./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/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_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/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_83a11f9d-0d2d-4788-95cc-18b302784c63/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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:41:31,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:41:32,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 23:41:32,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:41:32,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:41:32,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:41:32,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:41:32,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:41:32,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:41:32,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:41:32,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:41:32,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:41:32,071 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:41:32,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:41:32,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:41:32,072 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:41:32,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:41:32,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:41:32,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:41:32,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:41:32,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:41:32,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:41:32,076 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 23:41:32,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:41:32,077 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:41:32,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:41:32,078 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:41:32,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:41:32,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:41:32,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:41:32,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:41:32,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:41:32,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:41:32,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:41:32,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:41:32,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:41:32,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:41:32,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:41:32,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:41:32,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:41:32,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:41:32,083 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_83a11f9d-0d2d-4788-95cc-18b302784c63/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2023-11-28 23:41:32,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:41:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:41:32,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:41:32,336 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:41:32,336 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:41:32,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-28 23:41:35,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:41:35,338 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:41:35,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-28 23:41:35,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/data/8a0999a34/2d1ae8895d694a6a9753f56c47d0e2f9/FLAG53b4a991c [2023-11-28 23:41:35,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/data/8a0999a34/2d1ae8895d694a6a9753f56c47d0e2f9 [2023-11-28 23:41:35,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:41:35,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:41:35,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:41:35,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:41:35,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:41:35,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:41:35" (1/1) ... [2023-11-28 23:41:35,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f97d78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:35, skipping insertion in model container [2023-11-28 23:41:35,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:41:35" (1/1) ... [2023-11-28 23:41:35,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:41:36,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:41:36,051 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:41:36,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:41:36,182 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:41:36,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36 WrapperNode [2023-11-28 23:41:36,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:41:36,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:41:36,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:41:36,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:41:36,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,248 INFO L138 Inliner]: procedures = 371, calls = 50, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 247 [2023-11-28 23:41:36,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:41:36,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:41:36,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:41:36,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:41:36,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:41:36,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:41:36,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:41:36,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:41:36,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (1/1) ... [2023-11-28 23:41:36,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:41:36,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:41:36,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:41:36,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a11f9d-0d2d-4788-95cc-18b302784c63/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:41:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:41:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 23:41:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:41:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:41:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 23:41:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 23:41:36,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 23:41:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 23:41:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:41:36,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:41:36,375 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 23:41:36,527 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:41:36,529 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:41:36,953 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:41:37,003 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:41:37,003 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:41:37,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:41:37 BoogieIcfgContainer [2023-11-28 23:41:37,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:41:37,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:41:37,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:41:37,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:41:37,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:41:35" (1/3) ... [2023-11-28 23:41:37,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e875bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:41:37, skipping insertion in model container [2023-11-28 23:41:37,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:41:36" (2/3) ... [2023-11-28 23:41:37,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e875bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:41:37, skipping insertion in model container [2023-11-28 23:41:37,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:41:37" (3/3) ... [2023-11-28 23:41:37,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-11-28 23:41:37,022 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 23:41:37,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:41:37,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-28 23:41:37,033 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 23:41:37,116 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 23:41:37,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 274 transitions, 552 flow [2023-11-28 23:41:37,242 INFO L124 PetriNetUnfolderBase]: 2/273 cut-off events. [2023-11-28 23:41:37,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:41:37,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 2/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 265 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 203. Up to 2 conditions per place. [2023-11-28 23:41:37,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 274 transitions, 552 flow [2023-11-28 23:41:37,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 273 transitions, 549 flow [2023-11-28 23:41:37,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:41:37,273 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;@551f8ded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:41:37,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-28 23:41:37,280 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 23:41:37,280 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2023-11-28 23:41:37,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:41:37,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:37,281 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] [2023-11-28 23:41:37,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:37,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:37,286 INFO L85 PathProgramCache]: Analyzing trace with hash 104069639, now seen corresponding path program 1 times [2023-11-28 23:41:37,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817693934] [2023-11-28 23:41:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:37,960 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 23:41:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817693934] [2023-11-28 23:41:37,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817693934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:37,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:37,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325747150] [2023-11-28 23:41:37,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:37,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:38,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:38,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:38,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 274 [2023-11-28 23:41:38,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 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 23:41:38,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:38,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 274 [2023-11-28 23:41:38,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:39,437 INFO L124 PetriNetUnfolderBase]: 1377/5001 cut-off events. [2023-11-28 23:41:39,437 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:41:39,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7795 conditions, 5001 events. 1377/5001 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 37513 event pairs, 1344 based on Foata normal form. 36/4671 useless extension candidates. Maximal degree in co-relation 7698. Up to 2785 conditions per place. [2023-11-28 23:41:39,471 INFO L140 encePairwiseOnDemand]: 267/274 looper letters, 92 selfloop transitions, 5 changer transitions 0/271 dead transitions. [2023-11-28 23:41:39,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 271 transitions, 739 flow [2023-11-28 23:41:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2023-11-28 23:41:39,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.698905109489051 [2023-11-28 23:41:39,492 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1149 transitions. [2023-11-28 23:41:39,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1149 transitions. [2023-11-28 23:41:39,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:39,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1149 transitions. [2023-11-28 23:41:39,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 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 23:41:39,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:39,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:39,513 INFO L175 Difference]: Start difference. First operand has 275 places, 273 transitions, 549 flow. Second operand 6 states and 1149 transitions. [2023-11-28 23:41:39,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 271 transitions, 739 flow [2023-11-28 23:41:39,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 271 transitions, 738 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:41:39,525 INFO L231 Difference]: Finished difference. Result has 278 places, 271 transitions, 554 flow [2023-11-28 23:41:39,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=278, PETRI_TRANSITIONS=271} [2023-11-28 23:41:39,531 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 3 predicate places. [2023-11-28 23:41:39,531 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 271 transitions, 554 flow [2023-11-28 23:41:39,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 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 23:41:39,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:39,533 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] [2023-11-28 23:41:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:41:39,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:39,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1123742549, now seen corresponding path program 1 times [2023-11-28 23:41:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001611186] [2023-11-28 23:41:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:39,878 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 23:41:39,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:39,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001611186] [2023-11-28 23:41:39,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001611186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:39,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:39,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:39,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701826189] [2023-11-28 23:41:39,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:40,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 274 [2023-11-28 23:41:40,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 271 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 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 23:41:40,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:40,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 274 [2023-11-28 23:41:40,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:41,412 INFO L124 PetriNetUnfolderBase]: 762/4072 cut-off events. [2023-11-28 23:41:41,413 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:41:41,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5656 conditions, 4072 events. 762/4072 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31446 event pairs, 460 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 5609. Up to 1372 conditions per place. [2023-11-28 23:41:41,437 INFO L140 encePairwiseOnDemand]: 242/274 looper letters, 81 selfloop transitions, 90 changer transitions 0/371 dead transitions. [2023-11-28 23:41:41,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 371 transitions, 1096 flow [2023-11-28 23:41:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-11-28 23:41:41,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8424574209245742 [2023-11-28 23:41:41,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-11-28 23:41:41,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-11-28 23:41:41,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:41,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-11-28 23:41:41,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 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 23:41:41,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:41,456 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:41,457 INFO L175 Difference]: Start difference. First operand has 278 places, 271 transitions, 554 flow. Second operand 6 states and 1385 transitions. [2023-11-28 23:41:41,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 371 transitions, 1096 flow [2023-11-28 23:41:41,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 371 transitions, 1086 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:41:41,467 INFO L231 Difference]: Finished difference. Result has 282 places, 354 transitions, 1120 flow [2023-11-28 23:41:41,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1120, PETRI_PLACES=282, PETRI_TRANSITIONS=354} [2023-11-28 23:41:41,468 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 7 predicate places. [2023-11-28 23:41:41,469 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 354 transitions, 1120 flow [2023-11-28 23:41:41,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 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 23:41:41,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:41,470 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] [2023-11-28 23:41:41,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:41:41,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:41,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1384719745, now seen corresponding path program 1 times [2023-11-28 23:41:41,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:41,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611655801] [2023-11-28 23:41:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:41,854 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 23:41:41,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611655801] [2023-11-28 23:41:41,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611655801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:41,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:41,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:41,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205508848] [2023-11-28 23:41:41,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:41,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:41,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:41,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:41,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:42,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 274 [2023-11-28 23:41:42,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 354 transitions, 1120 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 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 23:41:42,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:42,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 274 [2023-11-28 23:41:42,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:44,080 INFO L124 PetriNetUnfolderBase]: 2110/7445 cut-off events. [2023-11-28 23:41:44,080 INFO L125 PetriNetUnfolderBase]: For 1551/1563 co-relation queries the response was YES. [2023-11-28 23:41:44,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13875 conditions, 7445 events. 2110/7445 cut-off events. For 1551/1563 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 60203 event pairs, 1264 based on Foata normal form. 0/6828 useless extension candidates. Maximal degree in co-relation 13770. Up to 4041 conditions per place. [2023-11-28 23:41:44,133 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 187 selfloop transitions, 123 changer transitions 0/486 dead transitions. [2023-11-28 23:41:44,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 486 transitions, 2164 flow [2023-11-28 23:41:44,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:44,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:44,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2023-11-28 23:41:44,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7889294403892944 [2023-11-28 23:41:44,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2023-11-28 23:41:44,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2023-11-28 23:41:44,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:44,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2023-11-28 23:41:44,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 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 23:41:44,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:44,153 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:44,153 INFO L175 Difference]: Start difference. First operand has 282 places, 354 transitions, 1120 flow. Second operand 6 states and 1297 transitions. [2023-11-28 23:41:44,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 486 transitions, 2164 flow [2023-11-28 23:41:44,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 486 transitions, 2164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:41:44,180 INFO L231 Difference]: Finished difference. Result has 291 places, 470 transitions, 2072 flow [2023-11-28 23:41:44,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2072, PETRI_PLACES=291, PETRI_TRANSITIONS=470} [2023-11-28 23:41:44,182 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 16 predicate places. [2023-11-28 23:41:44,182 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 470 transitions, 2072 flow [2023-11-28 23:41:44,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 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 23:41:44,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:44,183 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] [2023-11-28 23:41:44,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:41:44,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:44,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1143514296, now seen corresponding path program 1 times [2023-11-28 23:41:44,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955726542] [2023-11-28 23:41:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:44,616 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 23:41:44,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955726542] [2023-11-28 23:41:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955726542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:44,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:44,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:44,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398221511] [2023-11-28 23:41:44,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:44,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:44,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:45,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 274 [2023-11-28 23:41:45,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 470 transitions, 2072 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 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 23:41:45,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:45,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 274 [2023-11-28 23:41:45,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:46,531 INFO L124 PetriNetUnfolderBase]: 2410/8372 cut-off events. [2023-11-28 23:41:46,531 INFO L125 PetriNetUnfolderBase]: For 3693/3711 co-relation queries the response was YES. [2023-11-28 23:41:46,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17820 conditions, 8372 events. 2410/8372 cut-off events. For 3693/3711 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 68499 event pairs, 1292 based on Foata normal form. 0/7729 useless extension candidates. Maximal degree in co-relation 17701. Up to 4365 conditions per place. [2023-11-28 23:41:46,572 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 299 selfloop transitions, 123 changer transitions 0/602 dead transitions. [2023-11-28 23:41:46,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 602 transitions, 3564 flow [2023-11-28 23:41:46,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2023-11-28 23:41:46,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7889294403892944 [2023-11-28 23:41:46,577 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2023-11-28 23:41:46,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2023-11-28 23:41:46,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:46,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2023-11-28 23:41:46,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 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 23:41:46,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:46,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:46,587 INFO L175 Difference]: Start difference. First operand has 291 places, 470 transitions, 2072 flow. Second operand 6 states and 1297 transitions. [2023-11-28 23:41:46,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 602 transitions, 3564 flow [2023-11-28 23:41:46,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 602 transitions, 3404 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-11-28 23:41:46,615 INFO L231 Difference]: Finished difference. Result has 300 places, 586 transitions, 3088 flow [2023-11-28 23:41:46,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3088, PETRI_PLACES=300, PETRI_TRANSITIONS=586} [2023-11-28 23:41:46,617 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 25 predicate places. [2023-11-28 23:41:46,617 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 586 transitions, 3088 flow [2023-11-28 23:41:46,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 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 23:41:46,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:46,618 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] [2023-11-28 23:41:46,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:41:46,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:46,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:46,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1982707980, now seen corresponding path program 1 times [2023-11-28 23:41:46,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:46,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779710376] [2023-11-28 23:41:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:46,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:47,162 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 23:41:47,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:47,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779710376] [2023-11-28 23:41:47,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779710376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:47,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:47,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:47,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744896602] [2023-11-28 23:41:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:47,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:47,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 274 [2023-11-28 23:41:47,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 586 transitions, 3088 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 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 23:41:47,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:47,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 274 [2023-11-28 23:41:47,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:49,266 INFO L124 PetriNetUnfolderBase]: 2735/9186 cut-off events. [2023-11-28 23:41:49,266 INFO L125 PetriNetUnfolderBase]: For 5344/5421 co-relation queries the response was YES. [2023-11-28 23:41:49,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21685 conditions, 9186 events. 2735/9186 cut-off events. For 5344/5421 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 75518 event pairs, 1246 based on Foata normal form. 0/8519 useless extension candidates. Maximal degree in co-relation 21553. Up to 4881 conditions per place. [2023-11-28 23:41:49,308 INFO L140 encePairwiseOnDemand]: 231/274 looper letters, 360 selfloop transitions, 180 changer transitions 0/769 dead transitions. [2023-11-28 23:41:49,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 769 transitions, 4756 flow [2023-11-28 23:41:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1344 transitions. [2023-11-28 23:41:49,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8175182481751825 [2023-11-28 23:41:49,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1344 transitions. [2023-11-28 23:41:49,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1344 transitions. [2023-11-28 23:41:49,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:49,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1344 transitions. [2023-11-28 23:41:49,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 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 23:41:49,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:49,322 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:49,322 INFO L175 Difference]: Start difference. First operand has 300 places, 586 transitions, 3088 flow. Second operand 6 states and 1344 transitions. [2023-11-28 23:41:49,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 769 transitions, 4756 flow [2023-11-28 23:41:49,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 769 transitions, 4360 flow, removed 198 selfloop flow, removed 0 redundant places. [2023-11-28 23:41:49,362 INFO L231 Difference]: Finished difference. Result has 310 places, 753 transitions, 4088 flow [2023-11-28 23:41:49,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=2704, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4088, PETRI_PLACES=310, PETRI_TRANSITIONS=753} [2023-11-28 23:41:49,364 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 35 predicate places. [2023-11-28 23:41:49,365 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 753 transitions, 4088 flow [2023-11-28 23:41:49,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 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 23:41:49,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:49,366 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] [2023-11-28 23:41:49,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 23:41:49,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:49,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:49,367 INFO L85 PathProgramCache]: Analyzing trace with hash -199277295, now seen corresponding path program 1 times [2023-11-28 23:41:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:49,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468281751] [2023-11-28 23:41:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:49,813 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 23:41:49,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:49,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468281751] [2023-11-28 23:41:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468281751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:41:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637641901] [2023-11-28 23:41:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:49,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:41:49,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:41:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:41:50,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 274 [2023-11-28 23:41:50,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 753 transitions, 4088 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 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 23:41:50,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:50,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 274 [2023-11-28 23:41:50,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:52,186 INFO L124 PetriNetUnfolderBase]: 3183/10539 cut-off events. [2023-11-28 23:41:52,186 INFO L125 PetriNetUnfolderBase]: For 8623/8731 co-relation queries the response was YES. [2023-11-28 23:41:52,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27958 conditions, 10539 events. 3183/10539 cut-off events. For 8623/8731 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 88316 event pairs, 1284 based on Foata normal form. 0/9849 useless extension candidates. Maximal degree in co-relation 27821. Up to 5375 conditions per place. [2023-11-28 23:41:52,238 INFO L140 encePairwiseOnDemand]: 231/274 looper letters, 513 selfloop transitions, 180 changer transitions 0/936 dead transitions. [2023-11-28 23:41:52,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 936 transitions, 6356 flow [2023-11-28 23:41:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:41:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:41:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1344 transitions. [2023-11-28 23:41:52,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8175182481751825 [2023-11-28 23:41:52,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1344 transitions. [2023-11-28 23:41:52,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1344 transitions. [2023-11-28 23:41:52,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:52,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1344 transitions. [2023-11-28 23:41:52,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 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 23:41:52,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:52,249 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 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 23:41:52,249 INFO L175 Difference]: Start difference. First operand has 310 places, 753 transitions, 4088 flow. Second operand 6 states and 1344 transitions. [2023-11-28 23:41:52,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 936 transitions, 6356 flow [2023-11-28 23:41:52,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 936 transitions, 6302 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-11-28 23:41:52,296 INFO L231 Difference]: Finished difference. Result has 320 places, 920 transitions, 5724 flow [2023-11-28 23:41:52,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4034, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5724, PETRI_PLACES=320, PETRI_TRANSITIONS=920} [2023-11-28 23:41:52,297 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 45 predicate places. [2023-11-28 23:41:52,297 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 920 transitions, 5724 flow [2023-11-28 23:41:52,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 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 23:41:52,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:52,298 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] [2023-11-28 23:41:52,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:41:52,299 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:52,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -972248260, now seen corresponding path program 1 times [2023-11-28 23:41:52,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:52,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100102282] [2023-11-28 23:41:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:52,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:41:53,125 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 23:41:53,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:41:53,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100102282] [2023-11-28 23:41:53,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100102282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:41:53,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:41:53,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:41:53,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38886190] [2023-11-28 23:41:53,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:41:53,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:41:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:41:53,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:41:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:41:55,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:41:55,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 920 transitions, 5724 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:41:55,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:41:55,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:41:55,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:41:59,721 INFO L124 PetriNetUnfolderBase]: 4122/12927 cut-off events. [2023-11-28 23:41:59,721 INFO L125 PetriNetUnfolderBase]: For 15558/15653 co-relation queries the response was YES. [2023-11-28 23:41:59,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38498 conditions, 12927 events. 4122/12927 cut-off events. For 15558/15653 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 109132 event pairs, 746 based on Foata normal form. 27/12317 useless extension candidates. Maximal degree in co-relation 38349. Up to 4157 conditions per place. [2023-11-28 23:41:59,797 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 928 selfloop transitions, 216 changer transitions 1/1364 dead transitions. [2023-11-28 23:41:59,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1364 transitions, 10394 flow [2023-11-28 23:41:59,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:41:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-28 23:41:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3330 transitions. [2023-11-28 23:41:59,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7148990983254616 [2023-11-28 23:41:59,807 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3330 transitions. [2023-11-28 23:41:59,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3330 transitions. [2023-11-28 23:41:59,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:41:59,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3330 transitions. [2023-11-28 23:41:59,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 195.88235294117646) internal successors, (3330), 17 states have internal predecessors, (3330), 0 states have call successors, (0), 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 23:41:59,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 274.0) internal successors, (4932), 18 states have internal predecessors, (4932), 0 states have call successors, (0), 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 23:41:59,829 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 274.0) internal successors, (4932), 18 states have internal predecessors, (4932), 0 states have call successors, (0), 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 23:41:59,829 INFO L175 Difference]: Start difference. First operand has 320 places, 920 transitions, 5724 flow. Second operand 17 states and 3330 transitions. [2023-11-28 23:41:59,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1364 transitions, 10394 flow [2023-11-28 23:41:59,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1364 transitions, 10034 flow, removed 180 selfloop flow, removed 0 redundant places. [2023-11-28 23:41:59,960 INFO L231 Difference]: Finished difference. Result has 351 places, 969 transitions, 6544 flow [2023-11-28 23:41:59,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=5364, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=722, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6544, PETRI_PLACES=351, PETRI_TRANSITIONS=969} [2023-11-28 23:41:59,962 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 76 predicate places. [2023-11-28 23:41:59,963 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 969 transitions, 6544 flow [2023-11-28 23:41:59,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:41:59,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:41:59,964 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] [2023-11-28 23:41:59,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:41:59,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:41:59,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:41:59,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1692487702, now seen corresponding path program 2 times [2023-11-28 23:41:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:41:59,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779959767] [2023-11-28 23:41:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:41:59,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:41:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:00,637 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 23:42:00,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:00,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779959767] [2023-11-28 23:42:00,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779959767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:00,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:00,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:00,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237987301] [2023-11-28 23:42:00,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:00,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:00,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:00,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:00,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:03,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:03,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 969 transitions, 6544 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:03,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:03,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:03,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:07,671 INFO L124 PetriNetUnfolderBase]: 5098/15838 cut-off events. [2023-11-28 23:42:07,671 INFO L125 PetriNetUnfolderBase]: For 26249/26557 co-relation queries the response was YES. [2023-11-28 23:42:07,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51550 conditions, 15838 events. 5098/15838 cut-off events. For 26249/26557 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 138653 event pairs, 876 based on Foata normal form. 52/15149 useless extension candidates. Maximal degree in co-relation 51386. Up to 3161 conditions per place. [2023-11-28 23:42:07,768 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1308 selfloop transitions, 176 changer transitions 0/1703 dead transitions. [2023-11-28 23:42:07,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 1703 transitions, 15193 flow [2023-11-28 23:42:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-28 23:42:07,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-28 23:42:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3948 transitions. [2023-11-28 23:42:07,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.654943596549436 [2023-11-28 23:42:07,777 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3948 transitions. [2023-11-28 23:42:07,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3948 transitions. [2023-11-28 23:42:07,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:07,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3948 transitions. [2023-11-28 23:42:07,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 179.45454545454547) internal successors, (3948), 22 states have internal predecessors, (3948), 0 states have call successors, (0), 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 23:42:07,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 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 23:42:07,797 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 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 23:42:07,797 INFO L175 Difference]: Start difference. First operand has 351 places, 969 transitions, 6544 flow. Second operand 22 states and 3948 transitions. [2023-11-28 23:42:07,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 1703 transitions, 15193 flow [2023-11-28 23:42:07,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1703 transitions, 15191 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-28 23:42:07,937 INFO L231 Difference]: Finished difference. Result has 386 places, 1113 transitions, 8650 flow [2023-11-28 23:42:07,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=6542, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8650, PETRI_PLACES=386, PETRI_TRANSITIONS=1113} [2023-11-28 23:42:07,939 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 111 predicate places. [2023-11-28 23:42:07,939 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 1113 transitions, 8650 flow [2023-11-28 23:42:07,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:07,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:07,940 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] [2023-11-28 23:42:07,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:42:07,941 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:42:07,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:07,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2031147010, now seen corresponding path program 3 times [2023-11-28 23:42:07,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:07,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424787223] [2023-11-28 23:42:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:07,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:08,546 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 23:42:08,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:08,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424787223] [2023-11-28 23:42:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424787223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:08,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:08,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931869949] [2023-11-28 23:42:08,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:08,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:08,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:08,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:08,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:10,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:10,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1113 transitions, 8650 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:10,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:10,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:10,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:16,549 INFO L124 PetriNetUnfolderBase]: 5149/15883 cut-off events. [2023-11-28 23:42:16,549 INFO L125 PetriNetUnfolderBase]: For 32740/32944 co-relation queries the response was YES. [2023-11-28 23:42:16,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55343 conditions, 15883 events. 5149/15883 cut-off events. For 32740/32944 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 138420 event pairs, 1128 based on Foata normal form. 67/15210 useless extension candidates. Maximal degree in co-relation 55164. Up to 5142 conditions per place. [2023-11-28 23:42:16,668 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1002 selfloop transitions, 330 changer transitions 1/1552 dead transitions. [2023-11-28 23:42:16,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1552 transitions, 14291 flow [2023-11-28 23:42:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:42:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:42:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3491 transitions. [2023-11-28 23:42:16,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7078264395782644 [2023-11-28 23:42:16,675 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3491 transitions. [2023-11-28 23:42:16,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3491 transitions. [2023-11-28 23:42:16,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:16,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3491 transitions. [2023-11-28 23:42:16,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 193.94444444444446) internal successors, (3491), 18 states have internal predecessors, (3491), 0 states have call successors, (0), 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 23:42:16,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:42:16,690 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:42:16,690 INFO L175 Difference]: Start difference. First operand has 386 places, 1113 transitions, 8650 flow. Second operand 18 states and 3491 transitions. [2023-11-28 23:42:16,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 1552 transitions, 14291 flow [2023-11-28 23:42:16,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1552 transitions, 14184 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-11-28 23:42:16,914 INFO L231 Difference]: Finished difference. Result has 410 places, 1153 transitions, 10272 flow [2023-11-28 23:42:16,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=8597, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10272, PETRI_PLACES=410, PETRI_TRANSITIONS=1153} [2023-11-28 23:42:16,916 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 135 predicate places. [2023-11-28 23:42:16,916 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1153 transitions, 10272 flow [2023-11-28 23:42:16,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:16,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:16,917 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] [2023-11-28 23:42:16,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:42:16,917 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:42:16,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash -399341270, now seen corresponding path program 4 times [2023-11-28 23:42:16,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:16,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716047641] [2023-11-28 23:42:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:16,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:17,377 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 23:42:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716047641] [2023-11-28 23:42:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716047641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:17,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280332929] [2023-11-28 23:42:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:17,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:17,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:19,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:19,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1153 transitions, 10272 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:19,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:19,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:19,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:26,124 INFO L124 PetriNetUnfolderBase]: 6095/18566 cut-off events. [2023-11-28 23:42:26,124 INFO L125 PetriNetUnfolderBase]: For 53553/54007 co-relation queries the response was YES. [2023-11-28 23:42:26,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68905 conditions, 18566 events. 6095/18566 cut-off events. For 53553/54007 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 167292 event pairs, 821 based on Foata normal form. 90/17873 useless extension candidates. Maximal degree in co-relation 68716. Up to 3458 conditions per place. [2023-11-28 23:42:26,267 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1368 selfloop transitions, 229 changer transitions 0/1816 dead transitions. [2023-11-28 23:42:26,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1816 transitions, 19495 flow [2023-11-28 23:42:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:42:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:42:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3765 transitions. [2023-11-28 23:42:26,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6543274244004171 [2023-11-28 23:42:26,275 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3765 transitions. [2023-11-28 23:42:26,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3765 transitions. [2023-11-28 23:42:26,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:26,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3765 transitions. [2023-11-28 23:42:26,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 179.28571428571428) internal successors, (3765), 21 states have internal predecessors, (3765), 0 states have call successors, (0), 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 23:42:26,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 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 23:42:26,292 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 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 23:42:26,292 INFO L175 Difference]: Start difference. First operand has 410 places, 1153 transitions, 10272 flow. Second operand 21 states and 3765 transitions. [2023-11-28 23:42:26,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1816 transitions, 19495 flow [2023-11-28 23:42:26,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1816 transitions, 19043 flow, removed 48 selfloop flow, removed 9 redundant places. [2023-11-28 23:42:26,693 INFO L231 Difference]: Finished difference. Result has 435 places, 1256 transitions, 12396 flow [2023-11-28 23:42:26,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=10008, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12396, PETRI_PLACES=435, PETRI_TRANSITIONS=1256} [2023-11-28 23:42:26,695 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 160 predicate places. [2023-11-28 23:42:26,695 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 1256 transitions, 12396 flow [2023-11-28 23:42:26,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:26,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:26,696 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] [2023-11-28 23:42:26,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:42:26,696 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:42:26,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash -207563042, now seen corresponding path program 5 times [2023-11-28 23:42:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:26,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897351535] [2023-11-28 23:42:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:27,407 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 23:42:27,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:27,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897351535] [2023-11-28 23:42:27,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897351535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:27,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:27,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:27,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695228074] [2023-11-28 23:42:27,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:27,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:27,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:27,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:27,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:29,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:29,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 1256 transitions, 12396 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:29,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:29,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:29,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:36,635 INFO L124 PetriNetUnfolderBase]: 6207/18864 cut-off events. [2023-11-28 23:42:36,636 INFO L125 PetriNetUnfolderBase]: For 62624/63051 co-relation queries the response was YES. [2023-11-28 23:42:36,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72887 conditions, 18864 events. 6207/18864 cut-off events. For 62624/63051 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 169532 event pairs, 1218 based on Foata normal form. 140/18165 useless extension candidates. Maximal degree in co-relation 72684. Up to 6114 conditions per place. [2023-11-28 23:42:36,808 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1067 selfloop transitions, 435 changer transitions 1/1722 dead transitions. [2023-11-28 23:42:36,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 1722 transitions, 19441 flow [2023-11-28 23:42:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:42:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:42:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3444 transitions. [2023-11-28 23:42:36,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6982968369829684 [2023-11-28 23:42:36,812 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3444 transitions. [2023-11-28 23:42:36,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3444 transitions. [2023-11-28 23:42:36,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:36,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3444 transitions. [2023-11-28 23:42:36,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 191.33333333333334) internal successors, (3444), 18 states have internal predecessors, (3444), 0 states have call successors, (0), 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 23:42:36,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:42:36,823 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:42:36,823 INFO L175 Difference]: Start difference. First operand has 435 places, 1256 transitions, 12396 flow. Second operand 18 states and 3444 transitions. [2023-11-28 23:42:36,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 1722 transitions, 19441 flow [2023-11-28 23:42:37,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1722 transitions, 19108 flow, removed 84 selfloop flow, removed 6 redundant places. [2023-11-28 23:42:37,278 INFO L231 Difference]: Finished difference. Result has 456 places, 1336 transitions, 15139 flow [2023-11-28 23:42:37,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=12157, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15139, PETRI_PLACES=456, PETRI_TRANSITIONS=1336} [2023-11-28 23:42:37,280 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 181 predicate places. [2023-11-28 23:42:37,280 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1336 transitions, 15139 flow [2023-11-28 23:42:37,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:37,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:37,281 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] [2023-11-28 23:42:37,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:42:37,281 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:42:37,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:37,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1712713634, now seen corresponding path program 6 times [2023-11-28 23:42:37,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:37,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533306544] [2023-11-28 23:42:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:37,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:37,987 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 23:42:37,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:37,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533306544] [2023-11-28 23:42:37,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533306544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:37,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:37,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588762053] [2023-11-28 23:42:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:37,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:37,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:40,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:40,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1336 transitions, 15139 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:40,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:40,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:40,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:48,513 INFO L124 PetriNetUnfolderBase]: 7250/21928 cut-off events. [2023-11-28 23:42:48,513 INFO L125 PetriNetUnfolderBase]: For 94845/95304 co-relation queries the response was YES. [2023-11-28 23:42:48,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88558 conditions, 21928 events. 7250/21928 cut-off events. For 94845/95304 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 203969 event pairs, 1169 based on Foata normal form. 94/21120 useless extension candidates. Maximal degree in co-relation 88345. Up to 7445 conditions per place. [2023-11-28 23:42:48,731 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1463 selfloop transitions, 292 changer transitions 0/1974 dead transitions. [2023-11-28 23:42:48,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1974 transitions, 24967 flow [2023-11-28 23:42:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:42:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:42:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3751 transitions. [2023-11-28 23:42:48,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518943343760862 [2023-11-28 23:42:48,736 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3751 transitions. [2023-11-28 23:42:48,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3751 transitions. [2023-11-28 23:42:48,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:48,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3751 transitions. [2023-11-28 23:42:48,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 178.61904761904762) internal successors, (3751), 21 states have internal predecessors, (3751), 0 states have call successors, (0), 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 23:42:48,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 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 23:42:48,748 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 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 23:42:48,748 INFO L175 Difference]: Start difference. First operand has 456 places, 1336 transitions, 15139 flow. Second operand 21 states and 3751 transitions. [2023-11-28 23:42:48,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1974 transitions, 24967 flow [2023-11-28 23:42:49,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1974 transitions, 24475 flow, removed 131 selfloop flow, removed 7 redundant places. [2023-11-28 23:42:49,582 INFO L231 Difference]: Finished difference. Result has 482 places, 1436 transitions, 17715 flow [2023-11-28 23:42:49,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=14808, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=17715, PETRI_PLACES=482, PETRI_TRANSITIONS=1436} [2023-11-28 23:42:49,584 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 207 predicate places. [2023-11-28 23:42:49,584 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 1436 transitions, 17715 flow [2023-11-28 23:42:49,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:49,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:49,585 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] [2023-11-28 23:42:49,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:42:49,585 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:42:49,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash 752487260, now seen corresponding path program 7 times [2023-11-28 23:42:49,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:49,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012618744] [2023-11-28 23:42:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:49,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:50,203 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 23:42:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:50,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012618744] [2023-11-28 23:42:50,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012618744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:50,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:50,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:42:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423617722] [2023-11-28 23:42:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:50,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:42:50,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:50,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:42:50,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:42:52,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:42:52,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1436 transitions, 17715 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:42:52,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:52,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:42:52,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:02,110 INFO L124 PetriNetUnfolderBase]: 7257/21947 cut-off events. [2023-11-28 23:43:02,110 INFO L125 PetriNetUnfolderBase]: For 108298/108664 co-relation queries the response was YES. [2023-11-28 23:43:02,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92298 conditions, 21947 events. 7257/21947 cut-off events. For 108298/108664 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 204840 event pairs, 888 based on Foata normal form. 83/21188 useless extension candidates. Maximal degree in co-relation 92072. Up to 7083 conditions per place. [2023-11-28 23:43:02,311 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1143 selfloop transitions, 519 changer transitions 1/1882 dead transitions. [2023-11-28 23:43:02,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1882 transitions, 25515 flow [2023-11-28 23:43:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:43:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:43:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3396 transitions. [2023-11-28 23:43:02,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6885644768856448 [2023-11-28 23:43:02,315 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3396 transitions. [2023-11-28 23:43:02,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3396 transitions. [2023-11-28 23:43:02,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:02,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3396 transitions. [2023-11-28 23:43:02,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 188.66666666666666) internal successors, (3396), 18 states have internal predecessors, (3396), 0 states have call successors, (0), 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 23:43:02,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:43:02,322 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:43:02,322 INFO L175 Difference]: Start difference. First operand has 482 places, 1436 transitions, 17715 flow. Second operand 18 states and 3396 transitions. [2023-11-28 23:43:02,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1882 transitions, 25515 flow [2023-11-28 23:43:03,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1882 transitions, 24896 flow, removed 214 selfloop flow, removed 6 redundant places. [2023-11-28 23:43:03,197 INFO L231 Difference]: Finished difference. Result has 504 places, 1500 transitions, 20700 flow [2023-11-28 23:43:03,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=17242, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=458, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20700, PETRI_PLACES=504, PETRI_TRANSITIONS=1500} [2023-11-28 23:43:03,199 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 229 predicate places. [2023-11-28 23:43:03,199 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 1500 transitions, 20700 flow [2023-11-28 23:43:03,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:03,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:03,200 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] [2023-11-28 23:43:03,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:43:03,200 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:43:03,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash 153034462, now seen corresponding path program 8 times [2023-11-28 23:43:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:03,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195270223] [2023-11-28 23:43:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:03,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:03,634 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 23:43:03,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195270223] [2023-11-28 23:43:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195270223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:03,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:03,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:43:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570933959] [2023-11-28 23:43:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:03,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:43:03,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:43:03,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:43:05,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:43:05,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 1500 transitions, 20700 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:05,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:05,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:43:05,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:16,430 INFO L124 PetriNetUnfolderBase]: 8326/25067 cut-off events. [2023-11-28 23:43:16,431 INFO L125 PetriNetUnfolderBase]: For 151849/152439 co-relation queries the response was YES. [2023-11-28 23:43:16,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108863 conditions, 25067 events. 8326/25067 cut-off events. For 151849/152439 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 238569 event pairs, 2412 based on Foata normal form. 91/24063 useless extension candidates. Maximal degree in co-relation 108626. Up to 12423 conditions per place. [2023-11-28 23:43:16,714 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1473 selfloop transitions, 338 changer transitions 0/2030 dead transitions. [2023-11-28 23:43:16,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 2030 transitions, 30068 flow [2023-11-28 23:43:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:43:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:43:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3192 transitions. [2023-11-28 23:43:16,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6472019464720195 [2023-11-28 23:43:16,718 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3192 transitions. [2023-11-28 23:43:16,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3192 transitions. [2023-11-28 23:43:16,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:16,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3192 transitions. [2023-11-28 23:43:16,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 177.33333333333334) internal successors, (3192), 18 states have internal predecessors, (3192), 0 states have call successors, (0), 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 23:43:16,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:43:16,726 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:43:16,727 INFO L175 Difference]: Start difference. First operand has 504 places, 1500 transitions, 20700 flow. Second operand 18 states and 3192 transitions. [2023-11-28 23:43:16,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 2030 transitions, 30068 flow [2023-11-28 23:43:17,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2030 transitions, 29796 flow, removed 72 selfloop flow, removed 6 redundant places. [2023-11-28 23:43:18,011 INFO L231 Difference]: Finished difference. Result has 530 places, 1598 transitions, 23993 flow [2023-11-28 23:43:18,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=20466, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=23993, PETRI_PLACES=530, PETRI_TRANSITIONS=1598} [2023-11-28 23:43:18,013 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 255 predicate places. [2023-11-28 23:43:18,013 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 1598 transitions, 23993 flow [2023-11-28 23:43:18,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:18,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:18,014 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] [2023-11-28 23:43:18,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:43:18,014 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:43:18,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1430491554, now seen corresponding path program 9 times [2023-11-28 23:43:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927884350] [2023-11-28 23:43:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:18,594 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 23:43:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927884350] [2023-11-28 23:43:18,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927884350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:18,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:18,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:43:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998955798] [2023-11-28 23:43:18,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:18,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:43:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:43:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:43:20,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:43:20,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 1598 transitions, 23993 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:20,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:20,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:43:20,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:38,036 INFO L124 PetriNetUnfolderBase]: 13171/38314 cut-off events. [2023-11-28 23:43:38,036 INFO L125 PetriNetUnfolderBase]: For 343001/343877 co-relation queries the response was YES. [2023-11-28 23:43:38,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188138 conditions, 38314 events. 13171/38314 cut-off events. For 343001/343877 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 395415 event pairs, 1312 based on Foata normal form. 247/37273 useless extension candidates. Maximal degree in co-relation 187887. Up to 12960 conditions per place. [2023-11-28 23:43:38,577 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2726 selfloop transitions, 547 changer transitions 1/3493 dead transitions. [2023-11-28 23:43:38,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 3493 transitions, 57940 flow [2023-11-28 23:43:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-28 23:43:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-28 23:43:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5363 transitions. [2023-11-28 23:43:38,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6749307827837906 [2023-11-28 23:43:38,582 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 5363 transitions. [2023-11-28 23:43:38,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 5363 transitions. [2023-11-28 23:43:38,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:38,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 5363 transitions. [2023-11-28 23:43:38,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 184.93103448275863) internal successors, (5363), 29 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 23:43:38,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 274.0) internal successors, (8220), 30 states have internal predecessors, (8220), 0 states have call successors, (0), 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 23:43:38,595 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 274.0) internal successors, (8220), 30 states have internal predecessors, (8220), 0 states have call successors, (0), 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 23:43:38,595 INFO L175 Difference]: Start difference. First operand has 530 places, 1598 transitions, 23993 flow. Second operand 29 states and 5363 transitions. [2023-11-28 23:43:38,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 3493 transitions, 57940 flow [2023-11-28 23:43:42,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 3493 transitions, 57326 flow, removed 285 selfloop flow, removed 1 redundant places. [2023-11-28 23:43:42,300 INFO L231 Difference]: Finished difference. Result has 578 places, 1842 transitions, 32968 flow [2023-11-28 23:43:42,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=23447, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=32968, PETRI_PLACES=578, PETRI_TRANSITIONS=1842} [2023-11-28 23:43:42,302 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 303 predicate places. [2023-11-28 23:43:42,302 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 1842 transitions, 32968 flow [2023-11-28 23:43:42,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:42,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:42,303 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] [2023-11-28 23:43:42,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:43:42,303 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:43:42,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:42,303 INFO L85 PathProgramCache]: Analyzing trace with hash -976513092, now seen corresponding path program 10 times [2023-11-28 23:43:42,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:42,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405571551] [2023-11-28 23:43:42,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:42,905 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 23:43:42,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405571551] [2023-11-28 23:43:42,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405571551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:42,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:43:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079150428] [2023-11-28 23:43:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:42,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:43:42,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:43:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:43:45,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:43:45,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 1842 transitions, 32968 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:43:45,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:45,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:43:45,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:05,338 INFO L124 PetriNetUnfolderBase]: 14241/41473 cut-off events. [2023-11-28 23:44:05,338 INFO L125 PetriNetUnfolderBase]: For 448954/450326 co-relation queries the response was YES. [2023-11-28 23:44:05,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210572 conditions, 41473 events. 14241/41473 cut-off events. For 448954/450326 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 433290 event pairs, 3740 based on Foata normal form. 174/40116 useless extension candidates. Maximal degree in co-relation 210299. Up to 21380 conditions per place. [2023-11-28 23:44:06,003 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 1649 selfloop transitions, 511 changer transitions 0/2379 dead transitions. [2023-11-28 23:44:06,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 2379 transitions, 43542 flow [2023-11-28 23:44:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:44:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-28 23:44:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3049 transitions. [2023-11-28 23:44:06,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.654572778016316 [2023-11-28 23:44:06,007 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3049 transitions. [2023-11-28 23:44:06,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3049 transitions. [2023-11-28 23:44:06,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:06,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3049 transitions. [2023-11-28 23:44:06,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 179.35294117647058) internal successors, (3049), 17 states have internal predecessors, (3049), 0 states have call successors, (0), 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 23:44:06,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 274.0) internal successors, (4932), 18 states have internal predecessors, (4932), 0 states have call successors, (0), 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 23:44:06,142 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 274.0) internal successors, (4932), 18 states have internal predecessors, (4932), 0 states have call successors, (0), 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 23:44:06,142 INFO L175 Difference]: Start difference. First operand has 578 places, 1842 transitions, 32968 flow. Second operand 17 states and 3049 transitions. [2023-11-28 23:44:06,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 2379 transitions, 43542 flow [2023-11-28 23:44:11,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 2379 transitions, 42819 flow, removed 322 selfloop flow, removed 4 redundant places. [2023-11-28 23:44:11,180 INFO L231 Difference]: Finished difference. Result has 605 places, 1939 transitions, 37062 flow [2023-11-28 23:44:11,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=32264, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1842, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=37062, PETRI_PLACES=605, PETRI_TRANSITIONS=1939} [2023-11-28 23:44:11,182 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 330 predicate places. [2023-11-28 23:44:11,182 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 1939 transitions, 37062 flow [2023-11-28 23:44:11,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:44:11,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:11,183 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] [2023-11-28 23:44:11,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:44:11,183 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:44:11,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:11,183 INFO L85 PathProgramCache]: Analyzing trace with hash 819006242, now seen corresponding path program 11 times [2023-11-28 23:44:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167283782] [2023-11-28 23:44:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:11,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:11,681 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 23:44:11,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:11,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167283782] [2023-11-28 23:44:11,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167283782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:11,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:11,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:44:11,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240839738] [2023-11-28 23:44:11,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:11,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:44:11,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:11,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:44:11,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:44:13,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:44:13,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 1939 transitions, 37062 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:44:13,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:13,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:44:13,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:37,329 INFO L124 PetriNetUnfolderBase]: 15204/43931 cut-off events. [2023-11-28 23:44:37,329 INFO L125 PetriNetUnfolderBase]: For 584239/585562 co-relation queries the response was YES. [2023-11-28 23:44:37,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237002 conditions, 43931 events. 15204/43931 cut-off events. For 584239/585562 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 464267 event pairs, 2023 based on Foata normal form. 229/42693 useless extension candidates. Maximal degree in co-relation 236715. Up to 22283 conditions per place. [2023-11-28 23:44:38,044 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 1856 selfloop transitions, 622 changer transitions 1/2698 dead transitions. [2023-11-28 23:44:38,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 2698 transitions, 53878 flow [2023-11-28 23:44:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:44:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-28 23:44:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4334 transitions. [2023-11-28 23:44:38,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6590632603406326 [2023-11-28 23:44:38,050 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4334 transitions. [2023-11-28 23:44:38,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4334 transitions. [2023-11-28 23:44:38,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:38,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4334 transitions. [2023-11-28 23:44:38,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 180.58333333333334) internal successors, (4334), 24 states have internal predecessors, (4334), 0 states have call successors, (0), 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 23:44:38,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 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 23:44:38,061 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 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 23:44:38,061 INFO L175 Difference]: Start difference. First operand has 605 places, 1939 transitions, 37062 flow. Second operand 24 states and 4334 transitions. [2023-11-28 23:44:38,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 2698 transitions, 53878 flow [2023-11-28 23:44:45,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 627 places, 2698 transitions, 52863 flow, removed 505 selfloop flow, removed 1 redundant places. [2023-11-28 23:44:45,603 INFO L231 Difference]: Finished difference. Result has 641 places, 2077 transitions, 42646 flow [2023-11-28 23:44:45,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=36155, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=496, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=42646, PETRI_PLACES=641, PETRI_TRANSITIONS=2077} [2023-11-28 23:44:45,605 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 366 predicate places. [2023-11-28 23:44:45,605 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 2077 transitions, 42646 flow [2023-11-28 23:44:45,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:44:45,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:45,606 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] [2023-11-28 23:44:45,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:44:45,606 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:44:45,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:45,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1981202830, now seen corresponding path program 12 times [2023-11-28 23:44:45,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:45,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873735206] [2023-11-28 23:44:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:45,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:46,016 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 23:44:46,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:46,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873735206] [2023-11-28 23:44:46,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873735206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:46,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:46,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:44:46,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198086300] [2023-11-28 23:44:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:46,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:44:46,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:44:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:44:47,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:44:47,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 2077 transitions, 42646 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:44:47,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:47,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:44:47,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:15,000 INFO L124 PetriNetUnfolderBase]: 16508/47729 cut-off events. [2023-11-28 23:45:15,001 INFO L125 PetriNetUnfolderBase]: For 736378/738293 co-relation queries the response was YES. [2023-11-28 23:45:15,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264893 conditions, 47729 events. 16508/47729 cut-off events. For 736378/738293 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 511440 event pairs, 3738 based on Foata normal form. 270/46307 useless extension candidates. Maximal degree in co-relation 264592. Up to 22961 conditions per place. [2023-11-28 23:45:15,862 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 1841 selfloop transitions, 654 changer transitions 0/2714 dead transitions. [2023-11-28 23:45:15,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 2714 transitions, 57090 flow [2023-11-28 23:45:15,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:45:15,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:45:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3258 transitions. [2023-11-28 23:45:15,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6605839416058394 [2023-11-28 23:45:15,866 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3258 transitions. [2023-11-28 23:45:15,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3258 transitions. [2023-11-28 23:45:15,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:15,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3258 transitions. [2023-11-28 23:45:15,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 181.0) internal successors, (3258), 18 states have internal predecessors, (3258), 0 states have call successors, (0), 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 23:45:15,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:45:15,873 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:45:15,873 INFO L175 Difference]: Start difference. First operand has 641 places, 2077 transitions, 42646 flow. Second operand 18 states and 3258 transitions. [2023-11-28 23:45:15,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 2714 transitions, 57090 flow [2023-11-28 23:45:25,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 2714 transitions, 56031 flow, removed 487 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:25,551 INFO L231 Difference]: Finished difference. Result has 665 places, 2216 transitions, 48824 flow [2023-11-28 23:45:25,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=41597, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=535, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=48824, PETRI_PLACES=665, PETRI_TRANSITIONS=2216} [2023-11-28 23:45:25,553 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 390 predicate places. [2023-11-28 23:45:25,553 INFO L495 AbstractCegarLoop]: Abstraction has has 665 places, 2216 transitions, 48824 flow [2023-11-28 23:45:25,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:45:25,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:25,554 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] [2023-11-28 23:45:25,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:45:25,554 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:45:25,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash -369986638, now seen corresponding path program 13 times [2023-11-28 23:45:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:25,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340290934] [2023-11-28 23:45:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:25,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:26,015 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 23:45:26,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340290934] [2023-11-28 23:45:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340290934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:45:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002323029] [2023-11-28 23:45:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:26,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:45:26,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:26,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:45:26,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:45:28,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:45:28,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 665 places, 2216 transitions, 48824 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:45:28,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:28,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:45:28,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:59,936 INFO L124 PetriNetUnfolderBase]: 17614/50240 cut-off events. [2023-11-28 23:45:59,936 INFO L125 PetriNetUnfolderBase]: For 941200/942663 co-relation queries the response was YES. [2023-11-28 23:46:00,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296051 conditions, 50240 events. 17614/50240 cut-off events. For 941200/942663 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 541717 event pairs, 2803 based on Foata normal form. 292/48858 useless extension candidates. Maximal degree in co-relation 295739. Up to 13253 conditions per place. [2023-11-28 23:46:01,051 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2053 selfloop transitions, 733 changer transitions 1/3006 dead transitions. [2023-11-28 23:46:01,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 3006 transitions, 67564 flow [2023-11-28 23:46:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:46:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-28 23:46:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4196 transitions. [2023-11-28 23:46:01,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6658203744842907 [2023-11-28 23:46:01,057 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4196 transitions. [2023-11-28 23:46:01,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4196 transitions. [2023-11-28 23:46:01,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:46:01,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4196 transitions. [2023-11-28 23:46:01,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 182.43478260869566) internal successors, (4196), 23 states have internal predecessors, (4196), 0 states have call successors, (0), 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 23:46:01,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:46:01,065 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:46:01,065 INFO L175 Difference]: Start difference. First operand has 665 places, 2216 transitions, 48824 flow. Second operand 23 states and 4196 transitions. [2023-11-28 23:46:01,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 3006 transitions, 67564 flow [2023-11-28 23:46:13,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 3006 transitions, 66695 flow, removed 406 selfloop flow, removed 4 redundant places. [2023-11-28 23:46:14,063 INFO L231 Difference]: Finished difference. Result has 697 places, 2352 transitions, 55949 flow [2023-11-28 23:46:14,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=47967, PETRI_DIFFERENCE_MINUEND_PLACES=661, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=610, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=55949, PETRI_PLACES=697, PETRI_TRANSITIONS=2352} [2023-11-28 23:46:14,065 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 422 predicate places. [2023-11-28 23:46:14,066 INFO L495 AbstractCegarLoop]: Abstraction has has 697 places, 2352 transitions, 55949 flow [2023-11-28 23:46:14,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:46:14,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:46:14,066 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] [2023-11-28 23:46:14,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:46:14,066 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:46:14,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash 636844696, now seen corresponding path program 14 times [2023-11-28 23:46:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:14,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797093733] [2023-11-28 23:46:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:14,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:14,521 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 23:46:14,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:14,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797093733] [2023-11-28 23:46:14,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797093733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:14,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:46:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475334393] [2023-11-28 23:46:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:14,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:46:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:46:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:46:16,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:46:16,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 697 places, 2352 transitions, 55949 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:46:16,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:46:16,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:46:16,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:46:58,146 INFO L124 PetriNetUnfolderBase]: 20507/58843 cut-off events. [2023-11-28 23:46:58,146 INFO L125 PetriNetUnfolderBase]: For 1239884/1242078 co-relation queries the response was YES. [2023-11-28 23:46:59,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354201 conditions, 58843 events. 20507/58843 cut-off events. For 1239884/1242078 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 652285 event pairs, 4075 based on Foata normal form. 324/57175 useless extension candidates. Maximal degree in co-relation 353874. Up to 24525 conditions per place. [2023-11-28 23:46:59,467 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2681 selfloop transitions, 748 changer transitions 0/3648 dead transitions. [2023-11-28 23:46:59,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 719 places, 3648 transitions, 81610 flow [2023-11-28 23:46:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:46:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-28 23:46:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4201 transitions. [2023-11-28 23:46:59,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666137734052682 [2023-11-28 23:46:59,471 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4201 transitions. [2023-11-28 23:46:59,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4201 transitions. [2023-11-28 23:46:59,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:46:59,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4201 transitions. [2023-11-28 23:46:59,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 182.65217391304347) internal successors, (4201), 23 states have internal predecessors, (4201), 0 states have call successors, (0), 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 23:46:59,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:46:59,480 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:46:59,480 INFO L175 Difference]: Start difference. First operand has 697 places, 2352 transitions, 55949 flow. Second operand 23 states and 4201 transitions. [2023-11-28 23:46:59,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 719 places, 3648 transitions, 81610 flow [2023-11-28 23:47:18,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 3648 transitions, 80158 flow, removed 630 selfloop flow, removed 6 redundant places. [2023-11-28 23:47:18,610 INFO L231 Difference]: Finished difference. Result has 730 places, 2503 transitions, 62754 flow [2023-11-28 23:47:18,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=54566, PETRI_DIFFERENCE_MINUEND_PLACES=691, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=620, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=62754, PETRI_PLACES=730, PETRI_TRANSITIONS=2503} [2023-11-28 23:47:18,613 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 455 predicate places. [2023-11-28 23:47:18,613 INFO L495 AbstractCegarLoop]: Abstraction has has 730 places, 2503 transitions, 62754 flow [2023-11-28 23:47:18,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:47:18,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:47:18,613 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] [2023-11-28 23:47:18,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:47:18,613 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:47:18,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:18,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1277646590, now seen corresponding path program 15 times [2023-11-28 23:47:18,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:18,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727174388] [2023-11-28 23:47:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:19,023 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 23:47:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:19,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727174388] [2023-11-28 23:47:19,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727174388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:19,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:19,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:47:19,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604126079] [2023-11-28 23:47:19,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:47:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:47:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:47:20,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:47:20,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 2503 transitions, 62754 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:47:20,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:47:20,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:47:20,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:48:08,404 INFO L124 PetriNetUnfolderBase]: 22346/63550 cut-off events. [2023-11-28 23:48:08,404 INFO L125 PetriNetUnfolderBase]: For 1601744/1604018 co-relation queries the response was YES. [2023-11-28 23:48:09,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405498 conditions, 63550 events. 22346/63550 cut-off events. For 1601744/1604018 co-relation queries the response was YES. Maximal size of possible extension queue 963. Compared 713956 event pairs, 3502 based on Foata normal form. 464/61968 useless extension candidates. Maximal degree in co-relation 405154. Up to 15354 conditions per place. [2023-11-28 23:48:10,146 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2441 selfloop transitions, 932 changer transitions 1/3593 dead transitions. [2023-11-28 23:48:10,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 752 places, 3593 transitions, 90935 flow [2023-11-28 23:48:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:48:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-28 23:48:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4244 transitions. [2023-11-28 23:48:10,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6734370041256744 [2023-11-28 23:48:10,150 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4244 transitions. [2023-11-28 23:48:10,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4244 transitions. [2023-11-28 23:48:10,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:48:10,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4244 transitions. [2023-11-28 23:48:10,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 184.52173913043478) internal successors, (4244), 23 states have internal predecessors, (4244), 0 states have call successors, (0), 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 23:48:10,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:48:10,158 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 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 23:48:10,158 INFO L175 Difference]: Start difference. First operand has 730 places, 2503 transitions, 62754 flow. Second operand 23 states and 4244 transitions. [2023-11-28 23:48:10,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 752 places, 3593 transitions, 90935 flow [2023-11-28 23:48:35,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 749 places, 3593 transitions, 89498 flow, removed 695 selfloop flow, removed 3 redundant places. [2023-11-28 23:48:35,711 INFO L231 Difference]: Finished difference. Result has 760 places, 2664 transitions, 71341 flow [2023-11-28 23:48:35,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=61361, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=795, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=71341, PETRI_PLACES=760, PETRI_TRANSITIONS=2664} [2023-11-28 23:48:35,713 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 485 predicate places. [2023-11-28 23:48:35,713 INFO L495 AbstractCegarLoop]: Abstraction has has 760 places, 2664 transitions, 71341 flow [2023-11-28 23:48:35,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:48:35,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:48:35,713 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] [2023-11-28 23:48:35,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 23:48:35,713 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:48:35,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash -124746978, now seen corresponding path program 16 times [2023-11-28 23:48:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:35,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820865663] [2023-11-28 23:48:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:36,119 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 23:48:36,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:36,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820865663] [2023-11-28 23:48:36,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820865663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:36,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:36,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:48:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6551447] [2023-11-28 23:48:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:36,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:48:36,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:48:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:48:38,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:48:38,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 2664 transitions, 71341 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:48:38,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:48:38,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:48:38,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:49:34,675 INFO L124 PetriNetUnfolderBase]: 25356/72578 cut-off events. [2023-11-28 23:49:34,675 INFO L125 PetriNetUnfolderBase]: For 1974587/1977552 co-relation queries the response was YES. [2023-11-28 23:49:36,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466915 conditions, 72578 events. 25356/72578 cut-off events. For 1974587/1977552 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 834117 event pairs, 5890 based on Foata normal form. 416/70535 useless extension candidates. Maximal degree in co-relation 466559. Up to 35450 conditions per place. [2023-11-28 23:49:36,576 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2617 selfloop transitions, 902 changer transitions 0/3738 dead transitions. [2023-11-28 23:49:36,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 3738 transitions, 96359 flow [2023-11-28 23:49:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 23:49:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-28 23:49:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4678 transitions. [2023-11-28 23:49:36,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6566535654126895 [2023-11-28 23:49:36,580 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4678 transitions. [2023-11-28 23:49:36,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4678 transitions. [2023-11-28 23:49:36,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:49:36,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4678 transitions. [2023-11-28 23:49:36,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 179.92307692307693) internal successors, (4678), 26 states have internal predecessors, (4678), 0 states have call successors, (0), 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 23:49:36,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 274.0) internal successors, (7398), 27 states have internal predecessors, (7398), 0 states have call successors, (0), 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 23:49:36,588 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 274.0) internal successors, (7398), 27 states have internal predecessors, (7398), 0 states have call successors, (0), 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 23:49:36,588 INFO L175 Difference]: Start difference. First operand has 760 places, 2664 transitions, 71341 flow. Second operand 26 states and 4678 transitions. [2023-11-28 23:49:36,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 3738 transitions, 96359 flow [2023-11-28 23:50:10,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 3738 transitions, 94823 flow, removed 685 selfloop flow, removed 6 redundant places. [2023-11-28 23:50:10,862 INFO L231 Difference]: Finished difference. Result has 797 places, 2818 transitions, 78865 flow [2023-11-28 23:50:10,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=69820, PETRI_DIFFERENCE_MINUEND_PLACES=754, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=773, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=78865, PETRI_PLACES=797, PETRI_TRANSITIONS=2818} [2023-11-28 23:50:10,865 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 522 predicate places. [2023-11-28 23:50:10,865 INFO L495 AbstractCegarLoop]: Abstraction has has 797 places, 2818 transitions, 78865 flow [2023-11-28 23:50:10,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:50:10,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:50:10,865 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] [2023-11-28 23:50:10,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:50:10,865 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:50:10,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:50:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1321006522, now seen corresponding path program 17 times [2023-11-28 23:50:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:50:10,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259515033] [2023-11-28 23:50:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:50:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:50:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:50:11,266 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 23:50:11,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:50:11,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259515033] [2023-11-28 23:50:11,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259515033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:50:11,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:50:11,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:50:11,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574108973] [2023-11-28 23:50:11,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:50:11,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:50:11,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:50:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:50:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:50:13,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:50:13,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 797 places, 2818 transitions, 78865 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:50:13,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:50:13,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:50:13,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:51:16,006 INFO L124 PetriNetUnfolderBase]: 26332/74593 cut-off events. [2023-11-28 23:51:16,006 INFO L125 PetriNetUnfolderBase]: For 2324216/2326421 co-relation queries the response was YES. [2023-11-28 23:51:17,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500767 conditions, 74593 events. 26332/74593 cut-off events. For 2324216/2326421 co-relation queries the response was YES. Maximal size of possible extension queue 1105. Compared 860594 event pairs, 4088 based on Foata normal form. 442/72652 useless extension candidates. Maximal degree in co-relation 500394. Up to 17885 conditions per place. [2023-11-28 23:51:18,074 INFO L140 encePairwiseOnDemand]: 215/274 looper letters, 2797 selfloop transitions, 1029 changer transitions 1/4046 dead transitions. [2023-11-28 23:51:18,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 821 places, 4046 transitions, 109227 flow [2023-11-28 23:51:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-28 23:51:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-28 23:51:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4612 transitions. [2023-11-28 23:51:18,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6732846715328468 [2023-11-28 23:51:18,081 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4612 transitions. [2023-11-28 23:51:18,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4612 transitions. [2023-11-28 23:51:18,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:51:18,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4612 transitions. [2023-11-28 23:51:18,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 184.48) internal successors, (4612), 25 states have internal predecessors, (4612), 0 states have call successors, (0), 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 23:51:18,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 274.0) internal successors, (7124), 26 states have internal predecessors, (7124), 0 states have call successors, (0), 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 23:51:18,094 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 274.0) internal successors, (7124), 26 states have internal predecessors, (7124), 0 states have call successors, (0), 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 23:51:18,094 INFO L175 Difference]: Start difference. First operand has 797 places, 2818 transitions, 78865 flow. Second operand 25 states and 4612 transitions. [2023-11-28 23:51:18,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 821 places, 4046 transitions, 109227 flow [2023-11-28 23:52:00,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 4046 transitions, 107366 flow, removed 906 selfloop flow, removed 2 redundant places. [2023-11-28 23:52:00,096 INFO L231 Difference]: Finished difference. Result has 832 places, 2938 transitions, 85657 flow [2023-11-28 23:52:00,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=77100, PETRI_DIFFERENCE_MINUEND_PLACES=795, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=919, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=85657, PETRI_PLACES=832, PETRI_TRANSITIONS=2938} [2023-11-28 23:52:00,099 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 557 predicate places. [2023-11-28 23:52:00,099 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 2938 transitions, 85657 flow [2023-11-28 23:52:00,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:52:00,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:52:00,099 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] [2023-11-28 23:52:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:52:00,100 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:52:00,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash 501653318, now seen corresponding path program 18 times [2023-11-28 23:52:00,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:00,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623807145] [2023-11-28 23:52:00,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:00,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:00,639 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 23:52:00,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:00,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623807145] [2023-11-28 23:52:00,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623807145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:00,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:00,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:52:00,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683437307] [2023-11-28 23:52:00,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:00,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:52:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:00,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:52:00,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:52:02,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:52:02,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 2938 transitions, 85657 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:52:02,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:52:02,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:52:02,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:53:09,273 INFO L124 PetriNetUnfolderBase]: 26361/74786 cut-off events. [2023-11-28 23:53:09,273 INFO L125 PetriNetUnfolderBase]: For 2499648/2502027 co-relation queries the response was YES. [2023-11-28 23:53:11,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511274 conditions, 74786 events. 26361/74786 cut-off events. For 2499648/2502027 co-relation queries the response was YES. Maximal size of possible extension queue 1109. Compared 864280 event pairs, 3102 based on Foata normal form. 444/72916 useless extension candidates. Maximal degree in co-relation 510888. Up to 20903 conditions per place. [2023-11-28 23:53:11,814 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 2094 selfloop transitions, 1065 changer transitions 1/3379 dead transitions. [2023-11-28 23:53:11,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 3379 transitions, 99220 flow [2023-11-28 23:53:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:53:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-28 23:53:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3346 transitions. [2023-11-28 23:53:11,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6784266017842661 [2023-11-28 23:53:11,817 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3346 transitions. [2023-11-28 23:53:11,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3346 transitions. [2023-11-28 23:53:11,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:53:11,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3346 transitions. [2023-11-28 23:53:11,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 185.88888888888889) internal successors, (3346), 18 states have internal predecessors, (3346), 0 states have call successors, (0), 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 23:53:11,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:53:11,822 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 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 23:53:11,822 INFO L175 Difference]: Start difference. First operand has 832 places, 2938 transitions, 85657 flow. Second operand 18 states and 3346 transitions. [2023-11-28 23:53:11,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 3379 transitions, 99220 flow [2023-11-28 23:54:02,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 3379 transitions, 96822 flow, removed 787 selfloop flow, removed 9 redundant places. [2023-11-28 23:54:02,342 INFO L231 Difference]: Finished difference. Result has 850 places, 2997 transitions, 90270 flow [2023-11-28 23:54:02,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=83284, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1891, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=90270, PETRI_PLACES=850, PETRI_TRANSITIONS=2997} [2023-11-28 23:54:02,345 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, 575 predicate places. [2023-11-28 23:54:02,345 INFO L495 AbstractCegarLoop]: Abstraction has has 850 places, 2997 transitions, 90270 flow [2023-11-28 23:54:02,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:54:02,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:54:02,346 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] [2023-11-28 23:54:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 23:54:02,346 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-28 23:54:02,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2093529268, now seen corresponding path program 19 times [2023-11-28 23:54:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:02,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294680235] [2023-11-28 23:54:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:02,778 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 23:54:02,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:02,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294680235] [2023-11-28 23:54:02,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294680235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:02,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-28 23:54:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260147916] [2023-11-28 23:54:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:02,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:54:02,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:54:02,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:54:04,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 274 [2023-11-28 23:54:04,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 2997 transitions, 90270 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 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 23:54:04,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:54:04,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 274 [2023-11-28 23:54:04,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand