./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.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_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/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_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/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_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:19:18,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:19:18,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 00:19:18,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:19:18,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:19:18,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:19:18,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:19:18,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:19:18,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:19:18,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:19:18,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:19:18,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:19:18,879 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:19:18,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:19:18,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:19:18,880 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:19:18,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:19:18,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:19:18,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:19:18,882 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:19:18,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:19:18,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:19:18,884 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 00:19:18,884 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:19:18,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:19:18,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:19:18,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:19:18,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:19:18,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:19:18,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:19:18,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:18,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:19:18,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:19:18,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:19:18,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:19:18,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:19:18,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:19:18,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:19:18,890 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:19:18,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:19:18,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:19:18,890 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_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2023-11-29 00:19:19,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:19:19,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:19:19,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:19:19,121 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:19:19,122 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:19:19,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-29 00:19:21,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:19:22,148 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:19:22,149 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-29 00:19:22,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/data/6fc08bd28/b9cad387e6334c9c8f7651faa6507878/FLAGfb53702af [2023-11-29 00:19:22,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/data/6fc08bd28/b9cad387e6334c9c8f7651faa6507878 [2023-11-29 00:19:22,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:19:22,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:19:22,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:22,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:19:22,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:19:22,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@def7352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22, skipping insertion in model container [2023-11-29 00:19:22,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:19:22,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:22,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:19:22,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:22,873 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:19:22,874 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:19:22,881 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:19:22,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22 WrapperNode [2023-11-29 00:19:22,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:22,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:22,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:19:22,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:19:22,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,942 INFO L138 Inliner]: procedures = 246, calls = 48, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 186 [2023-11-29 00:19:22,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:22,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:19:22,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:19:22,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:19:22,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:22,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:23,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:19:23,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:19:23,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:19:23,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:19:23,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (1/1) ... [2023-11-29 00:19:23,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:23,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:19:23,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:19:23,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e81df2-9f48-4f43-b1d4-6e0b731d5fbb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:19:23,057 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-29 00:19:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:19:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 00:19:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 00:19:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:19:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:19:23,060 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:19:23,285 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:19:23,286 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:19:23,625 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:19:23,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:19:23,673 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:19:23,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:19:23 BoogieIcfgContainer [2023-11-29 00:19:23,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:19:23,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:19:23,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:19:23,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:19:23,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:19:22" (1/3) ... [2023-11-29 00:19:23,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685d9a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:19:23, skipping insertion in model container [2023-11-29 00:19:23,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:22" (2/3) ... [2023-11-29 00:19:23,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685d9a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:19:23, skipping insertion in model container [2023-11-29 00:19:23,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:19:23" (3/3) ... [2023-11-29 00:19:23,685 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-29 00:19:23,693 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:19:23,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:19:23,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-29 00:19:23,704 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:19:23,778 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 00:19:23,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 255 transitions, 524 flow [2023-11-29 00:19:23,938 INFO L124 PetriNetUnfolderBase]: 14/343 cut-off events. [2023-11-29 00:19:23,938 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 00:19:23,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 14/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 718 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 172. Up to 4 conditions per place. [2023-11-29 00:19:23,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 255 transitions, 524 flow [2023-11-29 00:19:23,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 252 transitions, 516 flow [2023-11-29 00:19:23,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:19:23,969 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;@703dfc9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:19:23,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-29 00:19:23,977 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:19:23,977 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-29 00:19:23,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:19:23,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:23,978 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] [2023-11-29 00:19:23,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:23,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:23,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1136384146, now seen corresponding path program 1 times [2023-11-29 00:19:23,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:23,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936300521] [2023-11-29 00:19:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:23,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:24,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:24,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936300521] [2023-11-29 00:19:24,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936300521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:24,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:24,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664811762] [2023-11-29 00:19:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:24,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:24,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:25,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 255 [2023-11-29 00:19:25,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 252 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:25,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:25,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 255 [2023-11-29 00:19:25,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:25,744 INFO L124 PetriNetUnfolderBase]: 532/1952 cut-off events. [2023-11-29 00:19:25,744 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-29 00:19:25,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2917 conditions, 1952 events. 532/1952 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13602 event pairs, 531 based on Foata normal form. 72/1863 useless extension candidates. Maximal degree in co-relation 2597. Up to 942 conditions per place. [2023-11-29 00:19:25,766 INFO L140 encePairwiseOnDemand]: 235/255 looper letters, 47 selfloop transitions, 5 changer transitions 6/225 dead transitions. [2023-11-29 00:19:25,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 566 flow [2023-11-29 00:19:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1171 transitions. [2023-11-29 00:19:25,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.765359477124183 [2023-11-29 00:19:25,786 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1171 transitions. [2023-11-29 00:19:25,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1171 transitions. [2023-11-29 00:19:25,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:25,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1171 transitions. [2023-11-29 00:19:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:25,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:25,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:25,810 INFO L175 Difference]: Start difference. First operand has 249 places, 252 transitions, 516 flow. Second operand 6 states and 1171 transitions. [2023-11-29 00:19:25,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 566 flow [2023-11-29 00:19:25,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:19:25,844 INFO L231 Difference]: Finished difference. Result has 231 places, 219 transitions, 452 flow [2023-11-29 00:19:25,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=231, PETRI_TRANSITIONS=219} [2023-11-29 00:19:25,849 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -18 predicate places. [2023-11-29 00:19:25,849 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 219 transitions, 452 flow [2023-11-29 00:19:25,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:25,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:25,851 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] [2023-11-29 00:19:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:19:25,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:25,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash -618305724, now seen corresponding path program 1 times [2023-11-29 00:19:25,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:25,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584249398] [2023-11-29 00:19:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:26,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:26,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584249398] [2023-11-29 00:19:26,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584249398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:26,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:26,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:26,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941074991] [2023-11-29 00:19:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:26,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:26,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:26,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:26,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:26,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 255 [2023-11-29 00:19:26,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 219 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:26,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:26,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 255 [2023-11-29 00:19:26,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:27,076 INFO L124 PetriNetUnfolderBase]: 532/1945 cut-off events. [2023-11-29 00:19:27,076 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 00:19:27,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 1945 events. 532/1945 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13645 event pairs, 531 based on Foata normal form. 0/1787 useless extension candidates. Maximal degree in co-relation 2857. Up to 942 conditions per place. [2023-11-29 00:19:27,090 INFO L140 encePairwiseOnDemand]: 249/255 looper letters, 47 selfloop transitions, 5 changer transitions 0/218 dead transitions. [2023-11-29 00:19:27,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 218 transitions, 554 flow [2023-11-29 00:19:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:27,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1157 transitions. [2023-11-29 00:19:27,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7562091503267974 [2023-11-29 00:19:27,095 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1157 transitions. [2023-11-29 00:19:27,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1157 transitions. [2023-11-29 00:19:27,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:27,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1157 transitions. [2023-11-29 00:19:27,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:27,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:27,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:27,106 INFO L175 Difference]: Start difference. First operand has 231 places, 219 transitions, 452 flow. Second operand 6 states and 1157 transitions. [2023-11-29 00:19:27,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 218 transitions, 554 flow [2023-11-29 00:19:27,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 544 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:19:27,113 INFO L231 Difference]: Finished difference. Result has 224 places, 218 transitions, 450 flow [2023-11-29 00:19:27,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=224, PETRI_TRANSITIONS=218} [2023-11-29 00:19:27,114 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -25 predicate places. [2023-11-29 00:19:27,114 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 218 transitions, 450 flow [2023-11-29 00:19:27,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:27,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:27,116 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] [2023-11-29 00:19:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:19:27,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:27,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash -707485567, now seen corresponding path program 1 times [2023-11-29 00:19:27,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664994273] [2023-11-29 00:19:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:27,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:27,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664994273] [2023-11-29 00:19:27,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664994273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:27,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:27,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:27,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144395656] [2023-11-29 00:19:27,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:27,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:27,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 255 [2023-11-29 00:19:27,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 218 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:27,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:27,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 255 [2023-11-29 00:19:27,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:28,641 INFO L124 PetriNetUnfolderBase]: 616/1982 cut-off events. [2023-11-29 00:19:28,641 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:19:28,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1982 events. 616/1982 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13043 event pairs, 417 based on Foata normal form. 0/1865 useless extension candidates. Maximal degree in co-relation 3016. Up to 985 conditions per place. [2023-11-29 00:19:28,653 INFO L140 encePairwiseOnDemand]: 242/255 looper letters, 45 selfloop transitions, 30 changer transitions 6/247 dead transitions. [2023-11-29 00:19:28,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 247 transitions, 664 flow [2023-11-29 00:19:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2023-11-29 00:19:28,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2023-11-29 00:19:28,658 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2023-11-29 00:19:28,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2023-11-29 00:19:28,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:28,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2023-11-29 00:19:28,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:28,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:28,668 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:28,669 INFO L175 Difference]: Start difference. First operand has 224 places, 218 transitions, 450 flow. Second operand 6 states and 1207 transitions. [2023-11-29 00:19:28,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 247 transitions, 664 flow [2023-11-29 00:19:28,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 247 transitions, 654 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:19:28,675 INFO L231 Difference]: Finished difference. Result has 229 places, 241 transitions, 630 flow [2023-11-29 00:19:28,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=229, PETRI_TRANSITIONS=241} [2023-11-29 00:19:28,676 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -20 predicate places. [2023-11-29 00:19:28,677 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 241 transitions, 630 flow [2023-11-29 00:19:28,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:28,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:28,678 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] [2023-11-29 00:19:28,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:19:28,678 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:28,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash 301830013, now seen corresponding path program 1 times [2023-11-29 00:19:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:28,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375529517] [2023-11-29 00:19:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:28,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:28,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375529517] [2023-11-29 00:19:28,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375529517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:28,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:28,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379857980] [2023-11-29 00:19:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:28,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:19:28,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:19:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:19:28,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 255 [2023-11-29 00:19:28,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 241 transitions, 630 flow. Second operand has 5 states, 5 states have (on average 217.6) internal successors, (1088), 5 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:28,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:28,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 255 [2023-11-29 00:19:28,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:29,210 INFO L124 PetriNetUnfolderBase]: 389/1556 cut-off events. [2023-11-29 00:19:29,210 INFO L125 PetriNetUnfolderBase]: For 414/476 co-relation queries the response was YES. [2023-11-29 00:19:29,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2896 conditions, 1556 events. 389/1556 cut-off events. For 414/476 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9423 event pairs, 204 based on Foata normal form. 1/1461 useless extension candidates. Maximal degree in co-relation 1776. Up to 498 conditions per place. [2023-11-29 00:19:29,223 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 42 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2023-11-29 00:19:29,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 244 transitions, 728 flow [2023-11-29 00:19:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:29,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2023-11-29 00:19:29,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8620915032679739 [2023-11-29 00:19:29,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1319 transitions. [2023-11-29 00:19:29,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1319 transitions. [2023-11-29 00:19:29,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:29,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1319 transitions. [2023-11-29 00:19:29,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:29,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:29,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:29,239 INFO L175 Difference]: Start difference. First operand has 229 places, 241 transitions, 630 flow. Second operand 6 states and 1319 transitions. [2023-11-29 00:19:29,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 244 transitions, 728 flow [2023-11-29 00:19:29,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 244 transitions, 728 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:19:29,248 INFO L231 Difference]: Finished difference. Result has 232 places, 244 transitions, 659 flow [2023-11-29 00:19:29,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=232, PETRI_TRANSITIONS=244} [2023-11-29 00:19:29,250 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -17 predicate places. [2023-11-29 00:19:29,250 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 244 transitions, 659 flow [2023-11-29 00:19:29,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 217.6) internal successors, (1088), 5 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:29,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:29,251 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] [2023-11-29 00:19:29,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:19:29,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:29,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash 943707870, now seen corresponding path program 1 times [2023-11-29 00:19:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145403897] [2023-11-29 00:19:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:29,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:29,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145403897] [2023-11-29 00:19:29,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145403897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:29,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:29,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:29,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775832056] [2023-11-29 00:19:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:29,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:29,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:30,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 255 [2023-11-29 00:19:30,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 244 transitions, 659 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:30,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:30,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 255 [2023-11-29 00:19:30,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:30,654 INFO L124 PetriNetUnfolderBase]: 781/2268 cut-off events. [2023-11-29 00:19:30,654 INFO L125 PetriNetUnfolderBase]: For 727/735 co-relation queries the response was YES. [2023-11-29 00:19:30,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 2268 events. 781/2268 cut-off events. For 727/735 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14788 event pairs, 414 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 4635. Up to 1119 conditions per place. [2023-11-29 00:19:30,668 INFO L140 encePairwiseOnDemand]: 242/255 looper letters, 68 selfloop transitions, 30 changer transitions 12/273 dead transitions. [2023-11-29 00:19:30,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 273 transitions, 963 flow [2023-11-29 00:19:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1204 transitions. [2023-11-29 00:19:30,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7869281045751634 [2023-11-29 00:19:30,673 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1204 transitions. [2023-11-29 00:19:30,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1204 transitions. [2023-11-29 00:19:30,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:30,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1204 transitions. [2023-11-29 00:19:30,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:30,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:30,680 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:30,680 INFO L175 Difference]: Start difference. First operand has 232 places, 244 transitions, 659 flow. Second operand 6 states and 1204 transitions. [2023-11-29 00:19:30,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 273 transitions, 963 flow [2023-11-29 00:19:30,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 273 transitions, 962 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:19:30,687 INFO L231 Difference]: Finished difference. Result has 241 places, 261 transitions, 884 flow [2023-11-29 00:19:30,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=241, PETRI_TRANSITIONS=261} [2023-11-29 00:19:30,689 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -8 predicate places. [2023-11-29 00:19:30,689 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 261 transitions, 884 flow [2023-11-29 00:19:30,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:30,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:30,690 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] [2023-11-29 00:19:30,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:19:30,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:30,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1726766291, now seen corresponding path program 1 times [2023-11-29 00:19:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140806253] [2023-11-29 00:19:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:31,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:31,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140806253] [2023-11-29 00:19:31,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140806253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:31,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:31,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453975899] [2023-11-29 00:19:31,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:31,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 255 [2023-11-29 00:19:31,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 261 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:31,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:31,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 255 [2023-11-29 00:19:31,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:32,093 INFO L124 PetriNetUnfolderBase]: 758/1931 cut-off events. [2023-11-29 00:19:32,093 INFO L125 PetriNetUnfolderBase]: For 1341/1507 co-relation queries the response was YES. [2023-11-29 00:19:32,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5476 conditions, 1931 events. 758/1931 cut-off events. For 1341/1507 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11722 event pairs, 224 based on Foata normal form. 1/1865 useless extension candidates. Maximal degree in co-relation 4563. Up to 1067 conditions per place. [2023-11-29 00:19:32,112 INFO L140 encePairwiseOnDemand]: 244/255 looper letters, 96 selfloop transitions, 22 changer transitions 0/292 dead transitions. [2023-11-29 00:19:32,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 292 transitions, 1284 flow [2023-11-29 00:19:32,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1289 transitions. [2023-11-29 00:19:32,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.842483660130719 [2023-11-29 00:19:32,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1289 transitions. [2023-11-29 00:19:32,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1289 transitions. [2023-11-29 00:19:32,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:32,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1289 transitions. [2023-11-29 00:19:32,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.83333333333334) internal successors, (1289), 6 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:32,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:32,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:32,126 INFO L175 Difference]: Start difference. First operand has 241 places, 261 transitions, 884 flow. Second operand 6 states and 1289 transitions. [2023-11-29 00:19:32,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 292 transitions, 1284 flow [2023-11-29 00:19:32,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 292 transitions, 1236 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-11-29 00:19:32,140 INFO L231 Difference]: Finished difference. Result has 239 places, 282 transitions, 1054 flow [2023-11-29 00:19:32,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1054, PETRI_PLACES=239, PETRI_TRANSITIONS=282} [2023-11-29 00:19:32,141 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -10 predicate places. [2023-11-29 00:19:32,141 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 282 transitions, 1054 flow [2023-11-29 00:19:32,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:32,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:32,142 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] [2023-11-29 00:19:32,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:19:32,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:32,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1134503052, now seen corresponding path program 1 times [2023-11-29 00:19:32,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:32,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071618522] [2023-11-29 00:19:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:32,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:32,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:32,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071618522] [2023-11-29 00:19:32,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071618522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:32,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:32,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:32,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287348964] [2023-11-29 00:19:32,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:32,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:19:32,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:32,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:19:32,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:19:33,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 255 [2023-11-29 00:19:33,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 282 transitions, 1054 flow. Second operand has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:33,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 255 [2023-11-29 00:19:33,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:33,704 INFO L124 PetriNetUnfolderBase]: 897/2479 cut-off events. [2023-11-29 00:19:33,704 INFO L125 PetriNetUnfolderBase]: For 2646/3179 co-relation queries the response was YES. [2023-11-29 00:19:33,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7152 conditions, 2479 events. 897/2479 cut-off events. For 2646/3179 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16505 event pairs, 254 based on Foata normal form. 0/2387 useless extension candidates. Maximal degree in co-relation 6108. Up to 1174 conditions per place. [2023-11-29 00:19:33,725 INFO L140 encePairwiseOnDemand]: 239/255 looper letters, 107 selfloop transitions, 27 changer transitions 0/310 dead transitions. [2023-11-29 00:19:33,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 310 transitions, 1512 flow [2023-11-29 00:19:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1249 transitions. [2023-11-29 00:19:33,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8163398692810457 [2023-11-29 00:19:33,730 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1249 transitions. [2023-11-29 00:19:33,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1249 transitions. [2023-11-29 00:19:33,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:33,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1249 transitions. [2023-11-29 00:19:33,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,738 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,738 INFO L175 Difference]: Start difference. First operand has 239 places, 282 transitions, 1054 flow. Second operand 6 states and 1249 transitions. [2023-11-29 00:19:33,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 310 transitions, 1512 flow [2023-11-29 00:19:33,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 310 transitions, 1512 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:19:33,748 INFO L231 Difference]: Finished difference. Result has 248 places, 302 transitions, 1324 flow [2023-11-29 00:19:33,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1324, PETRI_PLACES=248, PETRI_TRANSITIONS=302} [2023-11-29 00:19:33,749 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -1 predicate places. [2023-11-29 00:19:33,749 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 302 transitions, 1324 flow [2023-11-29 00:19:33,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:33,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:19:33,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:19:33,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:33,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:33,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1610423869, now seen corresponding path program 1 times [2023-11-29 00:19:33,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:33,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170056887] [2023-11-29 00:19:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:33,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:33,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170056887] [2023-11-29 00:19:33,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170056887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:33,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:33,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:19:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224055644] [2023-11-29 00:19:33,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:33,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:19:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:33,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:19:33,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:19:33,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 255 [2023-11-29 00:19:33,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 302 transitions, 1324 flow. Second operand has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:33,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:33,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 255 [2023-11-29 00:19:33,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:34,231 INFO L124 PetriNetUnfolderBase]: 285/1061 cut-off events. [2023-11-29 00:19:34,232 INFO L125 PetriNetUnfolderBase]: For 1745/1805 co-relation queries the response was YES. [2023-11-29 00:19:34,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3045 conditions, 1061 events. 285/1061 cut-off events. For 1745/1805 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5579 event pairs, 15 based on Foata normal form. 16/1056 useless extension candidates. Maximal degree in co-relation 2941. Up to 333 conditions per place. [2023-11-29 00:19:34,242 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 59 selfloop transitions, 4 changer transitions 3/245 dead transitions. [2023-11-29 00:19:34,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 245 transitions, 1104 flow [2023-11-29 00:19:34,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:19:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:19:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2023-11-29 00:19:34,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8745098039215686 [2023-11-29 00:19:34,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1338 transitions. [2023-11-29 00:19:34,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1338 transitions. [2023-11-29 00:19:34,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:34,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1338 transitions. [2023-11-29 00:19:34,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:34,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:34,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:34,257 INFO L175 Difference]: Start difference. First operand has 248 places, 302 transitions, 1324 flow. Second operand 6 states and 1338 transitions. [2023-11-29 00:19:34,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 245 transitions, 1104 flow [2023-11-29 00:19:34,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 245 transitions, 1032 flow, removed 3 selfloop flow, removed 24 redundant places. [2023-11-29 00:19:34,269 INFO L231 Difference]: Finished difference. Result has 227 places, 218 transitions, 703 flow [2023-11-29 00:19:34,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=703, PETRI_PLACES=227, PETRI_TRANSITIONS=218} [2023-11-29 00:19:34,270 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -22 predicate places. [2023-11-29 00:19:34,270 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 218 transitions, 703 flow [2023-11-29 00:19:34,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:34,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:34,271 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] [2023-11-29 00:19:34,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:19:34,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:34,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:34,272 INFO L85 PathProgramCache]: Analyzing trace with hash 530358917, now seen corresponding path program 1 times [2023-11-29 00:19:34,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:34,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649872240] [2023-11-29 00:19:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:35,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:35,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649872240] [2023-11-29 00:19:35,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649872240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:35,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:35,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:19:35,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994926638] [2023-11-29 00:19:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:35,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:19:35,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:19:35,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:19:39,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:19:39,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 218 transitions, 703 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:39,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:39,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:19:39,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:43,082 INFO L124 PetriNetUnfolderBase]: 1130/2763 cut-off events. [2023-11-29 00:19:43,082 INFO L125 PetriNetUnfolderBase]: For 3387/3392 co-relation queries the response was YES. [2023-11-29 00:19:43,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8234 conditions, 2763 events. 1130/2763 cut-off events. For 3387/3392 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16021 event pairs, 73 based on Foata normal form. 13/2737 useless extension candidates. Maximal degree in co-relation 7993. Up to 902 conditions per place. [2023-11-29 00:19:43,097 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 166 selfloop transitions, 89 changer transitions 0/400 dead transitions. [2023-11-29 00:19:43,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 400 transitions, 2120 flow [2023-11-29 00:19:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 00:19:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-29 00:19:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6072 transitions. [2023-11-29 00:19:43,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7441176470588236 [2023-11-29 00:19:43,112 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6072 transitions. [2023-11-29 00:19:43,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6072 transitions. [2023-11-29 00:19:43,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:43,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6072 transitions. [2023-11-29 00:19:43,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 189.75) internal successors, (6072), 32 states have internal predecessors, (6072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:43,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 255.0) internal successors, (8415), 33 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:43,145 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 255.0) internal successors, (8415), 33 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:43,146 INFO L175 Difference]: Start difference. First operand has 227 places, 218 transitions, 703 flow. Second operand 32 states and 6072 transitions. [2023-11-29 00:19:43,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 400 transitions, 2120 flow [2023-11-29 00:19:43,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 400 transitions, 2093 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-29 00:19:43,160 INFO L231 Difference]: Finished difference. Result has 265 places, 280 transitions, 1484 flow [2023-11-29 00:19:43,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1484, PETRI_PLACES=265, PETRI_TRANSITIONS=280} [2023-11-29 00:19:43,161 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 16 predicate places. [2023-11-29 00:19:43,161 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 280 transitions, 1484 flow [2023-11-29 00:19:43,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:43,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:43,163 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] [2023-11-29 00:19:43,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:19:43,163 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:43,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:43,163 INFO L85 PathProgramCache]: Analyzing trace with hash 917140271, now seen corresponding path program 2 times [2023-11-29 00:19:43,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:43,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992900975] [2023-11-29 00:19:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:43,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:43,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:43,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992900975] [2023-11-29 00:19:43,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992900975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:43,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:43,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-29 00:19:43,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828571204] [2023-11-29 00:19:43,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:43,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:19:43,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:43,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:19:43,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:19:47,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:19:47,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 280 transitions, 1484 flow. Second operand has 19 states, 19 states have (on average 183.78947368421052) internal successors, (3492), 19 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:47,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:47,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:19:47,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:50,112 INFO L124 PetriNetUnfolderBase]: 1259/3359 cut-off events. [2023-11-29 00:19:50,112 INFO L125 PetriNetUnfolderBase]: For 9197/9342 co-relation queries the response was YES. [2023-11-29 00:19:50,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12082 conditions, 3359 events. 1259/3359 cut-off events. For 9197/9342 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 21683 event pairs, 46 based on Foata normal form. 17/3345 useless extension candidates. Maximal degree in co-relation 11670. Up to 907 conditions per place. [2023-11-29 00:19:50,132 INFO L140 encePairwiseOnDemand]: 230/255 looper letters, 339 selfloop transitions, 160 changer transitions 0/644 dead transitions. [2023-11-29 00:19:50,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 644 transitions, 5901 flow [2023-11-29 00:19:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 00:19:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-29 00:19:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9036 transitions. [2023-11-29 00:19:50,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7382352941176471 [2023-11-29 00:19:50,152 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9036 transitions. [2023-11-29 00:19:50,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9036 transitions. [2023-11-29 00:19:50,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:50,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9036 transitions. [2023-11-29 00:19:50,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 188.25) internal successors, (9036), 48 states have internal predecessors, (9036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:50,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 255.0) internal successors, (12495), 49 states have internal predecessors, (12495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:50,200 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 255.0) internal successors, (12495), 49 states have internal predecessors, (12495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:50,200 INFO L175 Difference]: Start difference. First operand has 265 places, 280 transitions, 1484 flow. Second operand 48 states and 9036 transitions. [2023-11-29 00:19:50,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 644 transitions, 5901 flow [2023-11-29 00:19:50,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 644 transitions, 5807 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-29 00:19:50,247 INFO L231 Difference]: Finished difference. Result has 321 places, 405 transitions, 3243 flow [2023-11-29 00:19:50,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=3243, PETRI_PLACES=321, PETRI_TRANSITIONS=405} [2023-11-29 00:19:50,248 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 72 predicate places. [2023-11-29 00:19:50,248 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 405 transitions, 3243 flow [2023-11-29 00:19:50,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 183.78947368421052) internal successors, (3492), 19 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:50,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:50,250 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] [2023-11-29 00:19:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:19:50,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:50,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash -929878767, now seen corresponding path program 3 times [2023-11-29 00:19:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:50,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808016516] [2023-11-29 00:19:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:50,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:51,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:51,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808016516] [2023-11-29 00:19:51,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808016516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:51,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:51,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:19:51,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751223216] [2023-11-29 00:19:51,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:51,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:19:51,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:19:51,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:19:55,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:19:55,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 405 transitions, 3243 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:55,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:55,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:19:55,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:58,656 INFO L124 PetriNetUnfolderBase]: 1423/3916 cut-off events. [2023-11-29 00:19:58,656 INFO L125 PetriNetUnfolderBase]: For 22981/23005 co-relation queries the response was YES. [2023-11-29 00:19:58,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17058 conditions, 3916 events. 1423/3916 cut-off events. For 22981/23005 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 25540 event pairs, 101 based on Foata normal form. 29/3902 useless extension candidates. Maximal degree in co-relation 16362. Up to 1068 conditions per place. [2023-11-29 00:19:58,685 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 328 selfloop transitions, 198 changer transitions 0/671 dead transitions. [2023-11-29 00:19:58,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 671 transitions, 7763 flow [2023-11-29 00:19:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 00:19:58,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-11-29 00:19:58,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 8105 transitions. [2023-11-29 00:19:58,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391700866393068 [2023-11-29 00:19:58,693 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 8105 transitions. [2023-11-29 00:19:58,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 8105 transitions. [2023-11-29 00:19:58,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:58,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 8105 transitions. [2023-11-29 00:19:58,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 188.48837209302326) internal successors, (8105), 43 states have internal predecessors, (8105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:58,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 255.0) internal successors, (11220), 44 states have internal predecessors, (11220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:58,716 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 255.0) internal successors, (11220), 44 states have internal predecessors, (11220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:58,716 INFO L175 Difference]: Start difference. First operand has 321 places, 405 transitions, 3243 flow. Second operand 43 states and 8105 transitions. [2023-11-29 00:19:58,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 671 transitions, 7763 flow [2023-11-29 00:19:58,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 671 transitions, 7501 flow, removed 59 selfloop flow, removed 15 redundant places. [2023-11-29 00:19:58,892 INFO L231 Difference]: Finished difference. Result has 362 places, 476 transitions, 4870 flow [2023-11-29 00:19:58,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=3010, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=4870, PETRI_PLACES=362, PETRI_TRANSITIONS=476} [2023-11-29 00:19:58,894 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 113 predicate places. [2023-11-29 00:19:58,894 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 476 transitions, 4870 flow [2023-11-29 00:19:58,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:19:58,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:58,895 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] [2023-11-29 00:19:58,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 00:19:58,895 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:19:58,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:58,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1907827759, now seen corresponding path program 4 times [2023-11-29 00:19:58,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:58,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32930470] [2023-11-29 00:19:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:58,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:59,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:59,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32930470] [2023-11-29 00:19:59,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32930470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:59,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:59,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:19:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579571600] [2023-11-29 00:19:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:59,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:19:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:19:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:03,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:03,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 476 transitions, 4870 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:03,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:03,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:03,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:07,287 INFO L124 PetriNetUnfolderBase]: 1658/4757 cut-off events. [2023-11-29 00:20:07,287 INFO L125 PetriNetUnfolderBase]: For 37819/37949 co-relation queries the response was YES. [2023-11-29 00:20:07,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22350 conditions, 4757 events. 1658/4757 cut-off events. For 37819/37949 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 33211 event pairs, 85 based on Foata normal form. 39/4740 useless extension candidates. Maximal degree in co-relation 21849. Up to 1321 conditions per place. [2023-11-29 00:20:07,318 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 356 selfloop transitions, 261 changer transitions 0/762 dead transitions. [2023-11-29 00:20:07,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 762 transitions, 10556 flow [2023-11-29 00:20:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 00:20:07,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-29 00:20:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8493 transitions. [2023-11-29 00:20:07,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7401307189542483 [2023-11-29 00:20:07,325 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8493 transitions. [2023-11-29 00:20:07,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8493 transitions. [2023-11-29 00:20:07,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:07,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8493 transitions. [2023-11-29 00:20:07,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 188.73333333333332) internal successors, (8493), 45 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:07,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:07,357 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:07,357 INFO L175 Difference]: Start difference. First operand has 362 places, 476 transitions, 4870 flow. Second operand 45 states and 8493 transitions. [2023-11-29 00:20:07,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 762 transitions, 10556 flow [2023-11-29 00:20:07,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 762 transitions, 10080 flow, removed 176 selfloop flow, removed 25 redundant places. [2023-11-29 00:20:07,571 INFO L231 Difference]: Finished difference. Result has 390 places, 549 transitions, 6679 flow [2023-11-29 00:20:07,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=4506, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=6679, PETRI_PLACES=390, PETRI_TRANSITIONS=549} [2023-11-29 00:20:07,572 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 141 predicate places. [2023-11-29 00:20:07,572 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 549 transitions, 6679 flow [2023-11-29 00:20:07,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:07,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:07,573 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] [2023-11-29 00:20:07,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:20:07,574 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:07,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1595904897, now seen corresponding path program 5 times [2023-11-29 00:20:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:07,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175864758] [2023-11-29 00:20:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:07,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:08,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:08,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175864758] [2023-11-29 00:20:08,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175864758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:08,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:08,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:20:08,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208750707] [2023-11-29 00:20:08,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:08,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:20:08,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:08,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:20:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:12,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:12,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 549 transitions, 6679 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:12,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:12,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:12,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:16,855 INFO L124 PetriNetUnfolderBase]: 1749/5213 cut-off events. [2023-11-29 00:20:16,855 INFO L125 PetriNetUnfolderBase]: For 52804/52840 co-relation queries the response was YES. [2023-11-29 00:20:16,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26331 conditions, 5213 events. 1749/5213 cut-off events. For 52804/52840 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 37785 event pairs, 82 based on Foata normal form. 33/5183 useless extension candidates. Maximal degree in co-relation 25771. Up to 1434 conditions per place. [2023-11-29 00:20:16,913 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 368 selfloop transitions, 267 changer transitions 0/780 dead transitions. [2023-11-29 00:20:16,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 780 transitions, 11928 flow [2023-11-29 00:20:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 00:20:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-29 00:20:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8481 transitions. [2023-11-29 00:20:16,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7390849673202614 [2023-11-29 00:20:16,924 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8481 transitions. [2023-11-29 00:20:16,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8481 transitions. [2023-11-29 00:20:16,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:16,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8481 transitions. [2023-11-29 00:20:16,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 188.46666666666667) internal successors, (8481), 45 states have internal predecessors, (8481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:16,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:16,948 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:16,949 INFO L175 Difference]: Start difference. First operand has 390 places, 549 transitions, 6679 flow. Second operand 45 states and 8481 transitions. [2023-11-29 00:20:16,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 780 transitions, 11928 flow [2023-11-29 00:20:17,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 780 transitions, 11179 flow, removed 254 selfloop flow, removed 29 redundant places. [2023-11-29 00:20:17,179 INFO L231 Difference]: Finished difference. Result has 410 places, 582 transitions, 7521 flow [2023-11-29 00:20:17,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=6106, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=7521, PETRI_PLACES=410, PETRI_TRANSITIONS=582} [2023-11-29 00:20:17,180 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 161 predicate places. [2023-11-29 00:20:17,181 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 582 transitions, 7521 flow [2023-11-29 00:20:17,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:17,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:17,181 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] [2023-11-29 00:20:17,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 00:20:17,182 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:17,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash -780564911, now seen corresponding path program 6 times [2023-11-29 00:20:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937469127] [2023-11-29 00:20:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937469127] [2023-11-29 00:20:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937469127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:18,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:20:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690976281] [2023-11-29 00:20:18,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:18,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:20:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:20:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:22,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:22,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 582 transitions, 7521 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:22,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:22,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:22,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:26,929 INFO L124 PetriNetUnfolderBase]: 1754/5433 cut-off events. [2023-11-29 00:20:26,929 INFO L125 PetriNetUnfolderBase]: For 55578/55769 co-relation queries the response was YES. [2023-11-29 00:20:26,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27427 conditions, 5433 events. 1754/5433 cut-off events. For 55578/55769 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 39868 event pairs, 91 based on Foata normal form. 46/5403 useless extension candidates. Maximal degree in co-relation 26662. Up to 1469 conditions per place. [2023-11-29 00:20:26,973 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 376 selfloop transitions, 289 changer transitions 0/810 dead transitions. [2023-11-29 00:20:26,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 810 transitions, 12640 flow [2023-11-29 00:20:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 00:20:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-29 00:20:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8487 transitions. [2023-11-29 00:20:26,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7396078431372549 [2023-11-29 00:20:26,981 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8487 transitions. [2023-11-29 00:20:26,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8487 transitions. [2023-11-29 00:20:26,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:26,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8487 transitions. [2023-11-29 00:20:26,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 188.6) internal successors, (8487), 45 states have internal predecessors, (8487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:27,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:27,003 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 255.0) internal successors, (11730), 46 states have internal predecessors, (11730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:27,004 INFO L175 Difference]: Start difference. First operand has 410 places, 582 transitions, 7521 flow. Second operand 45 states and 8487 transitions. [2023-11-29 00:20:27,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 810 transitions, 12640 flow [2023-11-29 00:20:27,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 810 transitions, 12194 flow, removed 73 selfloop flow, removed 34 redundant places. [2023-11-29 00:20:27,252 INFO L231 Difference]: Finished difference. Result has 427 places, 608 transitions, 8404 flow [2023-11-29 00:20:27,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=7106, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=8404, PETRI_PLACES=427, PETRI_TRANSITIONS=608} [2023-11-29 00:20:27,254 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 178 predicate places. [2023-11-29 00:20:27,254 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 608 transitions, 8404 flow [2023-11-29 00:20:27,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:27,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:27,254 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] [2023-11-29 00:20:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 00:20:27,254 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:27,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1278496687, now seen corresponding path program 7 times [2023-11-29 00:20:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:27,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047945139] [2023-11-29 00:20:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:27,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047945139] [2023-11-29 00:20:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047945139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:27,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:20:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299000329] [2023-11-29 00:20:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:27,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:20:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:20:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:31,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:31,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 608 transitions, 8404 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:31,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:31,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:31,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:36,064 INFO L124 PetriNetUnfolderBase]: 2134/6631 cut-off events. [2023-11-29 00:20:36,065 INFO L125 PetriNetUnfolderBase]: For 78922/79050 co-relation queries the response was YES. [2023-11-29 00:20:36,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35446 conditions, 6631 events. 2134/6631 cut-off events. For 78922/79050 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 51084 event pairs, 167 based on Foata normal form. 29/6561 useless extension candidates. Maximal degree in co-relation 34274. Up to 2108 conditions per place. [2023-11-29 00:20:36,132 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 462 selfloop transitions, 300 changer transitions 0/907 dead transitions. [2023-11-29 00:20:36,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 907 transitions, 15597 flow [2023-11-29 00:20:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:20:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-29 00:20:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 7557 transitions. [2023-11-29 00:20:36,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7408823529411764 [2023-11-29 00:20:36,139 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 7557 transitions. [2023-11-29 00:20:36,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 7557 transitions. [2023-11-29 00:20:36,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:36,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 7557 transitions. [2023-11-29 00:20:36,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 188.925) internal successors, (7557), 40 states have internal predecessors, (7557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:36,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:36,164 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:36,164 INFO L175 Difference]: Start difference. First operand has 427 places, 608 transitions, 8404 flow. Second operand 40 states and 7557 transitions. [2023-11-29 00:20:36,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 907 transitions, 15597 flow [2023-11-29 00:20:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 907 transitions, 15172 flow, removed 66 selfloop flow, removed 31 redundant places. [2023-11-29 00:20:36,619 INFO L231 Difference]: Finished difference. Result has 448 places, 762 transitions, 12866 flow [2023-11-29 00:20:36,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=8016, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=12866, PETRI_PLACES=448, PETRI_TRANSITIONS=762} [2023-11-29 00:20:36,620 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 199 predicate places. [2023-11-29 00:20:36,621 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 762 transitions, 12866 flow [2023-11-29 00:20:36,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:36,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:36,621 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] [2023-11-29 00:20:36,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 00:20:36,621 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:36,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:36,622 INFO L85 PathProgramCache]: Analyzing trace with hash 202188373, now seen corresponding path program 8 times [2023-11-29 00:20:36,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019161078] [2023-11-29 00:20:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:37,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:37,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019161078] [2023-11-29 00:20:37,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019161078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:37,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:20:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851760466] [2023-11-29 00:20:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:37,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:20:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:20:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:42,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:42,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 762 transitions, 12866 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:42,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:42,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:42,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:46,625 INFO L124 PetriNetUnfolderBase]: 2263/7041 cut-off events. [2023-11-29 00:20:46,625 INFO L125 PetriNetUnfolderBase]: For 107875/108068 co-relation queries the response was YES. [2023-11-29 00:20:46,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40915 conditions, 7041 events. 2263/7041 cut-off events. For 107875/108068 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 54963 event pairs, 378 based on Foata normal form. 32/6957 useless extension candidates. Maximal degree in co-relation 39688. Up to 2530 conditions per place. [2023-11-29 00:20:46,701 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 508 selfloop transitions, 295 changer transitions 0/948 dead transitions. [2023-11-29 00:20:46,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 948 transitions, 18130 flow [2023-11-29 00:20:46,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 00:20:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-29 00:20:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6419 transitions. [2023-11-29 00:20:46,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7403690888119954 [2023-11-29 00:20:46,710 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 6419 transitions. [2023-11-29 00:20:46,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 6419 transitions. [2023-11-29 00:20:46,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:46,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 6419 transitions. [2023-11-29 00:20:46,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 188.7941176470588) internal successors, (6419), 34 states have internal predecessors, (6419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:46,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:46,734 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:46,734 INFO L175 Difference]: Start difference. First operand has 448 places, 762 transitions, 12866 flow. Second operand 34 states and 6419 transitions. [2023-11-29 00:20:46,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 948 transitions, 18130 flow [2023-11-29 00:20:47,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 948 transitions, 16696 flow, removed 668 selfloop flow, removed 20 redundant places. [2023-11-29 00:20:47,447 INFO L231 Difference]: Finished difference. Result has 470 places, 827 transitions, 14412 flow [2023-11-29 00:20:47,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=11878, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=14412, PETRI_PLACES=470, PETRI_TRANSITIONS=827} [2023-11-29 00:20:47,448 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 221 predicate places. [2023-11-29 00:20:47,448 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 827 transitions, 14412 flow [2023-11-29 00:20:47,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:47,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:47,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:47,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 00:20:47,449 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:47,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash -570838447, now seen corresponding path program 9 times [2023-11-29 00:20:47,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615647109] [2023-11-29 00:20:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:48,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615647109] [2023-11-29 00:20:48,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615647109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:48,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:48,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:20:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72279340] [2023-11-29 00:20:48,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:48,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:20:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:20:48,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:20:52,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:20:52,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 827 transitions, 14412 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:52,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:52,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:20:52,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:58,354 INFO L124 PetriNetUnfolderBase]: 2414/7746 cut-off events. [2023-11-29 00:20:58,354 INFO L125 PetriNetUnfolderBase]: For 119139/119243 co-relation queries the response was YES. [2023-11-29 00:20:58,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45172 conditions, 7746 events. 2414/7746 cut-off events. For 119139/119243 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 62596 event pairs, 170 based on Foata normal form. 37/7660 useless extension candidates. Maximal degree in co-relation 44644. Up to 2567 conditions per place. [2023-11-29 00:20:58,468 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 498 selfloop transitions, 377 changer transitions 0/1020 dead transitions. [2023-11-29 00:20:58,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1020 transitions, 19708 flow [2023-11-29 00:20:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:20:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-29 00:20:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7177 transitions. [2023-11-29 00:20:58,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7406604747162022 [2023-11-29 00:20:58,480 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7177 transitions. [2023-11-29 00:20:58,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7177 transitions. [2023-11-29 00:20:58,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:58,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7177 transitions. [2023-11-29 00:20:58,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 188.8684210526316) internal successors, (7177), 38 states have internal predecessors, (7177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:58,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:58,508 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:58,508 INFO L175 Difference]: Start difference. First operand has 470 places, 827 transitions, 14412 flow. Second operand 38 states and 7177 transitions. [2023-11-29 00:20:58,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1020 transitions, 19708 flow [2023-11-29 00:20:59,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1020 transitions, 19297 flow, removed 129 selfloop flow, removed 20 redundant places. [2023-11-29 00:20:59,286 INFO L231 Difference]: Finished difference. Result has 497 places, 896 transitions, 17021 flow [2023-11-29 00:20:59,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=14105, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=17021, PETRI_PLACES=497, PETRI_TRANSITIONS=896} [2023-11-29 00:20:59,288 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 248 predicate places. [2023-11-29 00:20:59,288 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 896 transitions, 17021 flow [2023-11-29 00:20:59,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:20:59,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:59,288 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] [2023-11-29 00:20:59,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 00:20:59,289 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:20:59,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2140871663, now seen corresponding path program 10 times [2023-11-29 00:20:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361355989] [2023-11-29 00:20:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:59,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:21:00,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:00,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361355989] [2023-11-29 00:21:00,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361355989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:00,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:00,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:21:00,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520029031] [2023-11-29 00:21:00,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:00,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:21:00,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:21:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:21:05,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:21:05,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 896 transitions, 17021 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:05,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:21:05,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:21:05,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:21:11,373 INFO L124 PetriNetUnfolderBase]: 2607/8485 cut-off events. [2023-11-29 00:21:11,373 INFO L125 PetriNetUnfolderBase]: For 149836/149948 co-relation queries the response was YES. [2023-11-29 00:21:11,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51891 conditions, 8485 events. 2607/8485 cut-off events. For 149836/149948 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 70669 event pairs, 179 based on Foata normal form. 45/8392 useless extension candidates. Maximal degree in co-relation 51335. Up to 2752 conditions per place. [2023-11-29 00:21:11,503 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 557 selfloop transitions, 390 changer transitions 0/1092 dead transitions. [2023-11-29 00:21:11,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1092 transitions, 22775 flow [2023-11-29 00:21:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 00:21:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-29 00:21:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7364 transitions. [2023-11-29 00:21:11,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7404725992961287 [2023-11-29 00:21:11,510 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7364 transitions. [2023-11-29 00:21:11,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7364 transitions. [2023-11-29 00:21:11,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:21:11,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7364 transitions. [2023-11-29 00:21:11,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 188.82051282051282) internal successors, (7364), 39 states have internal predecessors, (7364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:11,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 255.0) internal successors, (10200), 40 states have internal predecessors, (10200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:11,526 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 255.0) internal successors, (10200), 40 states have internal predecessors, (10200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:11,526 INFO L175 Difference]: Start difference. First operand has 497 places, 896 transitions, 17021 flow. Second operand 39 states and 7364 transitions. [2023-11-29 00:21:11,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 1092 transitions, 22775 flow [2023-11-29 00:21:12,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1092 transitions, 22333 flow, removed 120 selfloop flow, removed 22 redundant places. [2023-11-29 00:21:12,682 INFO L231 Difference]: Finished difference. Result has 523 places, 958 transitions, 19591 flow [2023-11-29 00:21:12,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=16612, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=337, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=19591, PETRI_PLACES=523, PETRI_TRANSITIONS=958} [2023-11-29 00:21:12,684 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 274 predicate places. [2023-11-29 00:21:12,684 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 958 transitions, 19591 flow [2023-11-29 00:21:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:12,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:21:12,685 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] [2023-11-29 00:21:12,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:21:12,685 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:21:12,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:12,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1379506193, now seen corresponding path program 11 times [2023-11-29 00:21:12,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:12,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891008361] [2023-11-29 00:21:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:12,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:21:13,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:13,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891008361] [2023-11-29 00:21:13,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891008361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:13,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:13,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:21:13,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925255278] [2023-11-29 00:21:13,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:13,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:21:13,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:13,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:21:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:21:18,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:21:18,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 958 transitions, 19591 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:18,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:21:18,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:21:18,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:21:24,236 INFO L124 PetriNetUnfolderBase]: 2698/8904 cut-off events. [2023-11-29 00:21:24,236 INFO L125 PetriNetUnfolderBase]: For 175340/175452 co-relation queries the response was YES. [2023-11-29 00:21:24,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56274 conditions, 8904 events. 2698/8904 cut-off events. For 175340/175452 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 75131 event pairs, 194 based on Foata normal form. 45/8802 useless extension candidates. Maximal degree in co-relation 55690. Up to 2767 conditions per place. [2023-11-29 00:21:24,318 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 536 selfloop transitions, 454 changer transitions 0/1135 dead transitions. [2023-11-29 00:21:24,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 1135 transitions, 24884 flow [2023-11-29 00:21:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:21:24,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-29 00:21:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 7560 transitions. [2023-11-29 00:21:24,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7411764705882353 [2023-11-29 00:21:24,324 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 7560 transitions. [2023-11-29 00:21:24,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 7560 transitions. [2023-11-29 00:21:24,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:21:24,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 7560 transitions. [2023-11-29 00:21:24,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 189.0) internal successors, (7560), 40 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:24,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:24,336 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:24,337 INFO L175 Difference]: Start difference. First operand has 523 places, 958 transitions, 19591 flow. Second operand 40 states and 7560 transitions. [2023-11-29 00:21:24,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 1135 transitions, 24884 flow [2023-11-29 00:21:25,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1135 transitions, 24482 flow, removed 117 selfloop flow, removed 21 redundant places. [2023-11-29 00:21:25,432 INFO L231 Difference]: Finished difference. Result has 548 places, 998 transitions, 21599 flow [2023-11-29 00:21:25,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=19189, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=21599, PETRI_PLACES=548, PETRI_TRANSITIONS=998} [2023-11-29 00:21:25,433 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 299 predicate places. [2023-11-29 00:21:25,433 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 998 transitions, 21599 flow [2023-11-29 00:21:25,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:25,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:21:25,434 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] [2023-11-29 00:21:25,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:21:25,434 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:21:25,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -817956053, now seen corresponding path program 12 times [2023-11-29 00:21:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:25,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915374589] [2023-11-29 00:21:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:21:26,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:26,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915374589] [2023-11-29 00:21:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915374589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:26,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:21:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533551367] [2023-11-29 00:21:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:21:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:21:26,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:21:31,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:21:31,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 998 transitions, 21599 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:31,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:21:31,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:21:31,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:21:36,793 INFO L124 PetriNetUnfolderBase]: 2851/9521 cut-off events. [2023-11-29 00:21:36,793 INFO L125 PetriNetUnfolderBase]: For 206141/206257 co-relation queries the response was YES. [2023-11-29 00:21:36,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62313 conditions, 9521 events. 2851/9521 cut-off events. For 206141/206257 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 81761 event pairs, 218 based on Foata normal form. 41/9400 useless extension candidates. Maximal degree in co-relation 61772. Up to 3189 conditions per place. [2023-11-29 00:21:36,903 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 626 selfloop transitions, 423 changer transitions 0/1194 dead transitions. [2023-11-29 00:21:36,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 1194 transitions, 27915 flow [2023-11-29 00:21:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:21:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-29 00:21:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7169 transitions. [2023-11-29 00:21:36,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7398348813209494 [2023-11-29 00:21:36,911 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7169 transitions. [2023-11-29 00:21:36,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7169 transitions. [2023-11-29 00:21:36,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:21:36,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7169 transitions. [2023-11-29 00:21:36,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 188.6578947368421) internal successors, (7169), 38 states have internal predecessors, (7169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:36,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:36,928 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:36,928 INFO L175 Difference]: Start difference. First operand has 548 places, 998 transitions, 21599 flow. Second operand 38 states and 7169 transitions. [2023-11-29 00:21:36,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 1194 transitions, 27915 flow [2023-11-29 00:21:38,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1194 transitions, 27336 flow, removed 114 selfloop flow, removed 25 redundant places. [2023-11-29 00:21:38,515 INFO L231 Difference]: Finished difference. Result has 569 places, 1066 transitions, 24719 flow [2023-11-29 00:21:38,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=21072, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=357, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=24719, PETRI_PLACES=569, PETRI_TRANSITIONS=1066} [2023-11-29 00:21:38,516 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 320 predicate places. [2023-11-29 00:21:38,516 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 1066 transitions, 24719 flow [2023-11-29 00:21:38,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:38,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:21:38,517 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] [2023-11-29 00:21:38,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 00:21:38,517 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:21:38,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1146396237, now seen corresponding path program 13 times [2023-11-29 00:21:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563442119] [2023-11-29 00:21:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:21:39,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:39,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563442119] [2023-11-29 00:21:39,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563442119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:39,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:39,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:21:39,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266390263] [2023-11-29 00:21:39,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:39,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:21:39,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:21:39,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:21:43,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:21:43,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1066 transitions, 24719 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:43,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:21:43,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:21:43,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:21:50,112 INFO L124 PetriNetUnfolderBase]: 2918/9962 cut-off events. [2023-11-29 00:21:50,112 INFO L125 PetriNetUnfolderBase]: For 237543/237754 co-relation queries the response was YES. [2023-11-29 00:21:50,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66767 conditions, 9962 events. 2918/9962 cut-off events. For 237543/237754 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 87061 event pairs, 214 based on Foata normal form. 46/9831 useless extension candidates. Maximal degree in co-relation 66116. Up to 3315 conditions per place. [2023-11-29 00:21:50,244 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 625 selfloop transitions, 452 changer transitions 0/1222 dead transitions. [2023-11-29 00:21:50,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 1222 transitions, 30073 flow [2023-11-29 00:21:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:21:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 00:21:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 6987 transitions. [2023-11-29 00:21:50,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7405405405405405 [2023-11-29 00:21:50,249 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 6987 transitions. [2023-11-29 00:21:50,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 6987 transitions. [2023-11-29 00:21:50,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:21:50,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 6987 transitions. [2023-11-29 00:21:50,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 188.83783783783784) internal successors, (6987), 37 states have internal predecessors, (6987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:50,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:50,261 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:50,261 INFO L175 Difference]: Start difference. First operand has 569 places, 1066 transitions, 24719 flow. Second operand 37 states and 6987 transitions. [2023-11-29 00:21:50,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 1222 transitions, 30073 flow [2023-11-29 00:21:52,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1222 transitions, 29644 flow, removed 107 selfloop flow, removed 23 redundant places. [2023-11-29 00:21:52,461 INFO L231 Difference]: Finished difference. Result has 590 places, 1103 transitions, 27118 flow [2023-11-29 00:21:52,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=24295, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=27118, PETRI_PLACES=590, PETRI_TRANSITIONS=1103} [2023-11-29 00:21:52,463 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 341 predicate places. [2023-11-29 00:21:52,463 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 1103 transitions, 27118 flow [2023-11-29 00:21:52,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:52,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:21:52,464 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] [2023-11-29 00:21:52,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 00:21:52,464 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:21:52,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1177112663, now seen corresponding path program 14 times [2023-11-29 00:21:52,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855378666] [2023-11-29 00:21:52,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:52,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:21:53,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:53,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855378666] [2023-11-29 00:21:53,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855378666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:53,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:53,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:21:53,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335320992] [2023-11-29 00:21:53,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:53,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:21:53,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:53,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:21:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:21:58,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:21:58,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1103 transitions, 27118 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:21:58,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:21:58,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:21:58,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:22:04,985 INFO L124 PetriNetUnfolderBase]: 2923/10186 cut-off events. [2023-11-29 00:22:04,985 INFO L125 PetriNetUnfolderBase]: For 264289/264504 co-relation queries the response was YES. [2023-11-29 00:22:05,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69843 conditions, 10186 events. 2923/10186 cut-off events. For 264289/264504 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 90113 event pairs, 222 based on Foata normal form. 48/10049 useless extension candidates. Maximal degree in co-relation 69166. Up to 3250 conditions per place. [2023-11-29 00:22:05,191 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 628 selfloop transitions, 471 changer transitions 0/1244 dead transitions. [2023-11-29 00:22:05,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 1244 transitions, 32009 flow [2023-11-29 00:22:05,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 00:22:05,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-29 00:22:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7363 transitions. [2023-11-29 00:22:05,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7403720462543992 [2023-11-29 00:22:05,196 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7363 transitions. [2023-11-29 00:22:05,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7363 transitions. [2023-11-29 00:22:05,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:22:05,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7363 transitions. [2023-11-29 00:22:05,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 188.7948717948718) internal successors, (7363), 39 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:05,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 255.0) internal successors, (10200), 40 states have internal predecessors, (10200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:05,210 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 255.0) internal successors, (10200), 40 states have internal predecessors, (10200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:05,210 INFO L175 Difference]: Start difference. First operand has 590 places, 1103 transitions, 27118 flow. Second operand 39 states and 7363 transitions. [2023-11-29 00:22:05,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 1244 transitions, 32009 flow [2023-11-29 00:22:07,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 1244 transitions, 31396 flow, removed 191 selfloop flow, removed 23 redundant places. [2023-11-29 00:22:07,805 INFO L231 Difference]: Finished difference. Result has 609 places, 1123 transitions, 28519 flow [2023-11-29 00:22:07,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=26579, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=28519, PETRI_PLACES=609, PETRI_TRANSITIONS=1123} [2023-11-29 00:22:07,807 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 360 predicate places. [2023-11-29 00:22:07,807 INFO L495 AbstractCegarLoop]: Abstraction has has 609 places, 1123 transitions, 28519 flow [2023-11-29 00:22:07,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:07,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:22:07,807 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] [2023-11-29 00:22:07,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 00:22:07,807 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:22:07,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2023971451, now seen corresponding path program 15 times [2023-11-29 00:22:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:07,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711264385] [2023-11-29 00:22:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:08,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711264385] [2023-11-29 00:22:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711264385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:08,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:08,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:22:08,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913941224] [2023-11-29 00:22:08,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:08,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:22:08,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:08,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:22:08,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:22:12,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:22:12,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 1123 transitions, 28519 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:12,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:22:12,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:22:12,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:22:20,980 INFO L124 PetriNetUnfolderBase]: 2928/10492 cut-off events. [2023-11-29 00:22:20,980 INFO L125 PetriNetUnfolderBase]: For 287191/287303 co-relation queries the response was YES. [2023-11-29 00:22:21,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72179 conditions, 10492 events. 2928/10492 cut-off events. For 287191/287303 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 94627 event pairs, 187 based on Foata normal form. 45/10344 useless extension candidates. Maximal degree in co-relation 71560. Up to 3152 conditions per place. [2023-11-29 00:22:21,164 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 589 selfloop transitions, 531 changer transitions 0/1265 dead transitions. [2023-11-29 00:22:21,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1265 transitions, 33433 flow [2023-11-29 00:22:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:22:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-29 00:22:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 7553 transitions. [2023-11-29 00:22:21,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7404901960784314 [2023-11-29 00:22:21,172 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 7553 transitions. [2023-11-29 00:22:21,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 7553 transitions. [2023-11-29 00:22:21,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:22:21,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 7553 transitions. [2023-11-29 00:22:21,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 188.825) internal successors, (7553), 40 states have internal predecessors, (7553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:21,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:21,191 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 255.0) internal successors, (10455), 41 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:21,191 INFO L175 Difference]: Start difference. First operand has 609 places, 1123 transitions, 28519 flow. Second operand 40 states and 7553 transitions. [2023-11-29 00:22:21,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 1265 transitions, 33433 flow [2023-11-29 00:22:23,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 1265 transitions, 32767 flow, removed 173 selfloop flow, removed 28 redundant places. [2023-11-29 00:22:23,829 INFO L231 Difference]: Finished difference. Result has 624 places, 1143 transitions, 29946 flow [2023-11-29 00:22:23,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=27893, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=513, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=29946, PETRI_PLACES=624, PETRI_TRANSITIONS=1143} [2023-11-29 00:22:23,830 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 375 predicate places. [2023-11-29 00:22:23,830 INFO L495 AbstractCegarLoop]: Abstraction has has 624 places, 1143 transitions, 29946 flow [2023-11-29 00:22:23,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:23,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:22:23,831 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] [2023-11-29 00:22:23,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 00:22:23,831 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:22:23,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:23,831 INFO L85 PathProgramCache]: Analyzing trace with hash 639661891, now seen corresponding path program 16 times [2023-11-29 00:22:23,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:23,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482774469] [2023-11-29 00:22:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:23,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:24,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:24,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482774469] [2023-11-29 00:22:24,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482774469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:24,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:24,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:22:24,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525323285] [2023-11-29 00:22:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:24,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:22:24,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:24,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:22:24,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:22:29,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:22:29,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 1143 transitions, 29946 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:29,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:22:29,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:22:29,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:22:37,390 INFO L124 PetriNetUnfolderBase]: 3390/11474 cut-off events. [2023-11-29 00:22:37,390 INFO L125 PetriNetUnfolderBase]: For 369637/369798 co-relation queries the response was YES. [2023-11-29 00:22:37,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85325 conditions, 11474 events. 3390/11474 cut-off events. For 369637/369798 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 103729 event pairs, 340 based on Foata normal form. 44/11295 useless extension candidates. Maximal degree in co-relation 84604. Up to 3401 conditions per place. [2023-11-29 00:22:37,581 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 566 selfloop transitions, 729 changer transitions 0/1440 dead transitions. [2023-11-29 00:22:37,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1440 transitions, 40316 flow [2023-11-29 00:22:37,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:22:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-29 00:22:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7191 transitions. [2023-11-29 00:22:37,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7421052631578947 [2023-11-29 00:22:37,586 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7191 transitions. [2023-11-29 00:22:37,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7191 transitions. [2023-11-29 00:22:37,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:22:37,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7191 transitions. [2023-11-29 00:22:37,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 189.23684210526315) internal successors, (7191), 38 states have internal predecessors, (7191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:37,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:37,598 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:37,598 INFO L175 Difference]: Start difference. First operand has 624 places, 1143 transitions, 29946 flow. Second operand 38 states and 7191 transitions. [2023-11-29 00:22:37,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 1440 transitions, 40316 flow [2023-11-29 00:22:40,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 1440 transitions, 39792 flow, removed 59 selfloop flow, removed 29 redundant places. [2023-11-29 00:22:40,869 INFO L231 Difference]: Finished difference. Result has 649 places, 1307 transitions, 37988 flow [2023-11-29 00:22:40,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=29455, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=585, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=37988, PETRI_PLACES=649, PETRI_TRANSITIONS=1307} [2023-11-29 00:22:40,870 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 400 predicate places. [2023-11-29 00:22:40,870 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 1307 transitions, 37988 flow [2023-11-29 00:22:40,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:40,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:22:40,871 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] [2023-11-29 00:22:40,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 00:22:40,871 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:22:40,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:40,871 INFO L85 PathProgramCache]: Analyzing trace with hash -406334115, now seen corresponding path program 17 times [2023-11-29 00:22:40,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:40,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143328127] [2023-11-29 00:22:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:40,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:41,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:41,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143328127] [2023-11-29 00:22:41,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143328127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:41,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:41,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:22:41,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500149465] [2023-11-29 00:22:41,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:41,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:22:41,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:41,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:22:41,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:22:45,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:22:45,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 1307 transitions, 37988 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:45,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:22:45,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:22:45,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:22:54,775 INFO L124 PetriNetUnfolderBase]: 3507/12642 cut-off events. [2023-11-29 00:22:54,775 INFO L125 PetriNetUnfolderBase]: For 457457/457513 co-relation queries the response was YES. [2023-11-29 00:22:54,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95611 conditions, 12642 events. 3507/12642 cut-off events. For 457457/457513 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 119785 event pairs, 167 based on Foata normal form. 53/12458 useless extension candidates. Maximal degree in co-relation 94851. Up to 3726 conditions per place. [2023-11-29 00:22:55,023 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 581 selfloop transitions, 767 changer transitions 0/1493 dead transitions. [2023-11-29 00:22:55,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 679 places, 1493 transitions, 45596 flow [2023-11-29 00:22:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 00:22:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-11-29 00:22:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5877 transitions. [2023-11-29 00:22:55,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7434535104364326 [2023-11-29 00:22:55,027 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5877 transitions. [2023-11-29 00:22:55,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5877 transitions. [2023-11-29 00:22:55,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:22:55,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5877 transitions. [2023-11-29 00:22:55,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 189.58064516129033) internal successors, (5877), 31 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:55,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 255.0) internal successors, (8160), 32 states have internal predecessors, (8160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:55,037 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 255.0) internal successors, (8160), 32 states have internal predecessors, (8160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:55,037 INFO L175 Difference]: Start difference. First operand has 649 places, 1307 transitions, 37988 flow. Second operand 31 states and 5877 transitions. [2023-11-29 00:22:55,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 679 places, 1493 transitions, 45596 flow [2023-11-29 00:22:59,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 1493 transitions, 44277 flow, removed 617 selfloop flow, removed 17 redundant places. [2023-11-29 00:22:59,385 INFO L231 Difference]: Finished difference. Result has 672 places, 1375 transitions, 42635 flow [2023-11-29 00:22:59,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=36965, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=699, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=42635, PETRI_PLACES=672, PETRI_TRANSITIONS=1375} [2023-11-29 00:22:59,386 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 423 predicate places. [2023-11-29 00:22:59,386 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 1375 transitions, 42635 flow [2023-11-29 00:22:59,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:22:59,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:22:59,387 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] [2023-11-29 00:22:59,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 00:22:59,387 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:22:59,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:59,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1041433111, now seen corresponding path program 18 times [2023-11-29 00:22:59,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:59,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005687989] [2023-11-29 00:22:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:59,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:00,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005687989] [2023-11-29 00:23:00,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005687989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:00,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:00,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:23:00,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604122011] [2023-11-29 00:23:00,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:00,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:23:00,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:23:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:23:04,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:23:04,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 1375 transitions, 42635 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:04,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:23:04,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:23:04,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:23:15,582 INFO L124 PetriNetUnfolderBase]: 3743/13335 cut-off events. [2023-11-29 00:23:15,583 INFO L125 PetriNetUnfolderBase]: For 534116/534240 co-relation queries the response was YES. [2023-11-29 00:23:15,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104860 conditions, 13335 events. 3743/13335 cut-off events. For 534116/534240 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 126974 event pairs, 207 based on Foata normal form. 53/13138 useless extension candidates. Maximal degree in co-relation 103894. Up to 3812 conditions per place. [2023-11-29 00:23:15,934 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 587 selfloop transitions, 840 changer transitions 0/1572 dead transitions. [2023-11-29 00:23:15,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 709 places, 1572 transitions, 50437 flow [2023-11-29 00:23:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:23:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-29 00:23:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7194 transitions. [2023-11-29 00:23:15,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7424148606811145 [2023-11-29 00:23:15,940 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7194 transitions. [2023-11-29 00:23:15,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7194 transitions. [2023-11-29 00:23:15,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:23:15,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7194 transitions. [2023-11-29 00:23:15,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 189.31578947368422) internal successors, (7194), 38 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:15,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:15,954 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:15,954 INFO L175 Difference]: Start difference. First operand has 672 places, 1375 transitions, 42635 flow. Second operand 38 states and 7194 transitions. [2023-11-29 00:23:15,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 709 places, 1572 transitions, 50437 flow [2023-11-29 00:23:21,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 692 places, 1572 transitions, 50264 flow, removed 44 selfloop flow, removed 17 redundant places. [2023-11-29 00:23:21,306 INFO L231 Difference]: Finished difference. Result has 702 places, 1449 transitions, 47606 flow [2023-11-29 00:23:21,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=42494, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=771, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=47606, PETRI_PLACES=702, PETRI_TRANSITIONS=1449} [2023-11-29 00:23:21,308 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 453 predicate places. [2023-11-29 00:23:21,308 INFO L495 AbstractCegarLoop]: Abstraction has has 702 places, 1449 transitions, 47606 flow [2023-11-29 00:23:21,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:21,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:23:21,308 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] [2023-11-29 00:23:21,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 00:23:21,309 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:23:21,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:21,309 INFO L85 PathProgramCache]: Analyzing trace with hash -493705989, now seen corresponding path program 19 times [2023-11-29 00:23:21,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:21,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366377780] [2023-11-29 00:23:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:22,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:22,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366377780] [2023-11-29 00:23:22,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366377780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:22,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:22,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:23:22,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577031984] [2023-11-29 00:23:22,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:22,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:23:22,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:22,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:23:22,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:23:27,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:23:27,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 702 places, 1449 transitions, 47606 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:27,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:23:27,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:23:27,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:23:39,585 INFO L124 PetriNetUnfolderBase]: 4043/14410 cut-off events. [2023-11-29 00:23:39,585 INFO L125 PetriNetUnfolderBase]: For 641944/642076 co-relation queries the response was YES. [2023-11-29 00:23:39,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118913 conditions, 14410 events. 4043/14410 cut-off events. For 641944/642076 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 139833 event pairs, 243 based on Foata normal form. 57/14196 useless extension candidates. Maximal degree in co-relation 118193. Up to 4101 conditions per place. [2023-11-29 00:23:39,979 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 612 selfloop transitions, 929 changer transitions 0/1686 dead transitions. [2023-11-29 00:23:39,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 1686 transitions, 57644 flow [2023-11-29 00:23:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:23:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 00:23:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 7004 transitions. [2023-11-29 00:23:39,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7423423423423423 [2023-11-29 00:23:39,985 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 7004 transitions. [2023-11-29 00:23:39,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 7004 transitions. [2023-11-29 00:23:39,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:23:39,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 7004 transitions. [2023-11-29 00:23:39,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 189.2972972972973) internal successors, (7004), 37 states have internal predecessors, (7004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:39,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:39,997 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:39,997 INFO L175 Difference]: Start difference. First operand has 702 places, 1449 transitions, 47606 flow. Second operand 37 states and 7004 transitions. [2023-11-29 00:23:39,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 1686 transitions, 57644 flow [2023-11-29 00:23:46,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 718 places, 1686 transitions, 56940 flow, removed 266 selfloop flow, removed 20 redundant places. [2023-11-29 00:23:46,168 INFO L231 Difference]: Finished difference. Result has 732 places, 1564 transitions, 54532 flow [2023-11-29 00:23:46,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=46971, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=822, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=54532, PETRI_PLACES=732, PETRI_TRANSITIONS=1564} [2023-11-29 00:23:46,170 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 483 predicate places. [2023-11-29 00:23:46,170 INFO L495 AbstractCegarLoop]: Abstraction has has 732 places, 1564 transitions, 54532 flow [2023-11-29 00:23:46,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:23:46,171 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] [2023-11-29 00:23:46,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 00:23:46,171 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:23:46,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:46,171 INFO L85 PathProgramCache]: Analyzing trace with hash -779919603, now seen corresponding path program 20 times [2023-11-29 00:23:46,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:46,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773386034] [2023-11-29 00:23:46,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:46,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:46,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773386034] [2023-11-29 00:23:46,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773386034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:46,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:46,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:23:46,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096202713] [2023-11-29 00:23:46,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:46,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:23:46,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:46,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:23:46,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:23:51,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:23:51,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 1564 transitions, 54532 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:51,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:23:51,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:23:51,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:24:03,888 INFO L124 PetriNetUnfolderBase]: 4172/15005 cut-off events. [2023-11-29 00:24:03,888 INFO L125 PetriNetUnfolderBase]: For 729750/729886 co-relation queries the response was YES. [2023-11-29 00:24:04,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127926 conditions, 15005 events. 4172/15005 cut-off events. For 729750/729886 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 147077 event pairs, 233 based on Foata normal form. 57/14777 useless extension candidates. Maximal degree in co-relation 127078. Up to 4391 conditions per place. [2023-11-29 00:24:04,260 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 641 selfloop transitions, 956 changer transitions 0/1742 dead transitions. [2023-11-29 00:24:04,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 763 places, 1742 transitions, 62699 flow [2023-11-29 00:24:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 00:24:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-29 00:24:04,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6058 transitions. [2023-11-29 00:24:04,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7424019607843138 [2023-11-29 00:24:04,266 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6058 transitions. [2023-11-29 00:24:04,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6058 transitions. [2023-11-29 00:24:04,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:24:04,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6058 transitions. [2023-11-29 00:24:04,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 189.3125) internal successors, (6058), 32 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:04,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 255.0) internal successors, (8415), 33 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:04,280 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 255.0) internal successors, (8415), 33 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:04,280 INFO L175 Difference]: Start difference. First operand has 732 places, 1564 transitions, 54532 flow. Second operand 32 states and 6058 transitions. [2023-11-29 00:24:04,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 763 places, 1742 transitions, 62699 flow [2023-11-29 00:24:12,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 744 places, 1742 transitions, 62156 flow, removed 191 selfloop flow, removed 19 redundant places. [2023-11-29 00:24:12,495 INFO L231 Difference]: Finished difference. Result has 754 places, 1634 transitions, 60736 flow [2023-11-29 00:24:12,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=53996, PETRI_DIFFERENCE_MINUEND_PLACES=713, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=887, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=60736, PETRI_PLACES=754, PETRI_TRANSITIONS=1634} [2023-11-29 00:24:12,497 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 505 predicate places. [2023-11-29 00:24:12,497 INFO L495 AbstractCegarLoop]: Abstraction has has 754 places, 1634 transitions, 60736 flow [2023-11-29 00:24:12,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:12,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:24:12,497 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] [2023-11-29 00:24:12,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 00:24:12,497 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:24:12,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash 394519991, now seen corresponding path program 21 times [2023-11-29 00:24:12,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:12,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801221841] [2023-11-29 00:24:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:12,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:13,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801221841] [2023-11-29 00:24:13,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801221841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:24:13,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:24:13,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:24:13,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620179673] [2023-11-29 00:24:13,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:24:13,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:24:13,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:13,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:24:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:24:17,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:24:17,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 754 places, 1634 transitions, 60736 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:17,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:24:17,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:24:17,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:24:32,705 INFO L124 PetriNetUnfolderBase]: 4327/15834 cut-off events. [2023-11-29 00:24:32,706 INFO L125 PetriNetUnfolderBase]: For 844959/845131 co-relation queries the response was YES. [2023-11-29 00:24:33,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139084 conditions, 15834 events. 4327/15834 cut-off events. For 844959/845131 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 157661 event pairs, 248 based on Foata normal form. 53/15578 useless extension candidates. Maximal degree in co-relation 138208. Up to 4515 conditions per place. [2023-11-29 00:24:33,124 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 682 selfloop transitions, 1018 changer transitions 0/1845 dead transitions. [2023-11-29 00:24:33,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 1845 transitions, 70481 flow [2023-11-29 00:24:33,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 00:24:33,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-29 00:24:33,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6440 transitions. [2023-11-29 00:24:33,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7427912341407151 [2023-11-29 00:24:33,128 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 6440 transitions. [2023-11-29 00:24:33,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 6440 transitions. [2023-11-29 00:24:33,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:24:33,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 6440 transitions. [2023-11-29 00:24:33,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 189.41176470588235) internal successors, (6440), 34 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:33,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:33,138 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:33,138 INFO L175 Difference]: Start difference. First operand has 754 places, 1634 transitions, 60736 flow. Second operand 34 states and 6440 transitions. [2023-11-29 00:24:33,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 1845 transitions, 70481 flow [2023-11-29 00:24:41,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 1845 transitions, 70110 flow, removed 143 selfloop flow, removed 17 redundant places. [2023-11-29 00:24:41,791 INFO L231 Difference]: Finished difference. Result has 781 places, 1717 transitions, 68265 flow [2023-11-29 00:24:41,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=60367, PETRI_DIFFERENCE_MINUEND_PLACES=737, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=936, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=68265, PETRI_PLACES=781, PETRI_TRANSITIONS=1717} [2023-11-29 00:24:41,793 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 532 predicate places. [2023-11-29 00:24:41,793 INFO L495 AbstractCegarLoop]: Abstraction has has 781 places, 1717 transitions, 68265 flow [2023-11-29 00:24:41,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:41,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:24:41,793 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] [2023-11-29 00:24:41,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 00:24:41,794 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:24:41,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1793543809, now seen corresponding path program 22 times [2023-11-29 00:24:41,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:41,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920352919] [2023-11-29 00:24:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:42,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920352919] [2023-11-29 00:24:42,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920352919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:24:42,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:24:42,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:24:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134853941] [2023-11-29 00:24:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:24:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:24:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:24:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:24:47,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:24:47,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 1717 transitions, 68265 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:47,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:24:47,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:24:47,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:25:02,762 INFO L124 PetriNetUnfolderBase]: 4446/16255 cut-off events. [2023-11-29 00:25:02,763 INFO L125 PetriNetUnfolderBase]: For 947566/947714 co-relation queries the response was YES. [2023-11-29 00:25:03,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148088 conditions, 16255 events. 4446/16255 cut-off events. For 947566/947714 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 162678 event pairs, 251 based on Foata normal form. 69/16009 useless extension candidates. Maximal degree in co-relation 147291. Up to 4607 conditions per place. [2023-11-29 00:25:03,207 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 650 selfloop transitions, 1088 changer transitions 0/1883 dead transitions. [2023-11-29 00:25:03,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 817 places, 1883 transitions, 76289 flow [2023-11-29 00:25:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:25:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 00:25:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 7003 transitions. [2023-11-29 00:25:03,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7422363540010599 [2023-11-29 00:25:03,227 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 7003 transitions. [2023-11-29 00:25:03,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 7003 transitions. [2023-11-29 00:25:03,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:25:03,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 7003 transitions. [2023-11-29 00:25:03,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 189.27027027027026) internal successors, (7003), 37 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:03,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:03,243 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:03,243 INFO L175 Difference]: Start difference. First operand has 781 places, 1717 transitions, 68265 flow. Second operand 37 states and 7003 transitions. [2023-11-29 00:25:03,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 817 places, 1883 transitions, 76289 flow [2023-11-29 00:25:13,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 1883 transitions, 75579 flow, removed 121 selfloop flow, removed 20 redundant places. [2023-11-29 00:25:13,655 INFO L231 Difference]: Finished difference. Result has 807 places, 1772 transitions, 74263 flow [2023-11-29 00:25:13,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=67577, PETRI_DIFFERENCE_MINUEND_PLACES=761, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1037, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=74263, PETRI_PLACES=807, PETRI_TRANSITIONS=1772} [2023-11-29 00:25:13,657 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 558 predicate places. [2023-11-29 00:25:13,657 INFO L495 AbstractCegarLoop]: Abstraction has has 807 places, 1772 transitions, 74263 flow [2023-11-29 00:25:13,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:13,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:25:13,657 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] [2023-11-29 00:25:13,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 00:25:13,658 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:25:13,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash 733461711, now seen corresponding path program 23 times [2023-11-29 00:25:13,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:13,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172448402] [2023-11-29 00:25:13,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:13,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:25:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:14,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172448402] [2023-11-29 00:25:14,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172448402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:25:14,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:25:14,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:25:14,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723690432] [2023-11-29 00:25:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:25:14,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:25:14,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:25:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:25:18,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:25:18,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 1772 transitions, 74263 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:18,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:25:18,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:25:18,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:25:36,208 INFO L124 PetriNetUnfolderBase]: 4513/16660 cut-off events. [2023-11-29 00:25:36,209 INFO L125 PetriNetUnfolderBase]: For 1061156/1061342 co-relation queries the response was YES. [2023-11-29 00:25:36,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156181 conditions, 16660 events. 4513/16660 cut-off events. For 1061156/1061342 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 167881 event pairs, 236 based on Foata normal form. 63/16395 useless extension candidates. Maximal degree in co-relation 155248. Up to 4670 conditions per place. [2023-11-29 00:25:36,655 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 708 selfloop transitions, 1072 changer transitions 0/1925 dead transitions. [2023-11-29 00:25:36,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 1925 transitions, 81334 flow [2023-11-29 00:25:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 00:25:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-11-29 00:25:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6814 transitions. [2023-11-29 00:25:36,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7422657952069717 [2023-11-29 00:25:36,661 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6814 transitions. [2023-11-29 00:25:36,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6814 transitions. [2023-11-29 00:25:36,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:25:36,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6814 transitions. [2023-11-29 00:25:36,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.27777777777777) internal successors, (6814), 36 states have internal predecessors, (6814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:36,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:36,673 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:36,673 INFO L175 Difference]: Start difference. First operand has 807 places, 1772 transitions, 74263 flow. Second operand 36 states and 6814 transitions. [2023-11-29 00:25:36,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 842 places, 1925 transitions, 81334 flow [2023-11-29 00:25:48,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 1925 transitions, 80695 flow, removed 239 selfloop flow, removed 19 redundant places. [2023-11-29 00:25:48,699 INFO L231 Difference]: Finished difference. Result has 829 places, 1795 transitions, 78689 flow [2023-11-29 00:25:48,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=73625, PETRI_DIFFERENCE_MINUEND_PLACES=788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=78689, PETRI_PLACES=829, PETRI_TRANSITIONS=1795} [2023-11-29 00:25:48,701 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 580 predicate places. [2023-11-29 00:25:48,701 INFO L495 AbstractCegarLoop]: Abstraction has has 829 places, 1795 transitions, 78689 flow [2023-11-29 00:25:48,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:48,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:25:48,702 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] [2023-11-29 00:25:48,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 00:25:48,702 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:25:48,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:48,702 INFO L85 PathProgramCache]: Analyzing trace with hash -580700677, now seen corresponding path program 24 times [2023-11-29 00:25:48,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:48,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343080647] [2023-11-29 00:25:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:48,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:25:49,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:49,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343080647] [2023-11-29 00:25:49,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343080647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:25:49,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:25:49,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:25:49,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862974823] [2023-11-29 00:25:49,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:25:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:25:49,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:25:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:25:54,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:25:54,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 1795 transitions, 78689 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:54,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:25:54,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:25:54,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:26:12,318 INFO L124 PetriNetUnfolderBase]: 4559/17132 cut-off events. [2023-11-29 00:26:12,319 INFO L125 PetriNetUnfolderBase]: For 1154479/1154651 co-relation queries the response was YES. [2023-11-29 00:26:12,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163283 conditions, 17132 events. 4559/17132 cut-off events. For 1154479/1154651 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 174676 event pairs, 291 based on Foata normal form. 61/16850 useless extension candidates. Maximal degree in co-relation 162442. Up to 4813 conditions per place. [2023-11-29 00:26:12,930 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 703 selfloop transitions, 1117 changer transitions 0/1965 dead transitions. [2023-11-29 00:26:12,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1965 transitions, 87537 flow [2023-11-29 00:26:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 00:26:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-11-29 00:26:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6813 transitions. [2023-11-29 00:26:12,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7421568627450981 [2023-11-29 00:26:12,935 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6813 transitions. [2023-11-29 00:26:12,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6813 transitions. [2023-11-29 00:26:12,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:26:12,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6813 transitions. [2023-11-29 00:26:12,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.25) internal successors, (6813), 36 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:12,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:12,948 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:12,948 INFO L175 Difference]: Start difference. First operand has 829 places, 1795 transitions, 78689 flow. Second operand 36 states and 6813 transitions. [2023-11-29 00:26:12,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 864 places, 1965 transitions, 87537 flow [2023-11-29 00:26:27,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 842 places, 1965 transitions, 86955 flow, removed 198 selfloop flow, removed 22 redundant places. [2023-11-29 00:26:28,035 INFO L231 Difference]: Finished difference. Result has 849 places, 1857 transitions, 84956 flow [2023-11-29 00:26:28,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=78172, PETRI_DIFFERENCE_MINUEND_PLACES=807, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1795, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=84956, PETRI_PLACES=849, PETRI_TRANSITIONS=1857} [2023-11-29 00:26:28,037 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 600 predicate places. [2023-11-29 00:26:28,037 INFO L495 AbstractCegarLoop]: Abstraction has has 849 places, 1857 transitions, 84956 flow [2023-11-29 00:26:28,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:28,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:26:28,038 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] [2023-11-29 00:26:28,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 00:26:28,038 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:26:28,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:28,039 INFO L85 PathProgramCache]: Analyzing trace with hash 742196837, now seen corresponding path program 25 times [2023-11-29 00:26:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:28,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62586998] [2023-11-29 00:26:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:26:28,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62586998] [2023-11-29 00:26:28,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62586998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:26:28,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:26:28,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:26:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738979226] [2023-11-29 00:26:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:26:28,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:26:28,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:26:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:26:34,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:26:34,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 1857 transitions, 84956 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:34,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:26:34,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:26:34,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:26:53,150 INFO L124 PetriNetUnfolderBase]: 4633/17533 cut-off events. [2023-11-29 00:26:53,150 INFO L125 PetriNetUnfolderBase]: For 1263529/1263673 co-relation queries the response was YES. [2023-11-29 00:26:53,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171537 conditions, 17533 events. 4633/17533 cut-off events. For 1263529/1263673 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 180563 event pairs, 218 based on Foata normal form. 69/17252 useless extension candidates. Maximal degree in co-relation 170555. Up to 4798 conditions per place. [2023-11-29 00:26:53,748 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 668 selfloop transitions, 1189 changer transitions 0/2002 dead transitions. [2023-11-29 00:26:53,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 884 places, 2002 transitions, 92721 flow [2023-11-29 00:26:53,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 00:26:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-11-29 00:26:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6811 transitions. [2023-11-29 00:26:53,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7419389978213508 [2023-11-29 00:26:53,753 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6811 transitions. [2023-11-29 00:26:53,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6811 transitions. [2023-11-29 00:26:53,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:26:53,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6811 transitions. [2023-11-29 00:26:53,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.19444444444446) internal successors, (6811), 36 states have internal predecessors, (6811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:53,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:53,766 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:26:53,766 INFO L175 Difference]: Start difference. First operand has 849 places, 1857 transitions, 84956 flow. Second operand 36 states and 6811 transitions. [2023-11-29 00:26:53,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 884 places, 2002 transitions, 92721 flow [2023-11-29 00:27:10,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 2002 transitions, 92048 flow, removed 264 selfloop flow, removed 18 redundant places. [2023-11-29 00:27:10,820 INFO L231 Difference]: Finished difference. Result has 875 places, 1895 transitions, 90725 flow [2023-11-29 00:27:10,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=84287, PETRI_DIFFERENCE_MINUEND_PLACES=831, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=90725, PETRI_PLACES=875, PETRI_TRANSITIONS=1895} [2023-11-29 00:27:10,822 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 626 predicate places. [2023-11-29 00:27:10,822 INFO L495 AbstractCegarLoop]: Abstraction has has 875 places, 1895 transitions, 90725 flow [2023-11-29 00:27:10,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:10,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:27:10,823 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] [2023-11-29 00:27:10,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 00:27:10,823 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:27:10,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1118723449, now seen corresponding path program 26 times [2023-11-29 00:27:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:10,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991600503] [2023-11-29 00:27:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:10,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:27:11,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991600503] [2023-11-29 00:27:11,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991600503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:27:11,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:27:11,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:27:11,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227710539] [2023-11-29 00:27:11,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:27:11,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:27:11,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:11,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:27:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:27:17,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:27:17,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 875 places, 1895 transitions, 90725 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:17,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:27:17,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:27:17,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:27:37,433 INFO L124 PetriNetUnfolderBase]: 4737/17381 cut-off events. [2023-11-29 00:27:37,433 INFO L125 PetriNetUnfolderBase]: For 1413017/1413194 co-relation queries the response was YES. [2023-11-29 00:27:37,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180842 conditions, 17381 events. 4737/17381 cut-off events. For 1413017/1413194 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 176426 event pairs, 540 based on Foata normal form. 60/17073 useless extension candidates. Maximal degree in co-relation 179833. Up to 4867 conditions per place. [2023-11-29 00:27:38,118 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 734 selfloop transitions, 1187 changer transitions 0/2066 dead transitions. [2023-11-29 00:27:38,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 911 places, 2066 transitions, 100163 flow [2023-11-29 00:27:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:27:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 00:27:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 7003 transitions. [2023-11-29 00:27:38,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7422363540010599 [2023-11-29 00:27:38,125 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 7003 transitions. [2023-11-29 00:27:38,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 7003 transitions. [2023-11-29 00:27:38,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:27:38,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 7003 transitions. [2023-11-29 00:27:38,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 189.27027027027026) internal successors, (7003), 37 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:38,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:38,141 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:38,141 INFO L175 Difference]: Start difference. First operand has 875 places, 1895 transitions, 90725 flow. Second operand 37 states and 7003 transitions. [2023-11-29 00:27:38,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 911 places, 2066 transitions, 100163 flow [2023-11-29 00:27:57,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 891 places, 2066 transitions, 99660 flow, removed 107 selfloop flow, removed 20 redundant places. [2023-11-29 00:27:57,322 INFO L231 Difference]: Finished difference. Result has 902 places, 1951 transitions, 97218 flow [2023-11-29 00:27:57,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=90257, PETRI_DIFFERENCE_MINUEND_PLACES=855, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=740, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=97218, PETRI_PLACES=902, PETRI_TRANSITIONS=1951} [2023-11-29 00:27:57,324 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 653 predicate places. [2023-11-29 00:27:57,324 INFO L495 AbstractCegarLoop]: Abstraction has has 902 places, 1951 transitions, 97218 flow [2023-11-29 00:27:57,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:27:57,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:27:57,325 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] [2023-11-29 00:27:57,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 00:27:57,325 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:27:57,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -173668907, now seen corresponding path program 27 times [2023-11-29 00:27:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848954214] [2023-11-29 00:27:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:57,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:27:58,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:58,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848954214] [2023-11-29 00:27:58,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848954214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:27:58,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:27:58,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:27:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657486445] [2023-11-29 00:27:58,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:27:58,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:27:58,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:58,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:27:58,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:28:03,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:28:03,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 902 places, 1951 transitions, 97218 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:03,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:28:03,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:28:03,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:28:23,339 INFO L124 PetriNetUnfolderBase]: 4883/18723 cut-off events. [2023-11-29 00:28:23,339 INFO L125 PetriNetUnfolderBase]: For 1562135/1562219 co-relation queries the response was YES. [2023-11-29 00:28:23,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194197 conditions, 18723 events. 4883/18723 cut-off events. For 1562135/1562219 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 196482 event pairs, 228 based on Foata normal form. 73/18419 useless extension candidates. Maximal degree in co-relation 193159. Up to 5123 conditions per place. [2023-11-29 00:28:23,892 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 757 selfloop transitions, 1229 changer transitions 0/2131 dead transitions. [2023-11-29 00:28:23,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 2131 transitions, 107723 flow [2023-11-29 00:28:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 00:28:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-29 00:28:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6434 transitions. [2023-11-29 00:28:23,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7420991926182238 [2023-11-29 00:28:23,897 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 6434 transitions. [2023-11-29 00:28:23,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 6434 transitions. [2023-11-29 00:28:23,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:28:23,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 6434 transitions. [2023-11-29 00:28:23,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 189.23529411764707) internal successors, (6434), 34 states have internal predecessors, (6434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:23,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:23,909 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 255.0) internal successors, (8925), 35 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:23,909 INFO L175 Difference]: Start difference. First operand has 902 places, 1951 transitions, 97218 flow. Second operand 34 states and 6434 transitions. [2023-11-29 00:28:23,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 2131 transitions, 107723 flow [2023-11-29 00:28:44,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 917 places, 2131 transitions, 107100 flow, removed 243 selfloop flow, removed 18 redundant places. [2023-11-29 00:28:44,555 INFO L231 Difference]: Finished difference. Result has 925 places, 2023 transitions, 105699 flow [2023-11-29 00:28:44,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=96647, PETRI_DIFFERENCE_MINUEND_PLACES=884, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=105699, PETRI_PLACES=925, PETRI_TRANSITIONS=2023} [2023-11-29 00:28:44,557 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 676 predicate places. [2023-11-29 00:28:44,557 INFO L495 AbstractCegarLoop]: Abstraction has has 925 places, 2023 transitions, 105699 flow [2023-11-29 00:28:44,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:44,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:28:44,558 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] [2023-11-29 00:28:44,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 00:28:44,558 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:28:44,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:44,558 INFO L85 PathProgramCache]: Analyzing trace with hash 727631755, now seen corresponding path program 28 times [2023-11-29 00:28:44,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:44,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405881738] [2023-11-29 00:28:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:44,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405881738] [2023-11-29 00:28:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405881738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:28:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:28:45,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:28:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057348089] [2023-11-29 00:28:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:28:45,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:28:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:28:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:28:50,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:28:50,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 2023 transitions, 105699 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:50,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:28:50,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:28:50,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:29:13,123 INFO L124 PetriNetUnfolderBase]: 4950/18369 cut-off events. [2023-11-29 00:29:13,123 INFO L125 PetriNetUnfolderBase]: For 1737918/1738100 co-relation queries the response was YES. [2023-11-29 00:29:13,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202326 conditions, 18369 events. 4950/18369 cut-off events. For 1737918/1738100 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 189605 event pairs, 564 based on Foata normal form. 59/18034 useless extension candidates. Maximal degree in co-relation 201262. Up to 5224 conditions per place. [2023-11-29 00:29:13,765 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 749 selfloop transitions, 1269 changer transitions 0/2163 dead transitions. [2023-11-29 00:29:13,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 2163 transitions, 113977 flow [2023-11-29 00:29:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 00:29:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-11-29 00:29:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6626 transitions. [2023-11-29 00:29:13,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7424089635854342 [2023-11-29 00:29:13,773 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 6626 transitions. [2023-11-29 00:29:13,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 6626 transitions. [2023-11-29 00:29:13,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:29:13,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 6626 transitions. [2023-11-29 00:29:13,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 189.31428571428572) internal successors, (6626), 35 states have internal predecessors, (6626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:13,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 255.0) internal successors, (9180), 36 states have internal predecessors, (9180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:13,792 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 255.0) internal successors, (9180), 36 states have internal predecessors, (9180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:13,792 INFO L175 Difference]: Start difference. First operand has 925 places, 2023 transitions, 105699 flow. Second operand 35 states and 6626 transitions. [2023-11-29 00:29:13,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 2163 transitions, 113977 flow [2023-11-29 00:29:36,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 2163 transitions, 113669 flow, removed 70 selfloop flow, removed 20 redundant places. [2023-11-29 00:29:36,962 INFO L231 Difference]: Finished difference. Result has 948 places, 2061 transitions, 112607 flow [2023-11-29 00:29:36,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=105394, PETRI_DIFFERENCE_MINUEND_PLACES=905, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1232, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=773, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=112607, PETRI_PLACES=948, PETRI_TRANSITIONS=2061} [2023-11-29 00:29:36,964 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 699 predicate places. [2023-11-29 00:29:36,965 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 2061 transitions, 112607 flow [2023-11-29 00:29:36,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:36,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:29:36,965 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] [2023-11-29 00:29:36,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 00:29:36,965 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:29:36,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1063712673, now seen corresponding path program 29 times [2023-11-29 00:29:36,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:36,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576904031] [2023-11-29 00:29:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:36,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:37,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:37,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576904031] [2023-11-29 00:29:37,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576904031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:37,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:37,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:29:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884272360] [2023-11-29 00:29:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:37,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:29:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:29:37,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:29:43,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:29:43,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 2061 transitions, 112607 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:43,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:29:43,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:29:43,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:30:08,744 INFO L124 PetriNetUnfolderBase]: 5020/19494 cut-off events. [2023-11-29 00:30:08,744 INFO L125 PetriNetUnfolderBase]: For 1908157/1908347 co-relation queries the response was YES. [2023-11-29 00:30:09,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212987 conditions, 19494 events. 5020/19494 cut-off events. For 1908157/1908347 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 206694 event pairs, 274 based on Foata normal form. 75/19166 useless extension candidates. Maximal degree in co-relation 211896. Up to 5256 conditions per place. [2023-11-29 00:30:09,308 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 757 selfloop transitions, 1290 changer transitions 0/2192 dead transitions. [2023-11-29 00:30:09,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 2192 transitions, 120349 flow [2023-11-29 00:30:09,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:30:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 00:30:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 7002 transitions. [2023-11-29 00:30:09,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7421303656597774 [2023-11-29 00:30:09,313 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 7002 transitions. [2023-11-29 00:30:09,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 7002 transitions. [2023-11-29 00:30:09,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:30:09,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 7002 transitions. [2023-11-29 00:30:09,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 189.24324324324326) internal successors, (7002), 37 states have internal predecessors, (7002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:09,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:09,324 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 255.0) internal successors, (9690), 38 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:09,324 INFO L175 Difference]: Start difference. First operand has 948 places, 2061 transitions, 112607 flow. Second operand 37 states and 7002 transitions. [2023-11-29 00:30:09,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 984 places, 2192 transitions, 120349 flow [2023-11-29 00:30:37,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 2192 transitions, 119862 flow, removed 131 selfloop flow, removed 21 redundant places. [2023-11-29 00:30:37,880 INFO L231 Difference]: Finished difference. Result has 969 places, 2089 transitions, 118831 flow [2023-11-29 00:30:37,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=112186, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=118831, PETRI_PLACES=969, PETRI_TRANSITIONS=2089} [2023-11-29 00:30:37,882 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 720 predicate places. [2023-11-29 00:30:37,882 INFO L495 AbstractCegarLoop]: Abstraction has has 969 places, 2089 transitions, 118831 flow [2023-11-29 00:30:37,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:37,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:30:37,883 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] [2023-11-29 00:30:37,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 00:30:37,883 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:30:37,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1401832933, now seen corresponding path program 30 times [2023-11-29 00:30:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:37,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118718185] [2023-11-29 00:30:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:37,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:30:38,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:38,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118718185] [2023-11-29 00:30:38,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118718185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:38,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:38,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:30:38,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901242817] [2023-11-29 00:30:38,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:38,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:30:38,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:38,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:30:38,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:30:44,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:30:44,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 969 places, 2089 transitions, 118831 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:44,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:30:44,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:30:44,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:31:08,582 INFO L124 PetriNetUnfolderBase]: 5022/19018 cut-off events. [2023-11-29 00:31:08,582 INFO L125 PetriNetUnfolderBase]: For 2079976/2080165 co-relation queries the response was YES. [2023-11-29 00:31:09,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218982 conditions, 19018 events. 5022/19018 cut-off events. For 2079976/2080165 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 199090 event pairs, 568 based on Foata normal form. 61/18666 useless extension candidates. Maximal degree in co-relation 217867. Up to 5251 conditions per place. [2023-11-29 00:31:09,263 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 787 selfloop transitions, 1280 changer transitions 0/2212 dead transitions. [2023-11-29 00:31:09,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 2212 transitions, 125866 flow [2023-11-29 00:31:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 00:31:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-11-29 00:31:09,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6808 transitions. [2023-11-29 00:31:09,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7416122004357298 [2023-11-29 00:31:09,269 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6808 transitions. [2023-11-29 00:31:09,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6808 transitions. [2023-11-29 00:31:09,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:31:09,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6808 transitions. [2023-11-29 00:31:09,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.11111111111111) internal successors, (6808), 36 states have internal predecessors, (6808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:31:09,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:31:09,282 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 255.0) internal successors, (9435), 37 states have internal predecessors, (9435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:31:09,282 INFO L175 Difference]: Start difference. First operand has 969 places, 2089 transitions, 118831 flow. Second operand 36 states and 6808 transitions. [2023-11-29 00:31:09,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1004 places, 2212 transitions, 125866 flow [2023-11-29 00:31:38,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 980 places, 2212 transitions, 125114 flow, removed 232 selfloop flow, removed 24 redundant places. [2023-11-29 00:31:38,662 INFO L231 Difference]: Finished difference. Result has 985 places, 2107 transitions, 122956 flow [2023-11-29 00:31:38,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=118127, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=122956, PETRI_PLACES=985, PETRI_TRANSITIONS=2107} [2023-11-29 00:31:38,665 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 736 predicate places. [2023-11-29 00:31:38,665 INFO L495 AbstractCegarLoop]: Abstraction has has 985 places, 2107 transitions, 122956 flow [2023-11-29 00:31:38,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:31:38,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:31:38,665 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] [2023-11-29 00:31:38,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 00:31:38,666 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-29 00:31:38,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:31:38,666 INFO L85 PathProgramCache]: Analyzing trace with hash 26435749, now seen corresponding path program 31 times [2023-11-29 00:31:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:31:38,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342369970] [2023-11-29 00:31:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:31:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:31:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:31:39,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:31:39,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342369970] [2023-11-29 00:31:39,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342369970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:31:39,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:31:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:31:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501335004] [2023-11-29 00:31:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:31:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:31:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:31:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:31:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:31:44,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-29 00:31:44,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 985 places, 2107 transitions, 122956 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:31:44,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:31:44,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-29 00:31:44,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:32:09,534 INFO L124 PetriNetUnfolderBase]: 5027/20023 cut-off events. [2023-11-29 00:32:09,534 INFO L125 PetriNetUnfolderBase]: For 2190302/2190390 co-relation queries the response was YES. [2023-11-29 00:32:10,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225791 conditions, 20023 events. 5027/20023 cut-off events. For 2190302/2190390 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 215925 event pairs, 210 based on Foata normal form. 85/19691 useless extension candidates. Maximal degree in co-relation 224797. Up to 5222 conditions per place. [2023-11-29 00:32:10,212 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 725 selfloop transitions, 1363 changer transitions 0/2233 dead transitions. [2023-11-29 00:32:10,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 2233 transitions, 130283 flow [2023-11-29 00:32:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:32:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-29 00:32:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7187 transitions. [2023-11-29 00:32:10,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7416924664602683 [2023-11-29 00:32:10,218 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7187 transitions. [2023-11-29 00:32:10,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7187 transitions. [2023-11-29 00:32:10,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:32:10,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7187 transitions. [2023-11-29 00:32:10,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 189.1315789473684) internal successors, (7187), 38 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:32:10,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:32:10,231 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 255.0) internal successors, (9945), 39 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:32:10,231 INFO L175 Difference]: Start difference. First operand has 985 places, 2107 transitions, 122956 flow. Second operand 38 states and 7187 transitions. [2023-11-29 00:32:10,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 2233 transitions, 130283 flow