./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_2-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU --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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:25,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:25,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:05:25,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:25,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:25,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:25,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:25,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:25,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:25,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:25,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:25,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:25,185 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:25,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:25,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:25,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:25,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:25,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:25,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:25,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:25,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:25,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:25,193 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:05:25,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:25,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:05:25,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:25,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:25,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:25,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:25,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:25,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:25,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:25,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:25,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:25,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:25,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:25,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:25,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:25,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:25,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:25,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:25,203 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_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2024-10-31 22:05:25,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:25,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:25,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:25,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:25,540 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:25,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/reorder_2-race.i Unable to find full path for "g++" [2024-10-31 22:05:27,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:27,959 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:27,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/sv-benchmarks/c/pthread/reorder_2-race.i [2024-10-31 22:05:27,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/data/474ee4a6c/879ac78789d04aa28875ebedd82d24be/FLAG357de86fa [2024-10-31 22:05:28,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/data/474ee4a6c/879ac78789d04aa28875ebedd82d24be [2024-10-31 22:05:28,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:28,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:28,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:28,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:28,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:28,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:28" (1/1) ... [2024-10-31 22:05:28,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a358e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:28, skipping insertion in model container [2024-10-31 22:05:28,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:28" (1/1) ... [2024-10-31 22:05:28,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:29,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:29,256 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:29,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:29,504 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:29,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29 WrapperNode [2024-10-31 22:05:29,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:29,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:29,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:29,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:29,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,600 INFO L138 Inliner]: procedures = 370, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2024-10-31 22:05:29,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:29,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:29,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:29,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:29,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:29,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:29,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:29,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:29,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (1/1) ... [2024-10-31 22:05:29,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:29,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:29,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:29,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056bd544-368d-4c42-bff8-3ba0d8b19d67/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:05:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:05:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:05:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-31 22:05:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-31 22:05:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:05:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-31 22:05:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-31 22:05:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:05:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:29,755 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:05:29,948 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:29,951 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:30,604 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:05:30,604 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:30,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:30,643 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:05:30,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:30 BoogieIcfgContainer [2024-10-31 22:05:30,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:30,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:30,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:30,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:30,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:28" (1/3) ... [2024-10-31 22:05:30,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d93c30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:30, skipping insertion in model container [2024-10-31 22:05:30,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:29" (2/3) ... [2024-10-31 22:05:30,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d93c30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:30, skipping insertion in model container [2024-10-31 22:05:30,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:30" (3/3) ... [2024-10-31 22:05:30,657 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-race.i [2024-10-31 22:05:30,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:30,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-31 22:05:30,680 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:05:30,788 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:05:30,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 279 transitions, 578 flow [2024-10-31 22:05:31,148 INFO L124 PetriNetUnfolderBase]: 45/581 cut-off events. [2024-10-31 22:05:31,149 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:05:31,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 581 events. 45/581 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2599 event pairs, 0 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 285. Up to 8 conditions per place. [2024-10-31 22:05:31,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 279 transitions, 578 flow [2024-10-31 22:05:31,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 279 transitions, 578 flow [2024-10-31 22:05:31,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:31,218 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4abbf25e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:31,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-31 22:05:31,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:31,228 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-31 22:05:31,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:05:31,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:31,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:31,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:31,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash 742031993, now seen corresponding path program 1 times [2024-10-31 22:05:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:31,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016983836] [2024-10-31 22:05:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:31,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:31,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:31,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016983836] [2024-10-31 22:05:31,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016983836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:31,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:31,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652389493] [2024-10-31 22:05:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:31,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:31,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:31,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 279 [2024-10-31 22:05:31,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 279 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:31,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:31,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 279 [2024-10-31 22:05:31,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:31,904 INFO L124 PetriNetUnfolderBase]: 16/540 cut-off events. [2024-10-31 22:05:31,904 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-31 22:05:31,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 540 events. 16/540 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2323 event pairs, 0 based on Foata normal form. 27/482 useless extension candidates. Maximal degree in co-relation 282. Up to 27 conditions per place. [2024-10-31 22:05:31,913 INFO L140 encePairwiseOnDemand]: 262/279 looper letters, 14 selfloop transitions, 1 changer transitions 4/261 dead transitions. [2024-10-31 22:05:31,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 261 transitions, 572 flow [2024-10-31 22:05:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2024-10-31 22:05:31,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9223416965352449 [2024-10-31 22:05:31,947 INFO L175 Difference]: Start difference. First operand has 263 places, 279 transitions, 578 flow. Second operand 3 states and 772 transitions. [2024-10-31 22:05:31,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 261 transitions, 572 flow [2024-10-31 22:05:31,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 261 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:31,963 INFO L231 Difference]: Finished difference. Result has 259 places, 257 transitions, 536 flow [2024-10-31 22:05:31,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=259, PETRI_TRANSITIONS=257} [2024-10-31 22:05:31,975 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -4 predicate places. [2024-10-31 22:05:31,975 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 257 transitions, 536 flow [2024-10-31 22:05:31,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:31,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:31,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:31,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:31,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:31,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:31,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1528250090, now seen corresponding path program 1 times [2024-10-31 22:05:31,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:31,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891875876] [2024-10-31 22:05:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:32,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:32,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891875876] [2024-10-31 22:05:32,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891875876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:32,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:32,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:32,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680889232] [2024-10-31 22:05:32,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:32,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:32,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 279 [2024-10-31 22:05:32,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 257 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:32,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:32,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 279 [2024-10-31 22:05:32,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:32,443 INFO L124 PetriNetUnfolderBase]: 30/1022 cut-off events. [2024-10-31 22:05:32,443 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:05:32,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 1022 events. 30/1022 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5956 event pairs, 0 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 511. Up to 14 conditions per place. [2024-10-31 22:05:32,456 INFO L140 encePairwiseOnDemand]: 277/279 looper letters, 13 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2024-10-31 22:05:32,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 262 transitions, 592 flow [2024-10-31 22:05:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-10-31 22:05:32,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9390681003584229 [2024-10-31 22:05:32,462 INFO L175 Difference]: Start difference. First operand has 259 places, 257 transitions, 536 flow. Second operand 3 states and 786 transitions. [2024-10-31 22:05:32,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 262 transitions, 592 flow [2024-10-31 22:05:32,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 262 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:32,474 INFO L231 Difference]: Finished difference. Result has 255 places, 256 transitions, 535 flow [2024-10-31 22:05:32,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=255, PETRI_TRANSITIONS=256} [2024-10-31 22:05:32,479 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -8 predicate places. [2024-10-31 22:05:32,479 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 256 transitions, 535 flow [2024-10-31 22:05:32,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:32,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:32,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:32,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:32,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:32,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash 130963354, now seen corresponding path program 1 times [2024-10-31 22:05:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:32,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97247746] [2024-10-31 22:05:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:32,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:32,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97247746] [2024-10-31 22:05:32,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97247746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:32,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:32,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:32,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550062694] [2024-10-31 22:05:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:32,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:32,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 279 [2024-10-31 22:05:32,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 256 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:32,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:32,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 279 [2024-10-31 22:05:32,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:32,894 INFO L124 PetriNetUnfolderBase]: 70/1139 cut-off events. [2024-10-31 22:05:32,895 INFO L125 PetriNetUnfolderBase]: For 94/110 co-relation queries the response was YES. [2024-10-31 22:05:32,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 1139 events. 70/1139 cut-off events. For 94/110 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7206 event pairs, 16 based on Foata normal form. 9/1003 useless extension candidates. Maximal degree in co-relation 662. Up to 125 conditions per place. [2024-10-31 22:05:32,908 INFO L140 encePairwiseOnDemand]: 267/279 looper letters, 15 selfloop transitions, 5 changer transitions 5/256 dead transitions. [2024-10-31 22:05:32,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 256 transitions, 587 flow [2024-10-31 22:05:32,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:32,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 755 transitions. [2024-10-31 22:05:32,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9020310633213859 [2024-10-31 22:05:32,912 INFO L175 Difference]: Start difference. First operand has 255 places, 256 transitions, 535 flow. Second operand 3 states and 755 transitions. [2024-10-31 22:05:32,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 256 transitions, 587 flow [2024-10-31 22:05:32,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 256 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:32,923 INFO L231 Difference]: Finished difference. Result has 251 places, 249 transitions, 539 flow [2024-10-31 22:05:32,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=539, PETRI_PLACES=251, PETRI_TRANSITIONS=249} [2024-10-31 22:05:32,925 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -12 predicate places. [2024-10-31 22:05:32,925 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 249 transitions, 539 flow [2024-10-31 22:05:32,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:32,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:32,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:32,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:05:32,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:32,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1362172448, now seen corresponding path program 1 times [2024-10-31 22:05:32,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:32,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76255332] [2024-10-31 22:05:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:32,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:33,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:33,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76255332] [2024-10-31 22:05:33,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76255332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:33,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:33,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658924991] [2024-10-31 22:05:33,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:33,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:33,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 279 [2024-10-31 22:05:33,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 249 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:33,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:33,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 279 [2024-10-31 22:05:33,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:33,316 INFO L124 PetriNetUnfolderBase]: 34/1032 cut-off events. [2024-10-31 22:05:33,316 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:05:33,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1032 events. 34/1032 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6049 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1010. Up to 64 conditions per place. [2024-10-31 22:05:33,326 INFO L140 encePairwiseOnDemand]: 273/279 looper letters, 14 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-10-31 22:05:33,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 246 transitions, 565 flow [2024-10-31 22:05:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2024-10-31 22:05:33,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9091995221027479 [2024-10-31 22:05:33,329 INFO L175 Difference]: Start difference. First operand has 251 places, 249 transitions, 539 flow. Second operand 3 states and 761 transitions. [2024-10-31 22:05:33,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 246 transitions, 565 flow [2024-10-31 22:05:33,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 246 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:33,335 INFO L231 Difference]: Finished difference. Result has 247 places, 246 transitions, 541 flow [2024-10-31 22:05:33,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=247, PETRI_TRANSITIONS=246} [2024-10-31 22:05:33,338 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -16 predicate places. [2024-10-31 22:05:33,338 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 246 transitions, 541 flow [2024-10-31 22:05:33,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:33,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:33,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:33,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:05:33,340 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:33,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2006199919, now seen corresponding path program 1 times [2024-10-31 22:05:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:33,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917384595] [2024-10-31 22:05:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:33,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:33,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:33,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917384595] [2024-10-31 22:05:33,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917384595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:33,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:33,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:33,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586750824] [2024-10-31 22:05:33,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:33,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:33,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:33,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 279 [2024-10-31 22:05:33,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 246 transitions, 541 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:33,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:33,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 279 [2024-10-31 22:05:33,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:33,730 INFO L124 PetriNetUnfolderBase]: 34/1031 cut-off events. [2024-10-31 22:05:33,730 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:05:33,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 1031 events. 34/1031 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6038 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1007. Up to 52 conditions per place. [2024-10-31 22:05:33,739 INFO L140 encePairwiseOnDemand]: 276/279 looper letters, 14 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2024-10-31 22:05:33,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 245 transitions, 571 flow [2024-10-31 22:05:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2024-10-31 22:05:33,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9127837514934289 [2024-10-31 22:05:33,743 INFO L175 Difference]: Start difference. First operand has 247 places, 246 transitions, 541 flow. Second operand 3 states and 764 transitions. [2024-10-31 22:05:33,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 245 transitions, 571 flow [2024-10-31 22:05:33,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 245 transitions, 571 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:33,750 INFO L231 Difference]: Finished difference. Result has 248 places, 245 transitions, 543 flow [2024-10-31 22:05:33,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=248, PETRI_TRANSITIONS=245} [2024-10-31 22:05:33,752 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -15 predicate places. [2024-10-31 22:05:33,753 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 245 transitions, 543 flow [2024-10-31 22:05:33,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:33,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:33,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:33,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:33,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:33,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:33,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1579447646, now seen corresponding path program 1 times [2024-10-31 22:05:33,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:33,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721965279] [2024-10-31 22:05:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:33,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:33,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721965279] [2024-10-31 22:05:33,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721965279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:33,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:33,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:33,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163869376] [2024-10-31 22:05:33,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:33,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:33,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:33,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:33,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 279 [2024-10-31 22:05:33,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 245 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:33,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:33,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 279 [2024-10-31 22:05:33,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:34,170 INFO L124 PetriNetUnfolderBase]: 34/1030 cut-off events. [2024-10-31 22:05:34,171 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:05:34,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1030 events. 34/1030 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6034 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 979. Up to 34 conditions per place. [2024-10-31 22:05:34,183 INFO L140 encePairwiseOnDemand]: 277/279 looper letters, 13 selfloop transitions, 1 changer transitions 0/250 dead transitions. [2024-10-31 22:05:34,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 250 transitions, 599 flow [2024-10-31 22:05:34,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:34,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:34,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-10-31 22:05:34,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9390681003584229 [2024-10-31 22:05:34,187 INFO L175 Difference]: Start difference. First operand has 248 places, 245 transitions, 543 flow. Second operand 3 states and 786 transitions. [2024-10-31 22:05:34,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 250 transitions, 599 flow [2024-10-31 22:05:34,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 250 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:34,195 INFO L231 Difference]: Finished difference. Result has 247 places, 244 transitions, 539 flow [2024-10-31 22:05:34,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=539, PETRI_PLACES=247, PETRI_TRANSITIONS=244} [2024-10-31 22:05:34,197 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -16 predicate places. [2024-10-31 22:05:34,197 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 244 transitions, 539 flow [2024-10-31 22:05:34,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:34,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:34,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:34,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:05:34,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:34,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:34,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1000410487, now seen corresponding path program 1 times [2024-10-31 22:05:34,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:34,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136009663] [2024-10-31 22:05:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:34,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:34,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136009663] [2024-10-31 22:05:34,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136009663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:34,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:34,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160805182] [2024-10-31 22:05:34,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:34,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:34,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:34,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 279 [2024-10-31 22:05:34,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 244 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:34,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:34,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 279 [2024-10-31 22:05:34,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:34,489 INFO L124 PetriNetUnfolderBase]: 34/1029 cut-off events. [2024-10-31 22:05:34,489 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-31 22:05:34,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 1029 events. 34/1029 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6032 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1010. Up to 56 conditions per place. [2024-10-31 22:05:34,500 INFO L140 encePairwiseOnDemand]: 276/279 looper letters, 15 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2024-10-31 22:05:34,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 243 transitions, 571 flow [2024-10-31 22:05:34,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2024-10-31 22:05:34,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9127837514934289 [2024-10-31 22:05:34,503 INFO L175 Difference]: Start difference. First operand has 247 places, 244 transitions, 539 flow. Second operand 3 states and 764 transitions. [2024-10-31 22:05:34,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 243 transitions, 571 flow [2024-10-31 22:05:34,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 243 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:34,509 INFO L231 Difference]: Finished difference. Result has 247 places, 243 transitions, 540 flow [2024-10-31 22:05:34,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=247, PETRI_TRANSITIONS=243} [2024-10-31 22:05:34,511 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -16 predicate places. [2024-10-31 22:05:34,511 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 243 transitions, 540 flow [2024-10-31 22:05:34,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:34,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:34,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:34,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:05:34,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:34,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1630380282, now seen corresponding path program 1 times [2024-10-31 22:05:34,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:34,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992246632] [2024-10-31 22:05:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:34,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:34,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992246632] [2024-10-31 22:05:34,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992246632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:34,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:34,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:34,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784392952] [2024-10-31 22:05:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:34,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:34,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:34,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:34,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 279 [2024-10-31 22:05:34,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 243 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:34,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:34,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 279 [2024-10-31 22:05:34,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:34,864 INFO L124 PetriNetUnfolderBase]: 32/1017 cut-off events. [2024-10-31 22:05:34,864 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:05:34,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 1017 events. 32/1017 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5920 event pairs, 0 based on Foata normal form. 2/906 useless extension candidates. Maximal degree in co-relation 982. Up to 42 conditions per place. [2024-10-31 22:05:34,875 INFO L140 encePairwiseOnDemand]: 277/279 looper letters, 13 selfloop transitions, 0 changer transitions 1/242 dead transitions. [2024-10-31 22:05:34,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 242 transitions, 563 flow [2024-10-31 22:05:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2024-10-31 22:05:34,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9139784946236559 [2024-10-31 22:05:34,878 INFO L175 Difference]: Start difference. First operand has 247 places, 243 transitions, 540 flow. Second operand 3 states and 765 transitions. [2024-10-31 22:05:34,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 242 transitions, 563 flow [2024-10-31 22:05:34,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 242 transitions, 555 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 22:05:34,888 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 527 flow [2024-10-31 22:05:34,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2024-10-31 22:05:34,889 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -17 predicate places. [2024-10-31 22:05:34,889 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 527 flow [2024-10-31 22:05:34,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:34,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:34,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:34,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:05:34,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:34,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:34,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1672723619, now seen corresponding path program 1 times [2024-10-31 22:05:34,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:34,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718039703] [2024-10-31 22:05:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:34,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:35,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718039703] [2024-10-31 22:05:35,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718039703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:35,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576060600] [2024-10-31 22:05:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:35,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:35,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:35,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:35,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 279 [2024-10-31 22:05:35,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 527 flow. Second operand has 6 states, 6 states have (on average 226.66666666666666) internal successors, (1360), 6 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:35,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:35,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 279 [2024-10-31 22:05:35,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:36,339 INFO L124 PetriNetUnfolderBase]: 32/1011 cut-off events. [2024-10-31 22:05:36,339 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-31 22:05:36,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 1011 events. 32/1011 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5848 event pairs, 0 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1317. Up to 193 conditions per place. [2024-10-31 22:05:36,351 INFO L140 encePairwiseOnDemand]: 272/279 looper letters, 34 selfloop transitions, 6 changer transitions 0/240 dead transitions. [2024-10-31 22:05:36,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 240 transitions, 605 flow [2024-10-31 22:05:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:05:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1391 transitions. [2024-10-31 22:05:36,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8309438470728794 [2024-10-31 22:05:36,355 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 527 flow. Second operand 6 states and 1391 transitions. [2024-10-31 22:05:36,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 240 transitions, 605 flow [2024-10-31 22:05:36,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 240 transitions, 603 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:36,363 INFO L231 Difference]: Finished difference. Result has 248 places, 240 transitions, 535 flow [2024-10-31 22:05:36,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=535, PETRI_PLACES=248, PETRI_TRANSITIONS=240} [2024-10-31 22:05:36,364 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -15 predicate places. [2024-10-31 22:05:36,365 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 240 transitions, 535 flow [2024-10-31 22:05:36,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.66666666666666) internal successors, (1360), 6 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:36,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:36,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:36,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:05:36,367 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1899290296, now seen corresponding path program 1 times [2024-10-31 22:05:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680210017] [2024-10-31 22:05:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:36,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:36,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680210017] [2024-10-31 22:05:36,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680210017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:36,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:36,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:05:36,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260311197] [2024-10-31 22:05:36,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:36,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 279 [2024-10-31 22:05:36,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 240 transitions, 535 flow. Second operand has 4 states, 4 states have (on average 246.5) internal successors, (986), 4 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:36,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:36,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 279 [2024-10-31 22:05:36,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:36,962 INFO L124 PetriNetUnfolderBase]: 24/901 cut-off events. [2024-10-31 22:05:36,962 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-10-31 22:05:36,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 901 events. 24/901 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4752 event pairs, 0 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1075. Up to 43 conditions per place. [2024-10-31 22:05:36,970 INFO L140 encePairwiseOnDemand]: 266/279 looper letters, 31 selfloop transitions, 11 changer transitions 1/262 dead transitions. [2024-10-31 22:05:36,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 262 transitions, 689 flow [2024-10-31 22:05:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:05:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1025 transitions. [2024-10-31 22:05:36,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9184587813620072 [2024-10-31 22:05:36,974 INFO L175 Difference]: Start difference. First operand has 248 places, 240 transitions, 535 flow. Second operand 4 states and 1025 transitions. [2024-10-31 22:05:36,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 262 transitions, 689 flow [2024-10-31 22:05:36,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 262 transitions, 677 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:05:36,981 INFO L231 Difference]: Finished difference. Result has 248 places, 249 transitions, 605 flow [2024-10-31 22:05:36,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=605, PETRI_PLACES=248, PETRI_TRANSITIONS=249} [2024-10-31 22:05:36,983 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -15 predicate places. [2024-10-31 22:05:36,983 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 249 transitions, 605 flow [2024-10-31 22:05:36,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 246.5) internal successors, (986), 4 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:36,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:36,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:36,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:05:36,985 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:36,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:36,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1434213192, now seen corresponding path program 1 times [2024-10-31 22:05:36,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:36,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741410073] [2024-10-31 22:05:36,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:36,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:37,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741410073] [2024-10-31 22:05:37,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741410073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:37,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:37,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:37,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256844584] [2024-10-31 22:05:37,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:37,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:37,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:37,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:37,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:37,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 279 [2024-10-31 22:05:37,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 249 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:37,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:37,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 279 [2024-10-31 22:05:37,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:37,477 INFO L124 PetriNetUnfolderBase]: 105/1759 cut-off events. [2024-10-31 22:05:37,477 INFO L125 PetriNetUnfolderBase]: For 216/585 co-relation queries the response was YES. [2024-10-31 22:05:37,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2224 conditions, 1759 events. 105/1759 cut-off events. For 216/585 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12913 event pairs, 27 based on Foata normal form. 10/1561 useless extension candidates. Maximal degree in co-relation 2215. Up to 120 conditions per place. [2024-10-31 22:05:37,504 INFO L140 encePairwiseOnDemand]: 273/279 looper letters, 15 selfloop transitions, 5 changer transitions 0/256 dead transitions. [2024-10-31 22:05:37,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 256 transitions, 668 flow [2024-10-31 22:05:37,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:37,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2024-10-31 22:05:37,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931899641577061 [2024-10-31 22:05:37,565 INFO L175 Difference]: Start difference. First operand has 248 places, 249 transitions, 605 flow. Second operand 3 states and 780 transitions. [2024-10-31 22:05:37,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 256 transitions, 668 flow [2024-10-31 22:05:37,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 256 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:37,575 INFO L231 Difference]: Finished difference. Result has 251 places, 253 transitions, 641 flow [2024-10-31 22:05:37,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=251, PETRI_TRANSITIONS=253} [2024-10-31 22:05:37,576 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -12 predicate places. [2024-10-31 22:05:37,577 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 253 transitions, 641 flow [2024-10-31 22:05:37,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:37,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:37,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:37,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:05:37,578 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting setThreadErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:37,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:37,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1574315940, now seen corresponding path program 1 times [2024-10-31 22:05:37,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:37,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812415992] [2024-10-31 22:05:37,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:37,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:37,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:37,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812415992] [2024-10-31 22:05:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812415992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:37,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:37,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:37,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710809100] [2024-10-31 22:05:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:37,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:37,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:37,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:37,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 279 [2024-10-31 22:05:37,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 253 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:37,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:37,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 279 [2024-10-31 22:05:37,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:38,198 INFO L124 PetriNetUnfolderBase]: 172/2271 cut-off events. [2024-10-31 22:05:38,198 INFO L125 PetriNetUnfolderBase]: For 337/942 co-relation queries the response was YES. [2024-10-31 22:05:38,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2963 conditions, 2271 events. 172/2271 cut-off events. For 337/942 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 18571 event pairs, 34 based on Foata normal form. 8/1998 useless extension candidates. Maximal degree in co-relation 2953. Up to 156 conditions per place. [2024-10-31 22:05:38,238 INFO L140 encePairwiseOnDemand]: 273/279 looper letters, 15 selfloop transitions, 5 changer transitions 8/260 dead transitions. [2024-10-31 22:05:38,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 260 transitions, 704 flow [2024-10-31 22:05:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2024-10-31 22:05:38,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931899641577061 [2024-10-31 22:05:38,241 INFO L175 Difference]: Start difference. First operand has 251 places, 253 transitions, 641 flow. Second operand 3 states and 780 transitions. [2024-10-31 22:05:38,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 260 transitions, 704 flow [2024-10-31 22:05:38,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 260 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:38,250 INFO L231 Difference]: Finished difference. Result has 253 places, 249 transitions, 650 flow [2024-10-31 22:05:38,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=253, PETRI_TRANSITIONS=249} [2024-10-31 22:05:38,252 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -10 predicate places. [2024-10-31 22:05:38,252 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 249 transitions, 650 flow [2024-10-31 22:05:38,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:38,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:38,253 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:38,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:05:38,254 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:05:38,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:38,257 INFO L85 PathProgramCache]: Analyzing trace with hash 751873512, now seen corresponding path program 1 times [2024-10-31 22:05:38,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:38,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800877324] [2024-10-31 22:05:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:38,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:05:38,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:05:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:05:38,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:05:38,397 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:05:38,399 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-10-31 22:05:38,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-10-31 22:05:38,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-10-31 22:05:38,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-10-31 22:05:38,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-10-31 22:05:38,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-10-31 22:05:38,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-10-31 22:05:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-10-31 22:05:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-10-31 22:05:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-10-31 22:05:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-10-31 22:05:38,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-10-31 22:05:38,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-10-31 22:05:38,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-10-31 22:05:38,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-10-31 22:05:38,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-10-31 22:05:38,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-10-31 22:05:38,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-10-31 22:05:38,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-10-31 22:05:38,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-10-31 22:05:38,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-10-31 22:05:38,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-10-31 22:05:38,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-10-31 22:05:38,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-10-31 22:05:38,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-10-31 22:05:38,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-10-31 22:05:38,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-10-31 22:05:38,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-10-31 22:05:38,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-10-31 22:05:38,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 37 remaining) [2024-10-31 22:05:38,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-10-31 22:05:38,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-10-31 22:05:38,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-10-31 22:05:38,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-10-31 22:05:38,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-10-31 22:05:38,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-10-31 22:05:38,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-10-31 22:05:38,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:05:38,418 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:38,422 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:05:38,422 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:05:38,493 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-31 22:05:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 346 transitions, 736 flow [2024-10-31 22:05:38,996 INFO L124 PetriNetUnfolderBase]: 173/1802 cut-off events. [2024-10-31 22:05:38,997 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-31 22:05:39,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1891 conditions, 1802 events. 173/1802 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11206 event pairs, 2 based on Foata normal form. 0/1473 useless extension candidates. Maximal degree in co-relation 1036. Up to 32 conditions per place. [2024-10-31 22:05:39,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 346 transitions, 736 flow [2024-10-31 22:05:39,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 346 transitions, 736 flow [2024-10-31 22:05:39,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:39,054 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4abbf25e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:39,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-31 22:05:39,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:39,059 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-31 22:05:39,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:05:39,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:39,059 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:39,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:39,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash -509845295, now seen corresponding path program 1 times [2024-10-31 22:05:39,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878910348] [2024-10-31 22:05:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878910348] [2024-10-31 22:05:39,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878910348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:39,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:39,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306553950] [2024-10-31 22:05:39,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:39,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:39,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:39,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:39,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 346 [2024-10-31 22:05:39,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 346 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:39,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:39,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 346 [2024-10-31 22:05:39,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:39,495 INFO L124 PetriNetUnfolderBase]: 77/1673 cut-off events. [2024-10-31 22:05:39,496 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-10-31 22:05:39,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1878 conditions, 1673 events. 77/1673 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10486 event pairs, 1 based on Foata normal form. 179/1594 useless extension candidates. Maximal degree in co-relation 1021. Up to 114 conditions per place. [2024-10-31 22:05:39,527 INFO L140 encePairwiseOnDemand]: 327/346 looper letters, 20 selfloop transitions, 1 changer transitions 4/324 dead transitions. [2024-10-31 22:05:39,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 324 transitions, 734 flow [2024-10-31 22:05:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2024-10-31 22:05:39,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9190751445086706 [2024-10-31 22:05:39,530 INFO L175 Difference]: Start difference. First operand has 325 places, 346 transitions, 736 flow. Second operand 3 states and 954 transitions. [2024-10-31 22:05:39,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 324 transitions, 734 flow [2024-10-31 22:05:39,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 324 transitions, 734 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:39,537 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 686 flow [2024-10-31 22:05:39,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2024-10-31 22:05:39,538 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -6 predicate places. [2024-10-31 22:05:39,539 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 686 flow [2024-10-31 22:05:39,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:39,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:39,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:39,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:05:39,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:39,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1374760170, now seen corresponding path program 1 times [2024-10-31 22:05:39,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:39,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936332775] [2024-10-31 22:05:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:39,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:39,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936332775] [2024-10-31 22:05:39,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936332775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:39,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:39,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:39,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512324800] [2024-10-31 22:05:39,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:39,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:39,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:39,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:39,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:39,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 346 [2024-10-31 22:05:39,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:39,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:39,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 346 [2024-10-31 22:05:39,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:40,560 INFO L124 PetriNetUnfolderBase]: 152/3288 cut-off events. [2024-10-31 22:05:40,561 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-10-31 22:05:40,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 3288 events. 152/3288 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 26361 event pairs, 2 based on Foata normal form. 0/2783 useless extension candidates. Maximal degree in co-relation 1934. Up to 74 conditions per place. [2024-10-31 22:05:40,622 INFO L140 encePairwiseOnDemand]: 344/346 looper letters, 25 selfloop transitions, 1 changer transitions 0/331 dead transitions. [2024-10-31 22:05:40,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 331 transitions, 800 flow [2024-10-31 22:05:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:40,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2024-10-31 22:05:40,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9364161849710982 [2024-10-31 22:05:40,628 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 686 flow. Second operand 3 states and 972 transitions. [2024-10-31 22:05:40,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 331 transitions, 800 flow [2024-10-31 22:05:40,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 331 transitions, 799 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:40,638 INFO L231 Difference]: Finished difference. Result has 315 places, 319 transitions, 685 flow [2024-10-31 22:05:40,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=315, PETRI_TRANSITIONS=319} [2024-10-31 22:05:40,640 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -10 predicate places. [2024-10-31 22:05:40,640 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 319 transitions, 685 flow [2024-10-31 22:05:40,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:40,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:40,642 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:40,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:05:40,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:40,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash -332256526, now seen corresponding path program 1 times [2024-10-31 22:05:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629363144] [2024-10-31 22:05:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:40,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:40,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629363144] [2024-10-31 22:05:40,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629363144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:40,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:40,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:40,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934176891] [2024-10-31 22:05:40,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:40,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:40,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:40,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:40,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 346 [2024-10-31 22:05:40,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 319 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:40,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:40,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 346 [2024-10-31 22:05:40,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:42,492 INFO L124 PetriNetUnfolderBase]: 1122/6621 cut-off events. [2024-10-31 22:05:42,493 INFO L125 PetriNetUnfolderBase]: For 1282/1378 co-relation queries the response was YES. [2024-10-31 22:05:42,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9004 conditions, 6621 events. 1122/6621 cut-off events. For 1282/1378 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 65649 event pairs, 424 based on Foata normal form. 49/5965 useless extension candidates. Maximal degree in co-relation 4498. Up to 1753 conditions per place. [2024-10-31 22:05:42,611 INFO L140 encePairwiseOnDemand]: 332/346 looper letters, 32 selfloop transitions, 6 changer transitions 3/326 dead transitions. [2024-10-31 22:05:42,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 326 transitions, 806 flow [2024-10-31 22:05:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-10-31 22:05:42,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9026974951830443 [2024-10-31 22:05:42,616 INFO L175 Difference]: Start difference. First operand has 315 places, 319 transitions, 685 flow. Second operand 3 states and 937 transitions. [2024-10-31 22:05:42,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 326 transitions, 806 flow [2024-10-31 22:05:42,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 326 transitions, 805 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:42,626 INFO L231 Difference]: Finished difference. Result has 310 places, 314 transitions, 702 flow [2024-10-31 22:05:42,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=310, PETRI_TRANSITIONS=314} [2024-10-31 22:05:42,628 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -15 predicate places. [2024-10-31 22:05:42,628 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 314 transitions, 702 flow [2024-10-31 22:05:42,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:42,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:42,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:42,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:05:42,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:42,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash 160132664, now seen corresponding path program 1 times [2024-10-31 22:05:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:42,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952267129] [2024-10-31 22:05:42,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:42,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:42,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:42,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:42,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952267129] [2024-10-31 22:05:42,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952267129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:42,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:42,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574902265] [2024-10-31 22:05:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:42,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:42,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:42,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 346 [2024-10-31 22:05:42,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 314 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:42,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:42,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 346 [2024-10-31 22:05:42,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:43,905 INFO L124 PetriNetUnfolderBase]: 268/3704 cut-off events. [2024-10-31 22:05:43,905 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-10-31 22:05:43,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4527 conditions, 3704 events. 268/3704 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31423 event pairs, 20 based on Foata normal form. 0/3312 useless extension candidates. Maximal degree in co-relation 3292. Up to 302 conditions per place. [2024-10-31 22:05:43,968 INFO L140 encePairwiseOnDemand]: 340/346 looper letters, 20 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2024-10-31 22:05:43,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 311 transitions, 740 flow [2024-10-31 22:05:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2024-10-31 22:05:43,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065510597302505 [2024-10-31 22:05:43,973 INFO L175 Difference]: Start difference. First operand has 310 places, 314 transitions, 702 flow. Second operand 3 states and 941 transitions. [2024-10-31 22:05:43,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 311 transitions, 740 flow [2024-10-31 22:05:43,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 311 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:43,981 INFO L231 Difference]: Finished difference. Result has 306 places, 311 transitions, 704 flow [2024-10-31 22:05:43,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=306, PETRI_TRANSITIONS=311} [2024-10-31 22:05:43,982 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -19 predicate places. [2024-10-31 22:05:43,982 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 311 transitions, 704 flow [2024-10-31 22:05:43,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:43,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:43,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:43,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:05:43,984 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:43,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash 357575623, now seen corresponding path program 1 times [2024-10-31 22:05:43,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:43,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128032260] [2024-10-31 22:05:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128032260] [2024-10-31 22:05:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128032260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:44,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:44,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:44,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747736853] [2024-10-31 22:05:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:44,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:44,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:44,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:44,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:44,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 346 [2024-10-31 22:05:44,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 311 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:44,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:44,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 346 [2024-10-31 22:05:44,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:44,917 INFO L124 PetriNetUnfolderBase]: 268/3703 cut-off events. [2024-10-31 22:05:44,918 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-10-31 22:05:44,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4507 conditions, 3703 events. 268/3703 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31464 event pairs, 20 based on Foata normal form. 0/3312 useless extension candidates. Maximal degree in co-relation 3271. Up to 302 conditions per place. [2024-10-31 22:05:45,001 INFO L140 encePairwiseOnDemand]: 343/346 looper letters, 20 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2024-10-31 22:05:45,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 310 transitions, 746 flow [2024-10-31 22:05:45,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2024-10-31 22:05:45,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094412331406551 [2024-10-31 22:05:45,005 INFO L175 Difference]: Start difference. First operand has 306 places, 311 transitions, 704 flow. Second operand 3 states and 944 transitions. [2024-10-31 22:05:45,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 310 transitions, 746 flow [2024-10-31 22:05:45,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 310 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:45,015 INFO L231 Difference]: Finished difference. Result has 307 places, 310 transitions, 706 flow [2024-10-31 22:05:45,016 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=307, PETRI_TRANSITIONS=310} [2024-10-31 22:05:45,016 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -18 predicate places. [2024-10-31 22:05:45,017 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 310 transitions, 706 flow [2024-10-31 22:05:45,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:45,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:45,018 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:45,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:05:45,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:45,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1712893514, now seen corresponding path program 1 times [2024-10-31 22:05:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:45,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124532782] [2024-10-31 22:05:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:45,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:45,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124532782] [2024-10-31 22:05:45,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124532782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:45,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:45,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870181670] [2024-10-31 22:05:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:45,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:45,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 346 [2024-10-31 22:05:45,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 310 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:45,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:45,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 346 [2024-10-31 22:05:45,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:46,266 INFO L124 PetriNetUnfolderBase]: 268/3702 cut-off events. [2024-10-31 22:05:46,266 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-10-31 22:05:46,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 3702 events. 268/3702 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31441 event pairs, 20 based on Foata normal form. 0/3312 useless extension candidates. Maximal degree in co-relation 3193. Up to 302 conditions per place. [2024-10-31 22:05:46,344 INFO L140 encePairwiseOnDemand]: 344/346 looper letters, 25 selfloop transitions, 1 changer transitions 0/321 dead transitions. [2024-10-31 22:05:46,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 321 transitions, 820 flow [2024-10-31 22:05:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2024-10-31 22:05:46,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9364161849710982 [2024-10-31 22:05:46,349 INFO L175 Difference]: Start difference. First operand has 307 places, 310 transitions, 706 flow. Second operand 3 states and 972 transitions. [2024-10-31 22:05:46,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 321 transitions, 820 flow [2024-10-31 22:05:46,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 321 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:46,359 INFO L231 Difference]: Finished difference. Result has 306 places, 309 transitions, 702 flow [2024-10-31 22:05:46,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=306, PETRI_TRANSITIONS=309} [2024-10-31 22:05:46,361 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -19 predicate places. [2024-10-31 22:05:46,361 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 309 transitions, 702 flow [2024-10-31 22:05:46,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:46,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:46,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:46,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:05:46,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:46,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 486757239, now seen corresponding path program 1 times [2024-10-31 22:05:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168347370] [2024-10-31 22:05:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:46,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168347370] [2024-10-31 22:05:46,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168347370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:46,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:46,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:46,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682353502] [2024-10-31 22:05:46,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:46,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:46,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:46,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:46,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 346 [2024-10-31 22:05:46,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 309 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:46,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:46,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 346 [2024-10-31 22:05:46,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:47,588 INFO L124 PetriNetUnfolderBase]: 268/3701 cut-off events. [2024-10-31 22:05:47,588 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-10-31 22:05:47,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4519 conditions, 3701 events. 268/3701 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31448 event pairs, 20 based on Foata normal form. 0/3312 useless extension candidates. Maximal degree in co-relation 3282. Up to 302 conditions per place. [2024-10-31 22:05:47,666 INFO L140 encePairwiseOnDemand]: 343/346 looper letters, 21 selfloop transitions, 2 changer transitions 0/308 dead transitions. [2024-10-31 22:05:47,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 308 transitions, 746 flow [2024-10-31 22:05:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2024-10-31 22:05:47,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094412331406551 [2024-10-31 22:05:47,670 INFO L175 Difference]: Start difference. First operand has 306 places, 309 transitions, 702 flow. Second operand 3 states and 944 transitions. [2024-10-31 22:05:47,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 308 transitions, 746 flow [2024-10-31 22:05:47,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 308 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:47,686 INFO L231 Difference]: Finished difference. Result has 306 places, 308 transitions, 703 flow [2024-10-31 22:05:47,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=306, PETRI_TRANSITIONS=308} [2024-10-31 22:05:47,687 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -19 predicate places. [2024-10-31 22:05:47,688 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 308 transitions, 703 flow [2024-10-31 22:05:47,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:47,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:47,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:47,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:05:47,690 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:47,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:47,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2083018758, now seen corresponding path program 1 times [2024-10-31 22:05:47,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:47,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050956673] [2024-10-31 22:05:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:47,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050956673] [2024-10-31 22:05:47,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050956673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:47,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:47,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:47,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719784233] [2024-10-31 22:05:47,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:47,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:47,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:47,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:47,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 346 [2024-10-31 22:05:47,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 308 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:47,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:47,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 346 [2024-10-31 22:05:47,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:48,819 INFO L124 PetriNetUnfolderBase]: 266/3689 cut-off events. [2024-10-31 22:05:48,820 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-10-31 22:05:48,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4457 conditions, 3689 events. 266/3689 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31258 event pairs, 20 based on Foata normal form. 2/3302 useless extension candidates. Maximal degree in co-relation 3220. Up to 302 conditions per place. [2024-10-31 22:05:48,878 INFO L140 encePairwiseOnDemand]: 344/346 looper letters, 19 selfloop transitions, 0 changer transitions 1/307 dead transitions. [2024-10-31 22:05:48,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 307 transitions, 738 flow [2024-10-31 22:05:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:48,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2024-10-31 22:05:48,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9104046242774566 [2024-10-31 22:05:48,884 INFO L175 Difference]: Start difference. First operand has 306 places, 308 transitions, 703 flow. Second operand 3 states and 945 transitions. [2024-10-31 22:05:48,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 307 transitions, 738 flow [2024-10-31 22:05:48,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 307 transitions, 730 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 22:05:48,895 INFO L231 Difference]: Finished difference. Result has 305 places, 306 transitions, 690 flow [2024-10-31 22:05:48,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=305, PETRI_TRANSITIONS=306} [2024-10-31 22:05:48,896 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -20 predicate places. [2024-10-31 22:05:48,897 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 306 transitions, 690 flow [2024-10-31 22:05:48,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:48,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:48,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:48,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:05:48,899 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:48,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1274907643, now seen corresponding path program 1 times [2024-10-31 22:05:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:48,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743127632] [2024-10-31 22:05:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:49,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:49,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:49,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743127632] [2024-10-31 22:05:49,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743127632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:49,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:49,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:49,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552640497] [2024-10-31 22:05:49,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:49,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:49,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:49,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:49,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:49,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 346 [2024-10-31 22:05:49,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 306 transitions, 690 flow. Second operand has 6 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:49,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:49,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 346 [2024-10-31 22:05:49,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:50,423 INFO L124 PetriNetUnfolderBase]: 266/3681 cut-off events. [2024-10-31 22:05:50,424 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2024-10-31 22:05:50,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5006 conditions, 3681 events. 266/3681 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31256 event pairs, 20 based on Foata normal form. 0/3332 useless extension candidates. Maximal degree in co-relation 4997. Up to 717 conditions per place. [2024-10-31 22:05:50,495 INFO L140 encePairwiseOnDemand]: 339/346 looper letters, 40 selfloop transitions, 6 changer transitions 0/305 dead transitions. [2024-10-31 22:05:50,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 305 transitions, 780 flow [2024-10-31 22:05:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:05:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1745 transitions. [2024-10-31 22:05:50,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405587668593449 [2024-10-31 22:05:50,499 INFO L175 Difference]: Start difference. First operand has 305 places, 306 transitions, 690 flow. Second operand 6 states and 1745 transitions. [2024-10-31 22:05:50,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 305 transitions, 780 flow [2024-10-31 22:05:50,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 778 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:50,507 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 698 flow [2024-10-31 22:05:50,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=698, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2024-10-31 22:05:50,508 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -18 predicate places. [2024-10-31 22:05:50,509 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 698 flow [2024-10-31 22:05:50,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:50,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:50,510 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:50,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:05:50,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:50,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1794172256, now seen corresponding path program 1 times [2024-10-31 22:05:50,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:50,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579371177] [2024-10-31 22:05:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579371177] [2024-10-31 22:05:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579371177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:50,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:05:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959650758] [2024-10-31 22:05:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:50,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:50,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:50,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:50,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:50,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 346 [2024-10-31 22:05:50,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 698 flow. Second operand has 4 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:50,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:50,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 346 [2024-10-31 22:05:50,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:51,523 INFO L124 PetriNetUnfolderBase]: 269/3842 cut-off events. [2024-10-31 22:05:51,524 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-10-31 22:05:51,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4851 conditions, 3842 events. 269/3842 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 33309 event pairs, 17 based on Foata normal form. 7/3498 useless extension candidates. Maximal degree in co-relation 4842. Up to 298 conditions per place. [2024-10-31 22:05:51,577 INFO L140 encePairwiseOnDemand]: 333/346 looper letters, 53 selfloop transitions, 11 changer transitions 0/342 dead transitions. [2024-10-31 22:05:51,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 342 transitions, 964 flow [2024-10-31 22:05:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:05:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1278 transitions. [2024-10-31 22:05:51,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9234104046242775 [2024-10-31 22:05:51,581 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 698 flow. Second operand 4 states and 1278 transitions. [2024-10-31 22:05:51,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 342 transitions, 964 flow [2024-10-31 22:05:51,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 342 transitions, 952 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:05:51,588 INFO L231 Difference]: Finished difference. Result has 307 places, 314 transitions, 768 flow [2024-10-31 22:05:51,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=768, PETRI_PLACES=307, PETRI_TRANSITIONS=314} [2024-10-31 22:05:51,588 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -18 predicate places. [2024-10-31 22:05:51,589 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 314 transitions, 768 flow [2024-10-31 22:05:51,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:51,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:51,589 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:51,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:05:51,590 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-31 22:05:51,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1119823747, now seen corresponding path program 1 times [2024-10-31 22:05:51,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502090057] [2024-10-31 22:05:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:51,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502090057] [2024-10-31 22:05:51,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502090057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:51,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440141176] [2024-10-31 22:05:51,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:51,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:51,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:51,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 346 [2024-10-31 22:05:51,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 314 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:51,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:51,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 346 [2024-10-31 22:05:51,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand