11-28 20:35:35,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 236 transitions, 536 flow [2023-11-28 20:35:35,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 236 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:35:35,631 INFO L231 Difference]: Finished difference. Result has 241 places, 236 transitions, 478 flow [2023-11-28 20:35:35,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=241, PETRI_TRANSITIONS=236} [2023-11-28 20:35:35,633 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -6 predicate places. [2023-11-28 20:35:35,633 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 236 transitions, 478 flow [2023-11-28 20:35:35,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:35,634 INFO L208 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] [2023-11-28 20:35:35,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:35:35,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:35,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:35,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2005674951, now seen corresponding path program 1 times [2023-11-28 20:35:35,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:35,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056177122] [2023-11-28 20:35:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:35,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:35,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:35,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056177122] [2023-11-28 20:35:35,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056177122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:35,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:35,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:35:35,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258361318] [2023-11-28 20:35:35,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:35,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:35:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:35,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:35:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:35:35,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 244 [2023-11-28 20:35:35,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 236 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:35,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 244 [2023-11-28 20:35:35,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:35,803 INFO L124 PetriNetUnfolderBase]: 24/451 cut-off events. [2023-11-28 20:35:35,803 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:35:35,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 451 events. 24/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1232 event pairs, 24 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 461. Up to 63 conditions per place. [2023-11-28 20:35:35,806 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 15 selfloop transitions, 1 changer transitions 0/231 dead transitions. [2023-11-28 20:35:35,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 231 transitions, 500 flow [2023-11-28 20:35:35,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:35:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:35:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 690 transitions. [2023-11-28 20:35:35,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-28 20:35:35,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 690 transitions. [2023-11-28 20:35:35,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 690 transitions. [2023-11-28 20:35:35,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:35,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 690 transitions. [2023-11-28 20:35:35,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,817 INFO L175 Difference]: Start difference. First operand has 241 places, 236 transitions, 478 flow. Second operand 3 states and 690 transitions. [2023-11-28 20:35:35,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 231 transitions, 500 flow [2023-11-28 20:35:35,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 231 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:35:35,824 INFO L231 Difference]: Finished difference. Result has 236 places, 231 transitions, 466 flow [2023-11-28 20:35:35,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=236, PETRI_TRANSITIONS=231} [2023-11-28 20:35:35,825 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -11 predicate places. [2023-11-28 20:35:35,826 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 231 transitions, 466 flow [2023-11-28 20:35:35,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:35,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:35,827 INFO L208 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] [2023-11-28 20:35:35,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:35:35,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:35,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:35,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1703256098, now seen corresponding path program 1 times [2023-11-28 20:35:35,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:35,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997189095] [2023-11-28 20:35:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:35,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:36,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:36,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997189095] [2023-11-28 20:35:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997189095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:36,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:36,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446250051] [2023-11-28 20:35:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:36,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:36,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:36,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 244 [2023-11-28 20:35:36,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 231 transitions, 466 flow. Second operand has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:36,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:36,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 244 [2023-11-28 20:35:36,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:37,082 INFO L124 PetriNetUnfolderBase]: 288/1207 cut-off events. [2023-11-28 20:35:37,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:37,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 1207 events. 288/1207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6475 event pairs, 288 based on Foata normal form. 0/1146 useless extension candidates. Maximal degree in co-relation 1789. Up to 643 conditions per place. [2023-11-28 20:35:37,090 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 66 selfloop transitions, 5 changer transitions 0/230 dead transitions. [2023-11-28 20:35:37,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 230 transitions, 606 flow [2023-11-28 20:35:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2023-11-28 20:35:37,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7540983606557377 [2023-11-28 20:35:37,095 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2023-11-28 20:35:37,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2023-11-28 20:35:37,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:37,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2023-11-28 20:35:37,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,105 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,105 INFO L175 Difference]: Start difference. First operand has 236 places, 231 transitions, 466 flow. Second operand 6 states and 1104 transitions. [2023-11-28 20:35:37,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 230 transitions, 606 flow [2023-11-28 20:35:37,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 230 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:35:37,112 INFO L231 Difference]: Finished difference. Result has 239 places, 230 transitions, 473 flow [2023-11-28 20:35:37,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=239, PETRI_TRANSITIONS=230} [2023-11-28 20:35:37,113 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -8 predicate places. [2023-11-28 20:35:37,113 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 230 transitions, 473 flow [2023-11-28 20:35:37,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:37,114 INFO L208 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] [2023-11-28 20:35:37,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:35:37,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:37,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash 718099715, now seen corresponding path program 1 times [2023-11-28 20:35:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:37,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481598406] [2023-11-28 20:35:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:37,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:37,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:37,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:37,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481598406] [2023-11-28 20:35:37,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481598406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:37,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:35:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773022820] [2023-11-28 20:35:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:37,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:35:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:37,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:35:37,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:35:37,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 244 [2023-11-28 20:35:37,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 230 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:37,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 244 [2023-11-28 20:35:37,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:37,268 INFO L124 PetriNetUnfolderBase]: 6/295 cut-off events. [2023-11-28 20:35:37,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:37,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 295 events. 6/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 400 event pairs, 6 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 269. Up to 23 conditions per place. [2023-11-28 20:35:37,270 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 10 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2023-11-28 20:35:37,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 229 transitions, 495 flow [2023-11-28 20:35:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:35:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:35:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2023-11-28 20:35:37,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9644808743169399 [2023-11-28 20:35:37,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2023-11-28 20:35:37,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2023-11-28 20:35:37,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:37,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2023-11-28 20:35:37,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,279 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,279 INFO L175 Difference]: Start difference. First operand has 239 places, 230 transitions, 473 flow. Second operand 3 states and 706 transitions. [2023-11-28 20:35:37,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 229 transitions, 495 flow [2023-11-28 20:35:37,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 229 transitions, 485 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:35:37,285 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 465 flow [2023-11-28 20:35:37,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2023-11-28 20:35:37,286 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -12 predicate places. [2023-11-28 20:35:37,286 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 465 flow [2023-11-28 20:35:37,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:37,287 INFO L208 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] [2023-11-28 20:35:37,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:35:37,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:37,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1428895703, now seen corresponding path program 1 times [2023-11-28 20:35:37,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:37,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467855766] [2023-11-28 20:35:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:37,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:37,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:37,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467855766] [2023-11-28 20:35:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467855766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:37,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:37,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:35:37,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565630065] [2023-11-28 20:35:37,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:37,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:35:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:37,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:35:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:35:37,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 244 [2023-11-28 20:35:37,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:37,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 244 [2023-11-28 20:35:37,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:37,419 INFO L124 PetriNetUnfolderBase]: 4/292 cut-off events. [2023-11-28 20:35:37,420 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:35:37,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 292 events. 4/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 262 event pairs, 4 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 256. Up to 15 conditions per place. [2023-11-28 20:35:37,421 INFO L140 encePairwiseOnDemand]: 242/244 looper letters, 7 selfloop transitions, 1 changer transitions 0/228 dead transitions. [2023-11-28 20:35:37,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 228 transitions, 479 flow [2023-11-28 20:35:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:35:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:35:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2023-11-28 20:35:37,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9754098360655737 [2023-11-28 20:35:37,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2023-11-28 20:35:37,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2023-11-28 20:35:37,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:37,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2023-11-28 20:35:37,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,430 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 465 flow. Second operand 3 states and 714 transitions. [2023-11-28 20:35:37,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 228 transitions, 479 flow [2023-11-28 20:35:37,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 228 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:35:37,436 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 461 flow [2023-11-28 20:35:37,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=461, PETRI_PLACES=234, PETRI_TRANSITIONS=228} [2023-11-28 20:35:37,437 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -13 predicate places. [2023-11-28 20:35:37,437 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 461 flow [2023-11-28 20:35:37,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:37,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:37,438 INFO L208 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] [2023-11-28 20:35:37,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:35:37,438 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:37,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1479849926, now seen corresponding path program 1 times [2023-11-28 20:35:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935327189] [2023-11-28 20:35:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:37,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:37,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:37,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935327189] [2023-11-28 20:35:37,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935327189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:37,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:37,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922804111] [2023-11-28 20:35:37,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:37,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:37,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:37,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:37,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:38,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 244 [2023-11-28 20:35:38,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 228 transitions, 461 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:38,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:38,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 244 [2023-11-28 20:35:38,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:38,790 INFO L124 PetriNetUnfolderBase]: 316/1542 cut-off events. [2023-11-28 20:35:38,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:38,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 1542 events. 316/1542 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9357 event pairs, 32 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 2212. Up to 388 conditions per place. [2023-11-28 20:35:38,798 INFO L140 encePairwiseOnDemand]: 216/244 looper letters, 107 selfloop transitions, 70 changer transitions 0/340 dead transitions. [2023-11-28 20:35:38,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 340 transitions, 1039 flow [2023-11-28 20:35:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1253 transitions. [2023-11-28 20:35:38,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8558743169398907 [2023-11-28 20:35:38,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1253 transitions. [2023-11-28 20:35:38,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1253 transitions. [2023-11-28 20:35:38,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:38,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1253 transitions. [2023-11-28 20:35:38,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:38,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:38,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:38,809 INFO L175 Difference]: Start difference. First operand has 234 places, 228 transitions, 461 flow. Second operand 6 states and 1253 transitions. [2023-11-28 20:35:38,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 340 transitions, 1039 flow [2023-11-28 20:35:38,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 340 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:35:38,815 INFO L231 Difference]: Finished difference. Result has 242 places, 298 transitions, 938 flow [2023-11-28 20:35:38,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=242, PETRI_TRANSITIONS=298} [2023-11-28 20:35:38,816 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -5 predicate places. [2023-11-28 20:35:38,816 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 298 transitions, 938 flow [2023-11-28 20:35:38,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:38,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:38,817 INFO L208 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] [2023-11-28 20:35:38,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 20:35:38,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:38,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1600637177, now seen corresponding path program 1 times [2023-11-28 20:35:38,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976572457] [2023-11-28 20:35:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976572457] [2023-11-28 20:35:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976572457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:39,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:39,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:39,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337367830] [2023-11-28 20:35:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:39,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:39,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:39,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:39,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 244 [2023-11-28 20:35:39,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 298 transitions, 938 flow. Second operand has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:39,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:39,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 244 [2023-11-28 20:35:39,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:40,294 INFO L124 PetriNetUnfolderBase]: 588/2330 cut-off events. [2023-11-28 20:35:40,294 INFO L125 PetriNetUnfolderBase]: For 609/615 co-relation queries the response was YES. [2023-11-28 20:35:40,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4728 conditions, 2330 events. 588/2330 cut-off events. For 609/615 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15507 event pairs, 222 based on Foata normal form. 0/2221 useless extension candidates. Maximal degree in co-relation 4656. Up to 1090 conditions per place. [2023-11-28 20:35:40,337 INFO L140 encePairwiseOnDemand]: 229/244 looper letters, 114 selfloop transitions, 48 changer transitions 0/349 dead transitions. [2023-11-28 20:35:40,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 349 transitions, 1434 flow [2023-11-28 20:35:40,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2023-11-28 20:35:40,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8128415300546448 [2023-11-28 20:35:40,342 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2023-11-28 20:35:40,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2023-11-28 20:35:40,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:40,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2023-11-28 20:35:40,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:40,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:40,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:40,351 INFO L175 Difference]: Start difference. First operand has 242 places, 298 transitions, 938 flow. Second operand 6 states and 1190 transitions. [2023-11-28 20:35:40,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 349 transitions, 1434 flow [2023-11-28 20:35:40,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 349 transitions, 1434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:35:40,365 INFO L231 Difference]: Finished difference. Result has 252 places, 341 transitions, 1326 flow [2023-11-28 20:35:40,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1326, PETRI_PLACES=252, PETRI_TRANSITIONS=341} [2023-11-28 20:35:40,367 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 5 predicate places. [2023-11-28 20:35:40,367 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 341 transitions, 1326 flow [2023-11-28 20:35:40,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:40,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:40,368 INFO L208 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] [2023-11-28 20:35:40,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 20:35:40,368 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:40,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1634965321, now seen corresponding path program 1 times [2023-11-28 20:35:40,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:40,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560232601] [2023-11-28 20:35:40,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:40,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:40,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:40,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560232601] [2023-11-28 20:35:40,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560232601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:40,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:40,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:40,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019376526] [2023-11-28 20:35:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:40,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:40,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:40,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:40,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:41,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 244 [2023-11-28 20:35:41,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 341 transitions, 1326 flow. Second operand has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:41,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:41,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 244 [2023-11-28 20:35:41,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:41,963 INFO L124 PetriNetUnfolderBase]: 754/2875 cut-off events. [2023-11-28 20:35:41,963 INFO L125 PetriNetUnfolderBase]: For 1630/1686 co-relation queries the response was YES. [2023-11-28 20:35:41,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6642 conditions, 2875 events. 754/2875 cut-off events. For 1630/1686 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 20297 event pairs, 86 based on Foata normal form. 0/2779 useless extension candidates. Maximal degree in co-relation 6563. Up to 1017 conditions per place. [2023-11-28 20:35:41,981 INFO L140 encePairwiseOnDemand]: 221/244 looper letters, 136 selfloop transitions, 136 changer transitions 4/481 dead transitions. [2023-11-28 20:35:41,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 481 transitions, 2634 flow [2023-11-28 20:35:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:41,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1248 transitions. [2023-11-28 20:35:41,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8524590163934426 [2023-11-28 20:35:41,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1248 transitions. [2023-11-28 20:35:41,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1248 transitions. [2023-11-28 20:35:41,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:41,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1248 transitions. [2023-11-28 20:35:41,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:41,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:41,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:41,996 INFO L175 Difference]: Start difference. First operand has 252 places, 341 transitions, 1326 flow. Second operand 6 states and 1248 transitions. [2023-11-28 20:35:41,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 481 transitions, 2634 flow [2023-11-28 20:35:42,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 481 transitions, 2616 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-28 20:35:42,015 INFO L231 Difference]: Finished difference. Result has 262 places, 472 transitions, 2674 flow [2023-11-28 20:35:42,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2674, PETRI_PLACES=262, PETRI_TRANSITIONS=472} [2023-11-28 20:35:42,017 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 15 predicate places. [2023-11-28 20:35:42,017 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 472 transitions, 2674 flow [2023-11-28 20:35:42,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:42,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:42,018 INFO L208 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] [2023-11-28 20:35:42,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 20:35:42,018 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:42,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1276534900, now seen corresponding path program 1 times [2023-11-28 20:35:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233968392] [2023-11-28 20:35:42,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:42,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:42,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:42,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233968392] [2023-11-28 20:35:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233968392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:42,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:42,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:35:42,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031083729] [2023-11-28 20:35:42,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:42,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:35:42,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:42,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 244 [2023-11-28 20:35:42,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 472 transitions, 2674 flow. Second operand has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:42,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:42,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 244 [2023-11-28 20:35:42,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:43,641 INFO L124 PetriNetUnfolderBase]: 968/3455 cut-off events. [2023-11-28 20:35:43,641 INFO L125 PetriNetUnfolderBase]: For 3841/3912 co-relation queries the response was YES. [2023-11-28 20:35:43,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9696 conditions, 3455 events. 968/3455 cut-off events. For 3841/3912 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 25090 event pairs, 207 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 9614. Up to 1565 conditions per place. [2023-11-28 20:35:43,673 INFO L140 encePairwiseOnDemand]: 229/244 looper letters, 239 selfloop transitions, 62 changer transitions 0/529 dead transitions. [2023-11-28 20:35:43,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 529 transitions, 3618 flow [2023-11-28 20:35:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:35:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2023-11-28 20:35:43,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8128415300546448 [2023-11-28 20:35:43,678 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2023-11-28 20:35:43,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2023-11-28 20:35:43,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:43,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2023-11-28 20:35:43,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,687 INFO L175 Difference]: Start difference. First operand has 262 places, 472 transitions, 2674 flow. Second operand 6 states and 1190 transitions. [2023-11-28 20:35:43,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 529 transitions, 3618 flow [2023-11-28 20:35:43,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 529 transitions, 3582 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-11-28 20:35:43,723 INFO L231 Difference]: Finished difference. Result has 272 places, 521 transitions, 3264 flow [2023-11-28 20:35:43,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3264, PETRI_PLACES=272, PETRI_TRANSITIONS=521} [2023-11-28 20:35:43,724 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 25 predicate places. [2023-11-28 20:35:43,725 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 521 transitions, 3264 flow [2023-11-28 20:35:43,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:43,725 INFO L208 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] [2023-11-28 20:35:43,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 20:35:43,726 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:43,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:43,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1859311886, now seen corresponding path program 1 times [2023-11-28 20:35:43,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:43,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960889299] [2023-11-28 20:35:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:43,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:44,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:44,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960889299] [2023-11-28 20:35:44,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960889299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:44,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:35:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881279728] [2023-11-28 20:35:44,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:44,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:35:44,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:44,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:35:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:35:46,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:35:46,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 521 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:46,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:46,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:35:46,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:49,003 INFO L124 PetriNetUnfolderBase]: 1622/5490 cut-off events. [2023-11-28 20:35:49,003 INFO L125 PetriNetUnfolderBase]: For 9653/9728 co-relation queries the response was YES. [2023-11-28 20:35:49,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17170 conditions, 5490 events. 1622/5490 cut-off events. For 9653/9728 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 45324 event pairs, 96 based on Foata normal form. 48/5457 useless extension candidates. Maximal degree in co-relation 17078. Up to 1060 conditions per place. [2023-11-28 20:35:49,042 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 553 selfloop transitions, 237 changer transitions 4/990 dead transitions. [2023-11-28 20:35:49,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 990 transitions, 8566 flow [2023-11-28 20:35:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 20:35:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-28 20:35:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4805 transitions. [2023-11-28 20:35:49,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7293564055859137 [2023-11-28 20:35:49,055 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4805 transitions. [2023-11-28 20:35:49,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4805 transitions. [2023-11-28 20:35:49,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:49,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4805 transitions. [2023-11-28 20:35:49,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 177.96296296296296) internal successors, (4805), 27 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:49,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:49,088 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:49,088 INFO L175 Difference]: Start difference. First operand has 272 places, 521 transitions, 3264 flow. Second operand 27 states and 4805 transitions. [2023-11-28 20:35:49,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 990 transitions, 8566 flow [2023-11-28 20:35:49,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 990 transitions, 8412 flow, removed 77 selfloop flow, removed 0 redundant places. [2023-11-28 20:35:49,236 INFO L231 Difference]: Finished difference. Result has 311 places, 706 transitions, 5759 flow [2023-11-28 20:35:49,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5759, PETRI_PLACES=311, PETRI_TRANSITIONS=706} [2023-11-28 20:35:49,238 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 64 predicate places. [2023-11-28 20:35:49,238 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 706 transitions, 5759 flow [2023-11-28 20:35:49,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:49,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:49,240 INFO L208 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] [2023-11-28 20:35:49,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 20:35:49,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:49,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash -820008796, now seen corresponding path program 2 times [2023-11-28 20:35:49,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:49,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332547924] [2023-11-28 20:35:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:49,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:50,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332547924] [2023-11-28 20:35:50,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332547924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:50,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:50,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:35:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137374155] [2023-11-28 20:35:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:50,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:35:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:35:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:35:51,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:35:51,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 706 transitions, 5759 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:51,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:51,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:35:51,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:54,149 INFO L124 PetriNetUnfolderBase]: 2344/7987 cut-off events. [2023-11-28 20:35:54,149 INFO L125 PetriNetUnfolderBase]: For 20367/20572 co-relation queries the response was YES. [2023-11-28 20:35:54,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 7987 events. 2344/7987 cut-off events. For 20367/20572 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 74351 event pairs, 182 based on Foata normal form. 112/7984 useless extension candidates. Maximal degree in co-relation 27305. Up to 1535 conditions per place. [2023-11-28 20:35:54,201 INFO L140 encePairwiseOnDemand]: 205/244 looper letters, 553 selfloop transitions, 350 changer transitions 6/1105 dead transitions. [2023-11-28 20:35:54,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1105 transitions, 11007 flow [2023-11-28 20:35:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 20:35:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-28 20:35:54,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3670 transitions. [2023-11-28 20:35:54,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7520491803278688 [2023-11-28 20:35:54,214 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3670 transitions. [2023-11-28 20:35:54,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3670 transitions. [2023-11-28 20:35:54,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:54,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3670 transitions. [2023-11-28 20:35:54,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 183.5) internal successors, (3670), 20 states have internal predecessors, (3670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:54,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 244.0) internal successors, (5124), 21 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:54,237 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 244.0) internal successors, (5124), 21 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:54,237 INFO L175 Difference]: Start difference. First operand has 311 places, 706 transitions, 5759 flow. Second operand 20 states and 3670 transitions. [2023-11-28 20:35:54,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1105 transitions, 11007 flow [2023-11-28 20:35:54,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1105 transitions, 10939 flow, removed 32 selfloop flow, removed 2 redundant places. [2023-11-28 20:35:54,421 INFO L231 Difference]: Finished difference. Result has 345 places, 841 transitions, 8826 flow [2023-11-28 20:35:54,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=5709, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8826, PETRI_PLACES=345, PETRI_TRANSITIONS=841} [2023-11-28 20:35:54,423 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 98 predicate places. [2023-11-28 20:35:54,423 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 841 transitions, 8826 flow [2023-11-28 20:35:54,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:54,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:54,424 INFO L208 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] [2023-11-28 20:35:54,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 20:35:54,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:54,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash -952803214, now seen corresponding path program 3 times [2023-11-28 20:35:54,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:54,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408754377] [2023-11-28 20:35:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:55,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:55,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408754377] [2023-11-28 20:35:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408754377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:55,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:55,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:35:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204926842] [2023-11-28 20:35:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:55,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:35:55,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:55,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:35:55,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:35:56,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:35:56,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 841 transitions, 8826 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:56,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:56,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:35:56,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:35:59,260 INFO L124 PetriNetUnfolderBase]: 2414/8121 cut-off events. [2023-11-28 20:35:59,260 INFO L125 PetriNetUnfolderBase]: For 32382/32684 co-relation queries the response was YES. [2023-11-28 20:35:59,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30978 conditions, 8121 events. 2414/8121 cut-off events. For 32382/32684 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 75466 event pairs, 134 based on Foata normal form. 162/8176 useless extension candidates. Maximal degree in co-relation 30895. Up to 1559 conditions per place. [2023-11-28 20:35:59,331 INFO L140 encePairwiseOnDemand]: 217/244 looper letters, 671 selfloop transitions, 240 changer transitions 4/1111 dead transitions. [2023-11-28 20:35:59,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1111 transitions, 13106 flow [2023-11-28 20:35:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 20:35:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-28 20:35:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4588 transitions. [2023-11-28 20:35:59,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.723203026481715 [2023-11-28 20:35:59,338 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4588 transitions. [2023-11-28 20:35:59,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4588 transitions. [2023-11-28 20:35:59,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:59,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4588 transitions. [2023-11-28 20:35:59,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 176.46153846153845) internal successors, (4588), 26 states have internal predecessors, (4588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:59,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 244.0) internal successors, (6588), 27 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:59,358 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 244.0) internal successors, (6588), 27 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:59,358 INFO L175 Difference]: Start difference. First operand has 345 places, 841 transitions, 8826 flow. Second operand 26 states and 4588 transitions. [2023-11-28 20:35:59,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1111 transitions, 13106 flow [2023-11-28 20:35:59,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1111 transitions, 13046 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-11-28 20:35:59,658 INFO L231 Difference]: Finished difference. Result has 377 places, 906 transitions, 10319 flow [2023-11-28 20:35:59,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=8774, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10319, PETRI_PLACES=377, PETRI_TRANSITIONS=906} [2023-11-28 20:35:59,659 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 130 predicate places. [2023-11-28 20:35:59,659 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 906 transitions, 10319 flow [2023-11-28 20:35:59,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:59,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:59,660 INFO L208 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] [2023-11-28 20:35:59,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 20:35:59,660 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:35:59,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1824607934, now seen corresponding path program 4 times [2023-11-28 20:35:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683716518] [2023-11-28 20:35:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:00,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:00,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:00,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683716518] [2023-11-28 20:36:00,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683716518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:00,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:00,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:00,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500735115] [2023-11-28 20:36:00,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:00,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:00,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:00,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:00,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:01,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:36:01,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 906 transitions, 10319 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:01,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:01,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:36:01,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:05,817 INFO L124 PetriNetUnfolderBase]: 3162/10574 cut-off events. [2023-11-28 20:36:05,817 INFO L125 PetriNetUnfolderBase]: For 51200/51668 co-relation queries the response was YES. [2023-11-28 20:36:05,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42561 conditions, 10574 events. 3162/10574 cut-off events. For 51200/51668 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 105590 event pairs, 197 based on Foata normal form. 290/10725 useless extension candidates. Maximal degree in co-relation 42453. Up to 2039 conditions per place. [2023-11-28 20:36:05,924 INFO L140 encePairwiseOnDemand]: 205/244 looper letters, 673 selfloop transitions, 424 changer transitions 6/1299 dead transitions. [2023-11-28 20:36:05,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1299 transitions, 16741 flow [2023-11-28 20:36:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:36:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:36:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3841 transitions. [2023-11-28 20:36:05,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7496096799375488 [2023-11-28 20:36:05,932 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3841 transitions. [2023-11-28 20:36:05,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3841 transitions. [2023-11-28 20:36:05,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:05,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3841 transitions. [2023-11-28 20:36:05,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 182.9047619047619) internal successors, (3841), 21 states have internal predecessors, (3841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:05,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:05,947 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:05,947 INFO L175 Difference]: Start difference. First operand has 377 places, 906 transitions, 10319 flow. Second operand 21 states and 3841 transitions. [2023-11-28 20:36:05,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1299 transitions, 16741 flow [2023-11-28 20:36:06,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1299 transitions, 16395 flow, removed 98 selfloop flow, removed 12 redundant places. [2023-11-28 20:36:06,256 INFO L231 Difference]: Finished difference. Result has 402 places, 1036 transitions, 14007 flow [2023-11-28 20:36:06,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=10120, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14007, PETRI_PLACES=402, PETRI_TRANSITIONS=1036} [2023-11-28 20:36:06,257 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 155 predicate places. [2023-11-28 20:36:06,257 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 1036 transitions, 14007 flow [2023-11-28 20:36:06,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:06,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:06,258 INFO L208 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] [2023-11-28 20:36:06,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 20:36:06,258 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:36:06,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:06,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1910099152, now seen corresponding path program 1 times [2023-11-28 20:36:06,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:06,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717736051] [2023-11-28 20:36:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:06,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:07,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:07,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717736051] [2023-11-28 20:36:07,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717736051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:07,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:07,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:07,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692045076] [2023-11-28 20:36:07,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:07,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:07,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:08,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 244 [2023-11-28 20:36:08,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1036 transitions, 14007 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:08,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:08,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 244 [2023-11-28 20:36:08,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:12,758 INFO L124 PetriNetUnfolderBase]: 3515/11292 cut-off events. [2023-11-28 20:36:12,758 INFO L125 PetriNetUnfolderBase]: For 63347/63802 co-relation queries the response was YES. [2023-11-28 20:36:12,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47818 conditions, 11292 events. 3515/11292 cut-off events. For 63347/63802 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 112168 event pairs, 434 based on Foata normal form. 87/11241 useless extension candidates. Maximal degree in co-relation 47689. Up to 2423 conditions per place. [2023-11-28 20:36:12,872 INFO L140 encePairwiseOnDemand]: 223/244 looper letters, 529 selfloop transitions, 211 changer transitions 0/1165 dead transitions. [2023-11-28 20:36:12,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 1165 transitions, 16973 flow [2023-11-28 20:36:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 20:36:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-28 20:36:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2377 transitions. [2023-11-28 20:36:12,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7493694829760403 [2023-11-28 20:36:12,877 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2377 transitions. [2023-11-28 20:36:12,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2377 transitions. [2023-11-28 20:36:12,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:12,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2377 transitions. [2023-11-28 20:36:12,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 182.84615384615384) internal successors, (2377), 13 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 244.0) internal successors, (3416), 14 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,889 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 244.0) internal successors, (3416), 14 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,889 INFO L175 Difference]: Start difference. First operand has 402 places, 1036 transitions, 14007 flow. Second operand 13 states and 2377 transitions. [2023-11-28 20:36:12,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 1165 transitions, 16973 flow [2023-11-28 20:36:13,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 1165 transitions, 16891 flow, removed 39 selfloop flow, removed 2 redundant places. [2023-11-28 20:36:13,415 INFO L231 Difference]: Finished difference. Result has 417 places, 1045 transitions, 14714 flow [2023-11-28 20:36:13,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=13933, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14714, PETRI_PLACES=417, PETRI_TRANSITIONS=1045} [2023-11-28 20:36:13,416 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 170 predicate places. [2023-11-28 20:36:13,416 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 1045 transitions, 14714 flow [2023-11-28 20:36:13,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:13,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:13,417 INFO L208 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] [2023-11-28 20:36:13,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 20:36:13,417 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:36:13,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash -722569940, now seen corresponding path program 5 times [2023-11-28 20:36:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380085122] [2023-11-28 20:36:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:14,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:14,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380085122] [2023-11-28 20:36:14,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380085122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:14,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713024649] [2023-11-28 20:36:14,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:14,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:14,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:15,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:36:15,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 1045 transitions, 14714 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:15,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:15,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:36:15,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:21,508 INFO L124 PetriNetUnfolderBase]: 4521/15213 cut-off events. [2023-11-28 20:36:21,509 INFO L125 PetriNetUnfolderBase]: For 104390/105171 co-relation queries the response was YES. [2023-11-28 20:36:21,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67427 conditions, 15213 events. 4521/15213 cut-off events. For 104390/105171 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 166755 event pairs, 297 based on Foata normal form. 366/15380 useless extension candidates. Maximal degree in co-relation 67297. Up to 2936 conditions per place. [2023-11-28 20:36:21,672 INFO L140 encePairwiseOnDemand]: 207/244 looper letters, 656 selfloop transitions, 658 changer transitions 5/1521 dead transitions. [2023-11-28 20:36:21,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1521 transitions, 23879 flow [2023-11-28 20:36:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:36:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:36:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3809 transitions. [2023-11-28 20:36:21,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7433645589383294 [2023-11-28 20:36:21,678 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3809 transitions. [2023-11-28 20:36:21,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3809 transitions. [2023-11-28 20:36:21,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:21,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3809 transitions. [2023-11-28 20:36:21,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 181.38095238095238) internal successors, (3809), 21 states have internal predecessors, (3809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:21,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:21,688 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:21,688 INFO L175 Difference]: Start difference. First operand has 417 places, 1045 transitions, 14714 flow. Second operand 21 states and 3809 transitions. [2023-11-28 20:36:21,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1521 transitions, 23879 flow [2023-11-28 20:36:22,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 1521 transitions, 23593 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-28 20:36:22,729 INFO L231 Difference]: Finished difference. Result has 446 places, 1271 transitions, 21676 flow [2023-11-28 20:36:22,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=14557, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21676, PETRI_PLACES=446, PETRI_TRANSITIONS=1271} [2023-11-28 20:36:22,730 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 199 predicate places. [2023-11-28 20:36:22,731 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 1271 transitions, 21676 flow [2023-11-28 20:36:22,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:22,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:22,731 INFO L208 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] [2023-11-28 20:36:22,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 20:36:22,732 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:36:22,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1713686956, now seen corresponding path program 6 times [2023-11-28 20:36:22,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:22,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248429368] [2023-11-28 20:36:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248429368] [2023-11-28 20:36:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248429368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901109650] [2023-11-28 20:36:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:23,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:23,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:23,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:23,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:24,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:36:24,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 1271 transitions, 21676 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:24,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:24,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:36:24,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:32,526 INFO L124 PetriNetUnfolderBase]: 4989/16580 cut-off events. [2023-11-28 20:36:32,526 INFO L125 PetriNetUnfolderBase]: For 154284/155061 co-relation queries the response was YES. [2023-11-28 20:36:32,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78770 conditions, 16580 events. 4989/16580 cut-off events. For 154284/155061 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 184315 event pairs, 321 based on Foata normal form. 404/16769 useless extension candidates. Maximal degree in co-relation 78619. Up to 3242 conditions per place. [2023-11-28 20:36:32,720 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 796 selfloop transitions, 699 changer transitions 4/1701 dead transitions. [2023-11-28 20:36:32,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1701 transitions, 30743 flow [2023-11-28 20:36:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 20:36:32,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-28 20:36:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4804 transitions. [2023-11-28 20:36:32,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292046144505161 [2023-11-28 20:36:32,724 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4804 transitions. [2023-11-28 20:36:32,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4804 transitions. [2023-11-28 20:36:32,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:32,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4804 transitions. [2023-11-28 20:36:32,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 177.92592592592592) internal successors, (4804), 27 states have internal predecessors, (4804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:32,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:32,738 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:32,738 INFO L175 Difference]: Start difference. First operand has 446 places, 1271 transitions, 21676 flow. Second operand 27 states and 4804 transitions. [2023-11-28 20:36:32,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1701 transitions, 30743 flow [2023-11-28 20:36:34,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1701 transitions, 30641 flow, removed 49 selfloop flow, removed 2 redundant places. [2023-11-28 20:36:34,468 INFO L231 Difference]: Finished difference. Result has 482 places, 1398 transitions, 27094 flow [2023-11-28 20:36:34,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=21592, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=574, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=27094, PETRI_PLACES=482, PETRI_TRANSITIONS=1398} [2023-11-28 20:36:34,469 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 235 predicate places. [2023-11-28 20:36:34,469 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 1398 transitions, 27094 flow [2023-11-28 20:36:34,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:34,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:34,470 INFO L208 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] [2023-11-28 20:36:34,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 20:36:34,470 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:36:34,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:34,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1605100698, now seen corresponding path program 7 times [2023-11-28 20:36:34,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:34,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480734739] [2023-11-28 20:36:34,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:34,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:35,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:35,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480734739] [2023-11-28 20:36:35,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480734739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:35,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:35,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:35,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455714419] [2023-11-28 20:36:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:35,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:35,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:35,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:35,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:36,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:36:36,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1398 transitions, 27094 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:36,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:36,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:36:36,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:46,306 INFO L124 PetriNetUnfolderBase]: 6516/21631 cut-off events. [2023-11-28 20:36:46,307 INFO L125 PetriNetUnfolderBase]: For 236602/237845 co-relation queries the response was YES. [2023-11-28 20:36:46,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106546 conditions, 21631 events. 6516/21631 cut-off events. For 236602/237845 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 255537 event pairs, 448 based on Foata normal form. 670/22029 useless extension candidates. Maximal degree in co-relation 106377. Up to 4239 conditions per place. [2023-11-28 20:36:46,605 INFO L140 encePairwiseOnDemand]: 205/244 looper letters, 777 selfloop transitions, 908 changer transitions 7/1894 dead transitions. [2023-11-28 20:36:46,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 1894 transitions, 38583 flow [2023-11-28 20:36:46,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:36:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 20:36:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5363 transitions. [2023-11-28 20:36:46,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7326502732240437 [2023-11-28 20:36:46,610 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 5363 transitions. [2023-11-28 20:36:46,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 5363 transitions. [2023-11-28 20:36:46,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:46,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 5363 transitions. [2023-11-28 20:36:46,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 178.76666666666668) internal successors, (5363), 30 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:46,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:46,623 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:46,623 INFO L175 Difference]: Start difference. First operand has 482 places, 1398 transitions, 27094 flow. Second operand 30 states and 5363 transitions. [2023-11-28 20:36:46,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 1894 transitions, 38583 flow [2023-11-28 20:36:49,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1894 transitions, 38220 flow, removed 67 selfloop flow, removed 13 redundant places. [2023-11-28 20:36:49,606 INFO L231 Difference]: Finished difference. Result has 516 places, 1600 transitions, 35665 flow [2023-11-28 20:36:49,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=26761, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=706, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=35665, PETRI_PLACES=516, PETRI_TRANSITIONS=1600} [2023-11-28 20:36:49,608 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 269 predicate places. [2023-11-28 20:36:49,608 INFO L495 AbstractCegarLoop]: Abstraction has has 516 places, 1600 transitions, 35665 flow [2023-11-28 20:36:49,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:49,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:49,609 INFO L208 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] [2023-11-28 20:36:49,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 20:36:49,609 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:36:49,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash -125473822, now seen corresponding path program 8 times [2023-11-28 20:36:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099582653] [2023-11-28 20:36:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:50,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:50,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099582653] [2023-11-28 20:36:50,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099582653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:50,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:50,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:36:50,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616266011] [2023-11-28 20:36:50,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:50,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:36:50,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:50,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:36:50,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:36:51,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:36:51,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 1600 transitions, 35665 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:51,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:51,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:36:51,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:04,362 INFO L124 PetriNetUnfolderBase]: 6901/23027 cut-off events. [2023-11-28 20:37:04,362 INFO L125 PetriNetUnfolderBase]: For 318843/320421 co-relation queries the response was YES. [2023-11-28 20:37:04,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119219 conditions, 23027 events. 6901/23027 cut-off events. For 318843/320421 co-relation queries the response was YES. Maximal size of possible extension queue 815. Compared 276247 event pairs, 424 based on Foata normal form. 971/23675 useless extension candidates. Maximal degree in co-relation 119032. Up to 4501 conditions per place. [2023-11-28 20:37:04,707 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 789 selfloop transitions, 983 changer transitions 4/1978 dead transitions. [2023-11-28 20:37:04,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1978 transitions, 45213 flow [2023-11-28 20:37:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 20:37:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-28 20:37:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4802 transitions. [2023-11-28 20:37:04,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7289010321797207 [2023-11-28 20:37:04,711 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4802 transitions. [2023-11-28 20:37:04,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4802 transitions. [2023-11-28 20:37:04,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:04,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4802 transitions. [2023-11-28 20:37:04,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 177.85185185185185) internal successors, (4802), 27 states have internal predecessors, (4802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,723 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,723 INFO L175 Difference]: Start difference. First operand has 516 places, 1600 transitions, 35665 flow. Second operand 27 states and 4802 transitions. [2023-11-28 20:37:04,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1978 transitions, 45213 flow [2023-11-28 20:37:09,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 1978 transitions, 44979 flow, removed 80 selfloop flow, removed 10 redundant places. [2023-11-28 20:37:09,553 INFO L231 Difference]: Finished difference. Result has 543 places, 1709 transitions, 42052 flow [2023-11-28 20:37:09,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=35473, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=876, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=42052, PETRI_PLACES=543, PETRI_TRANSITIONS=1709} [2023-11-28 20:37:09,555 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 296 predicate places. [2023-11-28 20:37:09,555 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 1709 transitions, 42052 flow [2023-11-28 20:37:09,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:09,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:09,555 INFO L208 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] [2023-11-28 20:37:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 20:37:09,555 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:37:09,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash -254113388, now seen corresponding path program 9 times [2023-11-28 20:37:09,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:09,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472417752] [2023-11-28 20:37:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:10,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:10,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472417752] [2023-11-28 20:37:10,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472417752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:10,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:10,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:37:10,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862898804] [2023-11-28 20:37:10,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:10,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:37:10,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:10,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:37:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:37:11,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:37:11,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 1709 transitions, 42052 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:11,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:11,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:37:11,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:27,511 INFO L124 PetriNetUnfolderBase]: 7602/25302 cut-off events. [2023-11-28 20:37:27,511 INFO L125 PetriNetUnfolderBase]: For 417697/419508 co-relation queries the response was YES. [2023-11-28 20:37:27,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137173 conditions, 25302 events. 7602/25302 cut-off events. For 417697/419508 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 309225 event pairs, 432 based on Foata normal form. 1141/26147 useless extension candidates. Maximal degree in co-relation 136975. Up to 4962 conditions per place. [2023-11-28 20:37:27,965 INFO L140 encePairwiseOnDemand]: 205/244 looper letters, 902 selfloop transitions, 1034 changer transitions 7/2145 dead transitions. [2023-11-28 20:37:27,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 2145 transitions, 53532 flow [2023-11-28 20:37:27,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-28 20:37:27,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-28 20:37:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5709 transitions. [2023-11-28 20:37:27,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7311731557377049 [2023-11-28 20:37:27,974 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 5709 transitions. [2023-11-28 20:37:27,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 5709 transitions. [2023-11-28 20:37:27,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:27,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 5709 transitions. [2023-11-28 20:37:27,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 178.40625) internal successors, (5709), 32 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 244.0) internal successors, (8052), 33 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,994 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 244.0) internal successors, (8052), 33 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,994 INFO L175 Difference]: Start difference. First operand has 543 places, 1709 transitions, 42052 flow. Second operand 32 states and 5709 transitions. [2023-11-28 20:37:27,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 2145 transitions, 53532 flow [2023-11-28 20:37:33,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 2145 transitions, 53289 flow, removed 61 selfloop flow, removed 12 redundant places. [2023-11-28 20:37:33,954 INFO L231 Difference]: Finished difference. Result has 578 places, 1839 transitions, 50254 flow [2023-11-28 20:37:33,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=41839, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=906, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=50254, PETRI_PLACES=578, PETRI_TRANSITIONS=1839} [2023-11-28 20:37:33,956 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 331 predicate places. [2023-11-28 20:37:33,956 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 1839 transitions, 50254 flow [2023-11-28 20:37:33,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:33,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:33,957 INFO L208 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] [2023-11-28 20:37:33,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 20:37:33,957 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:37:33,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:33,957 INFO L85 PathProgramCache]: Analyzing trace with hash 633548416, now seen corresponding path program 10 times [2023-11-28 20:37:33,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:33,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939897204] [2023-11-28 20:37:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:34,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939897204] [2023-11-28 20:37:34,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939897204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:34,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:34,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:37:34,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865781868] [2023-11-28 20:37:34,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:34,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:37:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:37:34,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:37:36,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:37:36,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 1839 transitions, 50254 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:36,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:36,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:37:36,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:55,971 INFO L124 PetriNetUnfolderBase]: 8467/28031 cut-off events. [2023-11-28 20:37:55,971 INFO L125 PetriNetUnfolderBase]: For 562195/564262 co-relation queries the response was YES. [2023-11-28 20:37:56,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160612 conditions, 28031 events. 8467/28031 cut-off events. For 562195/564262 co-relation queries the response was YES. Maximal size of possible extension queue 1011. Compared 348074 event pairs, 483 based on Foata normal form. 1311/28989 useless extension candidates. Maximal degree in co-relation 160398. Up to 5491 conditions per place. [2023-11-28 20:37:56,693 INFO L140 encePairwiseOnDemand]: 208/244 looper letters, 1037 selfloop transitions, 1101 changer transitions 5/2345 dead transitions. [2023-11-28 20:37:56,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 2345 transitions, 64119 flow [2023-11-28 20:37:56,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-28 20:37:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-28 20:37:56,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4999 transitions. [2023-11-28 20:37:56,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7317037470725996 [2023-11-28 20:37:56,702 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4999 transitions. [2023-11-28 20:37:56,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4999 transitions. [2023-11-28 20:37:56,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:56,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4999 transitions. [2023-11-28 20:37:56,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 178.53571428571428) internal successors, (4999), 28 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:56,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:56,720 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:56,720 INFO L175 Difference]: Start difference. First operand has 578 places, 1839 transitions, 50254 flow. Second operand 28 states and 4999 transitions. [2023-11-28 20:37:56,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 2345 transitions, 64119 flow [2023-11-28 20:38:06,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 2345 transitions, 63840 flow, removed 76 selfloop flow, removed 15 redundant places. [2023-11-28 20:38:06,378 INFO L231 Difference]: Finished difference. Result has 604 places, 2003 transitions, 59831 flow [2023-11-28 20:38:06,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=49975, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1839, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=942, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=765, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=59831, PETRI_PLACES=604, PETRI_TRANSITIONS=2003} [2023-11-28 20:38:06,380 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 357 predicate places. [2023-11-28 20:38:06,380 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 2003 transitions, 59831 flow [2023-11-28 20:38:06,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:06,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:06,380 INFO L208 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] [2023-11-28 20:38:06,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 20:38:06,380 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:38:06,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:06,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1112524838, now seen corresponding path program 11 times [2023-11-28 20:38:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:06,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635233360] [2023-11-28 20:38:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:07,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635233360] [2023-11-28 20:38:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635233360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:07,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:38:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577017607] [2023-11-28 20:38:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:07,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:38:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:38:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:38:08,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:38:08,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 2003 transitions, 59831 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:08,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:08,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:38:08,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:29,245 INFO L124 PetriNetUnfolderBase]: 9159/30286 cut-off events. [2023-11-28 20:38:29,245 INFO L125 PetriNetUnfolderBase]: For 716984/719250 co-relation queries the response was YES. [2023-11-28 20:38:29,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181379 conditions, 30286 events. 9159/30286 cut-off events. For 716984/719250 co-relation queries the response was YES. Maximal size of possible extension queue 1104. Compared 381260 event pairs, 574 based on Foata normal form. 1399/31284 useless extension candidates. Maximal degree in co-relation 181151. Up to 5952 conditions per place. [2023-11-28 20:38:29,750 INFO L140 encePairwiseOnDemand]: 207/244 looper letters, 921 selfloop transitions, 1321 changer transitions 6/2450 dead transitions. [2023-11-28 20:38:29,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 2450 transitions, 73500 flow [2023-11-28 20:38:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-28 20:38:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-28 20:38:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5173 transitions. [2023-11-28 20:38:29,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7310627473148672 [2023-11-28 20:38:29,754 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 5173 transitions. [2023-11-28 20:38:29,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 5173 transitions. [2023-11-28 20:38:29,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:29,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 5173 transitions. [2023-11-28 20:38:29,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 178.3793103448276) internal successors, (5173), 29 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:29,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 244.0) internal successors, (7320), 30 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:29,768 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 244.0) internal successors, (7320), 30 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:29,768 INFO L175 Difference]: Start difference. First operand has 604 places, 2003 transitions, 59831 flow. Second operand 29 states and 5173 transitions. [2023-11-28 20:38:29,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 2450 transitions, 73500 flow [2023-11-28 20:38:41,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 2450 transitions, 73091 flow, removed 144 selfloop flow, removed 12 redundant places. [2023-11-28 20:38:41,261 INFO L231 Difference]: Finished difference. Result has 634 places, 2150 transitions, 70448 flow [2023-11-28 20:38:41,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=59446, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2003, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=70448, PETRI_PLACES=634, PETRI_TRANSITIONS=2150} [2023-11-28 20:38:41,263 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 387 predicate places. [2023-11-28 20:38:41,263 INFO L495 AbstractCegarLoop]: Abstraction has has 634 places, 2150 transitions, 70448 flow [2023-11-28 20:38:41,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:41,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:41,264 INFO L208 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] [2023-11-28 20:38:41,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 20:38:41,264 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:38:41,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:41,264 INFO L85 PathProgramCache]: Analyzing trace with hash -584209724, now seen corresponding path program 12 times [2023-11-28 20:38:41,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729836151] [2023-11-28 20:38:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:41,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:41,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729836151] [2023-11-28 20:38:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729836151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:41,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:41,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:38:41,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568566043] [2023-11-28 20:38:41,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:41,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:38:41,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:41,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:38:41,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:38:43,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:38:43,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 2150 transitions, 70448 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:43,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:43,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:38:43,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:39:06,998 INFO L124 PetriNetUnfolderBase]: 9546/31544 cut-off events. [2023-11-28 20:39:06,998 INFO L125 PetriNetUnfolderBase]: For 892594/895355 co-relation queries the response was YES. [2023-11-28 20:39:07,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197638 conditions, 31544 events. 9546/31544 cut-off events. For 892594/895355 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 400177 event pairs, 545 based on Foata normal form. 1838/32977 useless extension candidates. Maximal degree in co-relation 197396. Up to 6215 conditions per place. [2023-11-28 20:39:07,754 INFO L140 encePairwiseOnDemand]: 208/244 looper letters, 941 selfloop transitions, 1383 changer transitions 5/2531 dead transitions. [2023-11-28 20:39:07,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 2531 transitions, 82805 flow [2023-11-28 20:39:07,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 20:39:07,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-28 20:39:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4808 transitions. [2023-11-28 20:39:07,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7298117789921068 [2023-11-28 20:39:07,759 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4808 transitions. [2023-11-28 20:39:07,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4808 transitions. [2023-11-28 20:39:07,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:39:07,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4808 transitions. [2023-11-28 20:39:07,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 178.07407407407408) internal successors, (4808), 27 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:07,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:07,772 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:07,773 INFO L175 Difference]: Start difference. First operand has 634 places, 2150 transitions, 70448 flow. Second operand 27 states and 4808 transitions. [2023-11-28 20:39:07,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 2531 transitions, 82805 flow [2023-11-28 20:39:21,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 2531 transitions, 82559 flow, removed 60 selfloop flow, removed 14 redundant places. [2023-11-28 20:39:21,153 INFO L231 Difference]: Finished difference. Result has 659 places, 2248 transitions, 80070 flow [2023-11-28 20:39:21,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=70210, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=80070, PETRI_PLACES=659, PETRI_TRANSITIONS=2248} [2023-11-28 20:39:21,155 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 412 predicate places. [2023-11-28 20:39:21,155 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 2248 transitions, 80070 flow [2023-11-28 20:39:21,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:21,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:39:21,156 INFO L208 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] [2023-11-28 20:39:21,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 20:39:21,156 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:39:21,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1955343926, now seen corresponding path program 13 times [2023-11-28 20:39:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495327372] [2023-11-28 20:39:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:21,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495327372] [2023-11-28 20:39:21,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495327372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:21,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:21,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:39:21,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561076540] [2023-11-28 20:39:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:21,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:39:21,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:21,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:39:21,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:39:23,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:39:23,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 2248 transitions, 80070 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:23,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:39:23,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:39:23,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:39:49,571 INFO L124 PetriNetUnfolderBase]: 9976/32949 cut-off events. [2023-11-28 20:39:49,571 INFO L125 PetriNetUnfolderBase]: For 1107032/1110112 co-relation queries the response was YES. [2023-11-28 20:39:50,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215485 conditions, 32949 events. 9976/32949 cut-off events. For 1107032/1110112 co-relation queries the response was YES. Maximal size of possible extension queue 1217. Compared 421430 event pairs, 572 based on Foata normal form. 2084/34622 useless extension candidates. Maximal degree in co-relation 215230. Up to 6496 conditions per place. [2023-11-28 20:39:50,452 INFO L140 encePairwiseOnDemand]: 207/244 looper letters, 1026 selfloop transitions, 1440 changer transitions 6/2674 dead transitions. [2023-11-28 20:39:50,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 2674 transitions, 93931 flow [2023-11-28 20:39:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:39:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 20:39:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5350 transitions. [2023-11-28 20:39:50,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7308743169398907 [2023-11-28 20:39:50,455 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 5350 transitions. [2023-11-28 20:39:50,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 5350 transitions. [2023-11-28 20:39:50,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:39:50,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 5350 transitions. [2023-11-28 20:39:50,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 178.33333333333334) internal successors, (5350), 30 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:50,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:50,464 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:50,464 INFO L175 Difference]: Start difference. First operand has 659 places, 2248 transitions, 80070 flow. Second operand 30 states and 5350 transitions. [2023-11-28 20:39:50,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 2674 transitions, 93931 flow [2023-11-28 20:40:08,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 675 places, 2674 transitions, 93682 flow, removed 63 selfloop flow, removed 13 redundant places. [2023-11-28 20:40:08,189 INFO L231 Difference]: Finished difference. Result has 689 places, 2361 transitions, 90745 flow [2023-11-28 20:40:08,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=79829, PETRI_DIFFERENCE_MINUEND_PLACES=646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=824, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=90745, PETRI_PLACES=689, PETRI_TRANSITIONS=2361} [2023-11-28 20:40:08,191 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 442 predicate places. [2023-11-28 20:40:08,191 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 2361 transitions, 90745 flow [2023-11-28 20:40:08,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:40:08,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:08,192 INFO L208 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] [2023-11-28 20:40:08,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-28 20:40:08,192 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:40:08,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash -435469806, now seen corresponding path program 14 times [2023-11-28 20:40:08,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:08,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816720268] [2023-11-28 20:40:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:08,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:08,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:08,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816720268] [2023-11-28 20:40:08,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816720268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:08,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:08,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:40:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805393320] [2023-11-28 20:40:08,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:08,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:40:08,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:40:08,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:40:10,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:40:10,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 2361 transitions, 90745 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:40:10,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:10,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:40:10,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:38,236 INFO L124 PetriNetUnfolderBase]: 10423/34205 cut-off events. [2023-11-28 20:40:38,236 INFO L125 PetriNetUnfolderBase]: For 1331756/1334640 co-relation queries the response was YES. [2023-11-28 20:40:38,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234660 conditions, 34205 events. 10423/34205 cut-off events. For 1331756/1334640 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 440246 event pairs, 660 based on Foata normal form. 1894/35692 useless extension candidates. Maximal degree in co-relation 234391. Up to 6775 conditions per place. [2023-11-28 20:40:39,015 INFO L140 encePairwiseOnDemand]: 207/244 looper letters, 1227 selfloop transitions, 1371 changer transitions 6/2806 dead transitions. [2023-11-28 20:40:39,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 2806 transitions, 105324 flow [2023-11-28 20:40:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:40:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 20:40:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5356 transitions. [2023-11-28 20:40:39,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7316939890710382 [2023-11-28 20:40:39,018 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 5356 transitions. [2023-11-28 20:40:39,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 5356 transitions. [2023-11-28 20:40:39,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:39,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 5356 transitions. [2023-11-28 20:40:39,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 178.53333333333333) internal successors, (5356), 30 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:40:39,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:40:39,028 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 244.0) internal successors, (7564), 31 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:40:39,028 INFO L175 Difference]: Start difference. First operand has 689 places, 2361 transitions, 90745 flow. Second operand 30 states and 5356 transitions. [2023-11-28 20:40:39,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 718 places, 2806 transitions, 105324 flow [2023-11-28 20:41:01,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 704 places, 2806 transitions, 105003 flow, removed 95 selfloop flow, removed 14 redundant places. [2023-11-28 20:41:01,489 INFO L231 Difference]: Finished difference. Result has 719 places, 2476 transitions, 101182 flow [2023-11-28 20:41:01,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=90427, PETRI_DIFFERENCE_MINUEND_PLACES=675, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1005, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=101182, PETRI_PLACES=719, PETRI_TRANSITIONS=2476} [2023-11-28 20:41:01,492 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 472 predicate places. [2023-11-28 20:41:01,492 INFO L495 AbstractCegarLoop]: Abstraction has has 719 places, 2476 transitions, 101182 flow [2023-11-28 20:41:01,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:01,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:41:01,492 INFO L208 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] [2023-11-28 20:41:01,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-28 20:41:01,493 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:41:01,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash 258609364, now seen corresponding path program 15 times [2023-11-28 20:41:01,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:41:01,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112130685] [2023-11-28 20:41:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:41:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:02,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:41:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112130685] [2023-11-28 20:41:02,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112130685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:02,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:02,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:41:02,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641187460] [2023-11-28 20:41:02,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:02,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:41:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:41:02,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:41:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:41:03,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:41:03,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 719 places, 2476 transitions, 101182 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:03,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:41:03,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:41:03,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:41:35,337 INFO L124 PetriNetUnfolderBase]: 10853/35854 cut-off events. [2023-11-28 20:41:35,337 INFO L125 PetriNetUnfolderBase]: For 1600617/1604126 co-relation queries the response was YES. [2023-11-28 20:41:36,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254457 conditions, 35854 events. 10853/35854 cut-off events. For 1600617/1604126 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 465914 event pairs, 682 based on Foata normal form. 2439/37806 useless extension candidates. Maximal degree in co-relation 254173. Up to 7058 conditions per place. [2023-11-28 20:41:36,222 INFO L140 encePairwiseOnDemand]: 208/244 looper letters, 1090 selfloop transitions, 1586 changer transitions 5/2883 dead transitions. [2023-11-28 20:41:36,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 2883 transitions, 116125 flow [2023-11-28 20:41:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-28 20:41:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-28 20:41:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4985 transitions. [2023-11-28 20:41:36,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7296545667447307 [2023-11-28 20:41:36,227 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4985 transitions. [2023-11-28 20:41:36,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4985 transitions. [2023-11-28 20:41:36,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:41:36,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4985 transitions. [2023-11-28 20:41:36,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 178.03571428571428) internal successors, (4985), 28 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:36,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:36,234 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:36,234 INFO L175 Difference]: Start difference. First operand has 719 places, 2476 transitions, 101182 flow. Second operand 28 states and 4985 transitions. [2023-11-28 20:41:36,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 746 places, 2883 transitions, 116125 flow [2023-11-28 20:42:00,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 732 places, 2883 transitions, 115718 flow, removed 141 selfloop flow, removed 14 redundant places. [2023-11-28 20:42:00,785 INFO L231 Difference]: Finished difference. Result has 744 places, 2586 transitions, 112955 flow [2023-11-28 20:42:00,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=100787, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1479, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=905, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=112955, PETRI_PLACES=744, PETRI_TRANSITIONS=2586} [2023-11-28 20:42:00,787 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 497 predicate places. [2023-11-28 20:42:00,787 INFO L495 AbstractCegarLoop]: Abstraction has has 744 places, 2586 transitions, 112955 flow [2023-11-28 20:42:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:42:00,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:42:00,787 INFO L208 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] [2023-11-28 20:42:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-28 20:42:00,787 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:42:00,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:42:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash 247516796, now seen corresponding path program 16 times [2023-11-28 20:42:00,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:42:00,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799036828] [2023-11-28 20:42:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:42:00,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:42:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:42:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:42:01,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:42:01,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799036828] [2023-11-28 20:42:01,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799036828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:42:01,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:42:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:42:01,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184329363] [2023-11-28 20:42:01,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:42:01,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:42:01,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:42:01,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:42:01,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:42:02,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:42:02,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 744 places, 2586 transitions, 112955 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:42:02,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:42:02,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:42:02,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:42:37,160 INFO L124 PetriNetUnfolderBase]: 11239/37167 cut-off events. [2023-11-28 20:42:37,160 INFO L125 PetriNetUnfolderBase]: For 1875110/1878765 co-relation queries the response was YES. [2023-11-28 20:42:37,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272747 conditions, 37167 events. 11239/37167 cut-off events. For 1875110/1878765 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 486564 event pairs, 596 based on Foata normal form. 2623/39311 useless extension candidates. Maximal degree in co-relation 272451. Up to 7316 conditions per place. [2023-11-28 20:42:38,105 INFO L140 encePairwiseOnDemand]: 208/244 looper letters, 1186 selfloop transitions, 1633 changer transitions 5/3026 dead transitions. [2023-11-28 20:42:38,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 3026 transitions, 129224 flow [2023-11-28 20:42:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-28 20:42:38,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-28 20:42:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4996 transitions. [2023-11-28 20:42:38,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7312646370023419 [2023-11-28 20:42:38,108 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4996 transitions. [2023-11-28 20:42:38,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4996 transitions. [2023-11-28 20:42:38,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:42:38,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4996 transitions. [2023-11-28 20:42:38,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 178.42857142857142) internal successors, (4996), 28 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:42:38,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:42:38,115 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 244.0) internal successors, (7076), 29 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:42:38,115 INFO L175 Difference]: Start difference. First operand has 744 places, 2586 transitions, 112955 flow. Second operand 28 states and 4996 transitions. [2023-11-28 20:42:38,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 771 places, 3026 transitions, 129224 flow [2023-11-28 20:43:07,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 3026 transitions, 128816 flow, removed 139 selfloop flow, removed 14 redundant places. [2023-11-28 20:43:07,143 INFO L231 Difference]: Finished difference. Result has 770 places, 2708 transitions, 125606 flow [2023-11-28 20:43:07,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=112569, PETRI_DIFFERENCE_MINUEND_PLACES=730, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=125606, PETRI_PLACES=770, PETRI_TRANSITIONS=2708} [2023-11-28 20:43:07,145 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 523 predicate places. [2023-11-28 20:43:07,145 INFO L495 AbstractCegarLoop]: Abstraction has has 770 places, 2708 transitions, 125606 flow [2023-11-28 20:43:07,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:43:07,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:43:07,146 INFO L208 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] [2023-11-28 20:43:07,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-28 20:43:07,146 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:43:07,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2140727894, now seen corresponding path program 17 times [2023-11-28 20:43:07,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:07,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300215730] [2023-11-28 20:43:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:07,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:43:07,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:07,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300215730] [2023-11-28 20:43:07,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300215730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:07,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:07,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:43:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595708737] [2023-11-28 20:43:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:07,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:43:07,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:43:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:43:09,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:43:09,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 2708 transitions, 125606 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:43:09,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:43:09,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:43:09,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:43:51,133 INFO L124 PetriNetUnfolderBase]: 12585/41594 cut-off events. [2023-11-28 20:43:51,133 INFO L125 PetriNetUnfolderBase]: For 2337431/2341968 co-relation queries the response was YES. [2023-11-28 20:43:52,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313304 conditions, 41594 events. 12585/41594 cut-off events. For 2337431/2341968 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 555069 event pairs, 772 based on Foata normal form. 3016/44046 useless extension candidates. Maximal degree in co-relation 312995. Up to 8191 conditions per place. [2023-11-28 20:43:52,525 INFO L140 encePairwiseOnDemand]: 208/244 looper letters, 1100 selfloop transitions, 1884 changer transitions 4/3190 dead transitions. [2023-11-28 20:43:52,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 3190 transitions, 146734 flow [2023-11-28 20:43:52,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:43:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:43:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3776 transitions. [2023-11-28 20:43:52,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7369242779078845 [2023-11-28 20:43:52,528 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3776 transitions. [2023-11-28 20:43:52,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3776 transitions. [2023-11-28 20:43:52,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:43:52,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3776 transitions. [2023-11-28 20:43:52,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 179.8095238095238) internal successors, (3776), 21 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:43:52,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:43:52,537 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:43:52,537 INFO L175 Difference]: Start difference. First operand has 770 places, 2708 transitions, 125606 flow. Second operand 21 states and 3776 transitions. [2023-11-28 20:43:52,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 3190 transitions, 146734 flow [2023-11-28 20:44:26,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 3190 transitions, 146239 flow, removed 155 selfloop flow, removed 14 redundant places. [2023-11-28 20:44:26,267 INFO L231 Difference]: Finished difference. Result has 792 places, 2920 transitions, 144354 flow [2023-11-28 20:44:26,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=125154, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=889, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=144354, PETRI_PLACES=792, PETRI_TRANSITIONS=2920} [2023-11-28 20:44:26,269 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 545 predicate places. [2023-11-28 20:44:26,269 INFO L495 AbstractCegarLoop]: Abstraction has has 792 places, 2920 transitions, 144354 flow [2023-11-28 20:44:26,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:44:26,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:44:26,270 INFO L208 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] [2023-11-28 20:44:26,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-28 20:44:26,270 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:44:26,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1464638328, now seen corresponding path program 18 times [2023-11-28 20:44:26,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:26,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592604238] [2023-11-28 20:44:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:26,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:44:26,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:26,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592604238] [2023-11-28 20:44:26,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592604238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:26,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:26,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:44:26,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174318748] [2023-11-28 20:44:26,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:26,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:44:26,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:26,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:44:26,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:44:28,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:44:28,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 2920 transitions, 144354 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:44:28,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:44:28,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:44:28,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:45:21,326 INFO L124 PetriNetUnfolderBase]: 13959/46147 cut-off events. [2023-11-28 20:45:21,326 INFO L125 PetriNetUnfolderBase]: For 2911744/2917078 co-relation queries the response was YES. [2023-11-28 20:45:22,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357531 conditions, 46147 events. 13959/46147 cut-off events. For 2911744/2917078 co-relation queries the response was YES. Maximal size of possible extension queue 1754. Compared 626632 event pairs, 983 based on Foata normal form. 3498/48975 useless extension candidates. Maximal degree in co-relation 357202. Up to 10601 conditions per place. [2023-11-28 20:45:22,838 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 1244 selfloop transitions, 1961 changer transitions 3/3410 dead transitions. [2023-11-28 20:45:22,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 3410 transitions, 168199 flow [2023-11-28 20:45:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-28 20:45:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-28 20:45:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4434 transitions. [2023-11-28 20:45:22,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7268852459016394 [2023-11-28 20:45:22,843 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4434 transitions. [2023-11-28 20:45:22,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4434 transitions. [2023-11-28 20:45:22,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:45:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4434 transitions. [2023-11-28 20:45:22,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 177.36) internal successors, (4434), 25 states have internal predecessors, (4434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:45:22,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 244.0) internal successors, (6344), 26 states have internal predecessors, (6344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:45:22,854 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 244.0) internal successors, (6344), 26 states have internal predecessors, (6344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:45:22,854 INFO L175 Difference]: Start difference. First operand has 792 places, 2920 transitions, 144354 flow. Second operand 25 states and 4434 transitions. [2023-11-28 20:45:22,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 3410 transitions, 168199 flow [2023-11-28 20:46:11,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 3410 transitions, 168115 flow, removed 40 selfloop flow, removed 2 redundant places. [2023-11-28 20:46:11,989 INFO L231 Difference]: Finished difference. Result has 832 places, 3146 transitions, 165839 flow [2023-11-28 20:46:11,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=144274, PETRI_DIFFERENCE_MINUEND_PLACES=790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1752, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1045, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=165839, PETRI_PLACES=832, PETRI_TRANSITIONS=3146} [2023-11-28 20:46:11,991 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 585 predicate places. [2023-11-28 20:46:11,991 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 3146 transitions, 165839 flow [2023-11-28 20:46:11,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:46:11,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:46:11,992 INFO L208 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] [2023-11-28 20:46:11,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-28 20:46:11,992 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-28 20:46:11,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1828751514, now seen corresponding path program 19 times [2023-11-28 20:46:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:46:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607658783] [2023-11-28 20:46:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:11,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:46:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:46:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:46:12,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:46:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607658783] [2023-11-28 20:46:12,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607658783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:46:12,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:46:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 20:46:12,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142979758] [2023-11-28 20:46:12,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:46:12,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:46:12,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:46:12,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:46:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:46:13,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-28 20:46:13,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 3146 transitions, 165839 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:46:13,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:46:13,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-28 20:46:13,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:47:18,693 INFO L124 PetriNetUnfolderBase]: 14996/49575 cut-off events. [2023-11-28 20:47:18,693 INFO L125 PetriNetUnfolderBase]: For 3438043/3443573 co-relation queries the response was YES. [2023-11-28 20:47:20,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395209 conditions, 49575 events. 14996/49575 cut-off events. For 3438043/3443573 co-relation queries the response was YES. Maximal size of possible extension queue 1884. Compared 681333 event pairs, 1068 based on Foata normal form. 3595/52443 useless extension candidates. Maximal degree in co-relation 394857. Up to 11515 conditions per place. [2023-11-28 20:47:20,450 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 1276 selfloop transitions, 2097 changer transitions 3/3578 dead transitions. [2023-11-28 20:47:20,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 3578 transitions, 187890 flow [2023-11-28 20:47:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:47:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:47:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3741 transitions. [2023-11-28 20:47:20,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7300936768149883 [2023-11-28 20:47:20,453 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3741 transitions. [2023-11-28 20:47:20,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3741 transitions. [2023-11-28 20:47:20,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:47:20,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3741 transitions. [2023-11-28 20:47:20,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 178.14285714285714) internal successors, (3741), 21 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:47:20,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:47:20,463 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 244.0) internal successors, (5368), 22 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:47:20,463 INFO L175 Difference]: Start difference. First operand has 832 places, 3146 transitions, 165839 flow. Second operand 21 states and 3741 transitions. [2023-11-28 20:47:20,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 3578 transitions, 187890 flow