./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/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_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/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_2e82bd31-3601-4e41-a0c3-c6e1235d5878/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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:43,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:43,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:18:43,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:43,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:43,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:43,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:43,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:43,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:43,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:43,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:43,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:43,795 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:43,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:43,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:43,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:43,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:43,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:43,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:43,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:43,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:43,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:43,804 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:18:43,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:43,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:18:43,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:43,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:43,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:43,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:43,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:43,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:43,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:43,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:43,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:43,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:43,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:43,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:43,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:43,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:43,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:43,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:43,811 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_2e82bd31-3601-4e41-a0c3-c6e1235d5878/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2024-10-31 22:18:44,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:44,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:44,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:44,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:44,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:44,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i Unable to find full path for "g++" [2024-10-31 22:18:46,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:46,494 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:46,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-10-31 22:18:46,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/data/b5e2ef4ae/70e73934cc0746cba181497e8a016774/FLAG50ad9fe18 [2024-10-31 22:18:46,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/data/b5e2ef4ae/70e73934cc0746cba181497e8a016774 [2024-10-31 22:18:46,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:46,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:46,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:46,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:46,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:46,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:46" (1/1) ... [2024-10-31 22:18:46,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6978d9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:46, skipping insertion in model container [2024-10-31 22:18:46,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:46" (1/1) ... [2024-10-31 22:18:46,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:47,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:47,212 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:47,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:47,378 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:47,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47 WrapperNode [2024-10-31 22:18:47,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:47,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:47,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:47,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:47,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,468 INFO L138 Inliner]: procedures = 223, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 221 [2024-10-31 22:18:47,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:47,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:47,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:47,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:47,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:47,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:47,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:47,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:47,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (1/1) ... [2024-10-31 22:18:47,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:47,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e82bd31-3601-4e41-a0c3-c6e1235d5878/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2024-10-31 22:18:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2024-10-31 22:18:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:18:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:18:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:18:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:18:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:18:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:47,632 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 22:18:47,846 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:47,849 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:48,398 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:18:48,399 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:48,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:48,416 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:18:48,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:48 BoogieIcfgContainer [2024-10-31 22:18:48,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:48,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:48,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:48,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:48,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:46" (1/3) ... [2024-10-31 22:18:48,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ede0432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:48, skipping insertion in model container [2024-10-31 22:18:48,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:47" (2/3) ... [2024-10-31 22:18:48,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ede0432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:48, skipping insertion in model container [2024-10-31 22:18:48,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:48" (3/3) ... [2024-10-31 22:18:48,425 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2024-10-31 22:18:48,444 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:48,444 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-31 22:18:48,445 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:18:48,556 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:18:48,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 266 transitions, 539 flow [2024-10-31 22:18:48,751 INFO L124 PetriNetUnfolderBase]: 13/265 cut-off events. [2024-10-31 22:18:48,751 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:18:48,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 265 events. 13/265 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 539 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2024-10-31 22:18:48,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 266 transitions, 539 flow [2024-10-31 22:18:48,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 259 transitions, 521 flow [2024-10-31 22:18:48,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:48,805 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;@54e0a832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:48,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-31 22:18:48,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:48,819 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-31 22:18:48,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:48,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:48,820 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] [2024-10-31 22:18:48,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:18:48,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1008521894, now seen corresponding path program 1 times [2024-10-31 22:18:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:48,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091583744] [2024-10-31 22:18:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:49,732 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 22:18:49,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:49,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091583744] [2024-10-31 22:18:49,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091583744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:49,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:49,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472925644] [2024-10-31 22:18:49,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:49,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:49,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:49,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:49,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:50,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-10-31 22:18:50,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 259 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 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 22:18:50,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:50,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-10-31 22:18:50,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:51,617 INFO L124 PetriNetUnfolderBase]: 927/4296 cut-off events. [2024-10-31 22:18:51,617 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:18:51,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6037 conditions, 4296 events. 927/4296 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34093 event pairs, 768 based on Foata normal form. 398/4280 useless extension candidates. Maximal degree in co-relation 5978. Up to 1732 conditions per place. [2024-10-31 22:18:51,643 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2024-10-31 22:18:51,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 246 transitions, 629 flow [2024-10-31 22:18:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:18:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-31 22:18:51,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7550125313283208 [2024-10-31 22:18:51,671 INFO L175 Difference]: Start difference. First operand has 250 places, 259 transitions, 521 flow. Second operand 6 states and 1205 transitions. [2024-10-31 22:18:51,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 246 transitions, 629 flow [2024-10-31 22:18:51,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 246 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:18:51,682 INFO L231 Difference]: Finished difference. Result has 250 places, 246 transitions, 504 flow [2024-10-31 22:18:51,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=250, PETRI_TRANSITIONS=246} [2024-10-31 22:18:51,692 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 0 predicate places. [2024-10-31 22:18:51,692 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 246 transitions, 504 flow [2024-10-31 22:18:51,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 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 22:18:51,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:51,694 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] [2024-10-31 22:18:51,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:51,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:18:51,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:51,696 INFO L85 PathProgramCache]: Analyzing trace with hash 143388735, now seen corresponding path program 1 times [2024-10-31 22:18:51,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:51,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587644559] [2024-10-31 22:18:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:51,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,169 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 22:18:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587644559] [2024-10-31 22:18:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587644559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:52,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:52,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201938974] [2024-10-31 22:18:52,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:52,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:52,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:52,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:52,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-10-31 22:18:52,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 246 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 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 22:18:52,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:52,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-10-31 22:18:52,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:53,533 INFO L124 PetriNetUnfolderBase]: 927/4295 cut-off events. [2024-10-31 22:18:53,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:53,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4295 events. 927/4295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34050 event pairs, 768 based on Foata normal form. 0/3882 useless extension candidates. Maximal degree in co-relation 5990. Up to 1732 conditions per place. [2024-10-31 22:18:53,554 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/245 dead transitions. [2024-10-31 22:18:53,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 245 transitions, 636 flow [2024-10-31 22:18:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:53,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:18:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2024-10-31 22:18:53,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7493734335839599 [2024-10-31 22:18:53,558 INFO L175 Difference]: Start difference. First operand has 250 places, 246 transitions, 504 flow. Second operand 6 states and 1196 transitions. [2024-10-31 22:18:53,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 245 transitions, 636 flow [2024-10-31 22:18:53,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 245 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:18:53,567 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 502 flow [2024-10-31 22:18:53,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=249, PETRI_TRANSITIONS=245} [2024-10-31 22:18:53,570 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -1 predicate places. [2024-10-31 22:18:53,571 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 502 flow [2024-10-31 22:18:53,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 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 22:18:53,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:53,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:53,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:53,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:18:53,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2017236769, now seen corresponding path program 1 times [2024-10-31 22:18:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425945614] [2024-10-31 22:18:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:53,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:54,080 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 22:18:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:54,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425945614] [2024-10-31 22:18:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425945614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:54,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357303740] [2024-10-31 22:18:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:54,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:54,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:54,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:54,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:54,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-10-31 22:18:54,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 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 22:18:54,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:54,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-10-31 22:18:54,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:55,510 INFO L124 PetriNetUnfolderBase]: 330/2437 cut-off events. [2024-10-31 22:18:55,513 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:18:55,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3046 conditions, 2437 events. 330/2437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18133 event pairs, 94 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2994. Up to 494 conditions per place. [2024-10-31 22:18:55,530 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 37 selfloop transitions, 44 changer transitions 0/287 dead transitions. [2024-10-31 22:18:55,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 287 transitions, 748 flow [2024-10-31 22:18:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:18:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-10-31 22:18:55,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-10-31 22:18:55,534 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 502 flow. Second operand 6 states and 1385 transitions. [2024-10-31 22:18:55,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 287 transitions, 748 flow [2024-10-31 22:18:55,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 287 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:18:55,542 INFO L231 Difference]: Finished difference. Result has 254 places, 287 transitions, 792 flow [2024-10-31 22:18:55,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=254, PETRI_TRANSITIONS=287} [2024-10-31 22:18:55,543 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 4 predicate places. [2024-10-31 22:18:55,543 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 287 transitions, 792 flow [2024-10-31 22:18:55,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 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 22:18:55,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:55,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:55,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:55,546 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:18:55,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash -903695032, now seen corresponding path program 1 times [2024-10-31 22:18:55,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:55,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49842279] [2024-10-31 22:18:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:55,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:55,914 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 22:18:55,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:55,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49842279] [2024-10-31 22:18:55,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49842279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:55,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:55,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:55,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476038323] [2024-10-31 22:18:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:55,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:55,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:56,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 266 [2024-10-31 22:18:56,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 287 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 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 22:18:56,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:56,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 266 [2024-10-31 22:18:56,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:57,912 INFO L124 PetriNetUnfolderBase]: 485/4433 cut-off events. [2024-10-31 22:18:57,913 INFO L125 PetriNetUnfolderBase]: For 587/765 co-relation queries the response was YES. [2024-10-31 22:18:57,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6525 conditions, 4433 events. 485/4433 cut-off events. For 587/765 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 37641 event pairs, 73 based on Foata normal form. 68/4125 useless extension candidates. Maximal degree in co-relation 6465. Up to 613 conditions per place. [2024-10-31 22:18:57,943 INFO L140 encePairwiseOnDemand]: 242/266 looper letters, 80 selfloop transitions, 41 changer transitions 0/333 dead transitions. [2024-10-31 22:18:57,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 1162 flow [2024-10-31 22:18:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:18:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2024-10-31 22:18:57,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8533834586466166 [2024-10-31 22:18:57,948 INFO L175 Difference]: Start difference. First operand has 254 places, 287 transitions, 792 flow. Second operand 6 states and 1362 transitions. [2024-10-31 22:18:57,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 1162 flow [2024-10-31 22:18:57,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 333 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:18:57,965 INFO L231 Difference]: Finished difference. Result has 264 places, 327 transitions, 1134 flow [2024-10-31 22:18:57,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1134, PETRI_PLACES=264, PETRI_TRANSITIONS=327} [2024-10-31 22:18:57,966 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 14 predicate places. [2024-10-31 22:18:57,966 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 327 transitions, 1134 flow [2024-10-31 22:18:57,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 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 22:18:57,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:57,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:57,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:18:57,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:18:57,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1844824793, now seen corresponding path program 1 times [2024-10-31 22:18:57,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:57,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394699902] [2024-10-31 22:18:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:58,470 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 22:18:58,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394699902] [2024-10-31 22:18:58,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394699902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:58,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:58,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797613796] [2024-10-31 22:18:58,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:58,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:58,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:59,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-10-31 22:18:59,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 327 transitions, 1134 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 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 22:18:59,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:59,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-10-31 22:18:59,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:00,428 INFO L124 PetriNetUnfolderBase]: 735/5267 cut-off events. [2024-10-31 22:19:00,428 INFO L125 PetriNetUnfolderBase]: For 2499/3038 co-relation queries the response was YES. [2024-10-31 22:19:00,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9546 conditions, 5267 events. 735/5267 cut-off events. For 2499/3038 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 45717 event pairs, 80 based on Foata normal form. 106/4992 useless extension candidates. Maximal degree in co-relation 9481. Up to 1019 conditions per place. [2024-10-31 22:19:00,476 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 95 selfloop transitions, 86 changer transitions 0/409 dead transitions. [2024-10-31 22:19:00,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 409 transitions, 1968 flow [2024-10-31 22:19:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:19:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:19:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-10-31 22:19:00,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-10-31 22:19:00,480 INFO L175 Difference]: Start difference. First operand has 264 places, 327 transitions, 1134 flow. Second operand 6 states and 1385 transitions. [2024-10-31 22:19:00,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 409 transitions, 1968 flow [2024-10-31 22:19:00,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 409 transitions, 1968 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:00,498 INFO L231 Difference]: Finished difference. Result has 274 places, 409 transitions, 2010 flow [2024-10-31 22:19:00,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2010, PETRI_PLACES=274, PETRI_TRANSITIONS=409} [2024-10-31 22:19:00,499 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 24 predicate places. [2024-10-31 22:19:00,500 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 409 transitions, 2010 flow [2024-10-31 22:19:00,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 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 22:19:00,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:00,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:00,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:19:00,502 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:19:00,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2101041956, now seen corresponding path program 1 times [2024-10-31 22:19:00,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:00,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883972179] [2024-10-31 22:19:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:00,882 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 22:19:00,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:00,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883972179] [2024-10-31 22:19:00,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883972179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:00,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:00,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:00,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137029959] [2024-10-31 22:19:00,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:00,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:00,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:00,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:00,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:01,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 266 [2024-10-31 22:19:01,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 409 transitions, 2010 flow. Second operand has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 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 22:19:01,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:01,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 266 [2024-10-31 22:19:01,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:03,070 INFO L124 PetriNetUnfolderBase]: 881/6062 cut-off events. [2024-10-31 22:19:03,071 INFO L125 PetriNetUnfolderBase]: For 5263/5996 co-relation queries the response was YES. [2024-10-31 22:19:03,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 6062 events. 881/6062 cut-off events. For 5263/5996 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 54646 event pairs, 48 based on Foata normal form. 249/5927 useless extension candidates. Maximal degree in co-relation 11986. Up to 705 conditions per place. [2024-10-31 22:19:03,112 INFO L140 encePairwiseOnDemand]: 255/266 looper letters, 98 selfloop transitions, 62 changer transitions 0/470 dead transitions. [2024-10-31 22:19:03,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 470 transitions, 2686 flow [2024-10-31 22:19:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:19:03,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:19:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2024-10-31 22:19:03,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972431077694235 [2024-10-31 22:19:03,116 INFO L175 Difference]: Start difference. First operand has 274 places, 409 transitions, 2010 flow. Second operand 6 states and 1432 transitions. [2024-10-31 22:19:03,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 470 transitions, 2686 flow [2024-10-31 22:19:03,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 470 transitions, 2686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:03,147 INFO L231 Difference]: Finished difference. Result has 284 places, 467 transitions, 2678 flow [2024-10-31 22:19:03,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2010, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=284, PETRI_TRANSITIONS=467} [2024-10-31 22:19:03,150 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 34 predicate places. [2024-10-31 22:19:03,150 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 467 transitions, 2678 flow [2024-10-31 22:19:03,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 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 22:19:03,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:03,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:03,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:19:03,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:19:03,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 846692282, now seen corresponding path program 1 times [2024-10-31 22:19:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94383784] [2024-10-31 22:19:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:03,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:03,728 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 22:19:03,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:03,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94383784] [2024-10-31 22:19:03,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94383784] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:03,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:03,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:03,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219953356] [2024-10-31 22:19:03,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:03,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:03,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:03,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:03,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:04,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 266 [2024-10-31 22:19:04,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 467 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 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 22:19:04,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:04,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 266 [2024-10-31 22:19:04,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:06,264 INFO L124 PetriNetUnfolderBase]: 1106/7260 cut-off events. [2024-10-31 22:19:06,265 INFO L125 PetriNetUnfolderBase]: For 9785/10506 co-relation queries the response was YES. [2024-10-31 22:19:06,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15942 conditions, 7260 events. 1106/7260 cut-off events. For 9785/10506 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 69874 event pairs, 80 based on Foata normal form. 132/7005 useless extension candidates. Maximal degree in co-relation 15867. Up to 1305 conditions per place. [2024-10-31 22:19:06,312 INFO L140 encePairwiseOnDemand]: 245/266 looper letters, 215 selfloop transitions, 70 changer transitions 0/532 dead transitions. [2024-10-31 22:19:06,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 532 transitions, 3686 flow [2024-10-31 22:19:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:19:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:19:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1398 transitions. [2024-10-31 22:19:06,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8759398496240601 [2024-10-31 22:19:06,316 INFO L175 Difference]: Start difference. First operand has 284 places, 467 transitions, 2678 flow. Second operand 6 states and 1398 transitions. [2024-10-31 22:19:06,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 532 transitions, 3686 flow [2024-10-31 22:19:06,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 532 transitions, 3686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:06,355 INFO L231 Difference]: Finished difference. Result has 294 places, 529 transitions, 3452 flow [2024-10-31 22:19:06,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2678, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3452, PETRI_PLACES=294, PETRI_TRANSITIONS=529} [2024-10-31 22:19:06,357 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 44 predicate places. [2024-10-31 22:19:06,357 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 529 transitions, 3452 flow [2024-10-31 22:19:06,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 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 22:19:06,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:06,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:06,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:19:06,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:19:06,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1592000322, now seen corresponding path program 1 times [2024-10-31 22:19:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:06,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757126217] [2024-10-31 22:19:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:06,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:06,883 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 22:19:06,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757126217] [2024-10-31 22:19:06,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757126217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:06,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:06,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570454648] [2024-10-31 22:19:06,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:06,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:06,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:06,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:07,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 266 [2024-10-31 22:19:07,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 529 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 22:19:07,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:07,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 266 [2024-10-31 22:19:07,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:10,836 INFO L124 PetriNetUnfolderBase]: 4630/15261 cut-off events. [2024-10-31 22:19:10,836 INFO L125 PetriNetUnfolderBase]: For 17969/18105 co-relation queries the response was YES. [2024-10-31 22:19:10,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41019 conditions, 15261 events. 4630/15261 cut-off events. For 17969/18105 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 139748 event pairs, 2055 based on Foata normal form. 40/14517 useless extension candidates. Maximal degree in co-relation 40939. Up to 8642 conditions per place. [2024-10-31 22:19:11,003 INFO L140 encePairwiseOnDemand]: 227/266 looper letters, 301 selfloop transitions, 208 changer transitions 0/694 dead transitions. [2024-10-31 22:19:11,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 694 transitions, 5296 flow [2024-10-31 22:19:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:19:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:19:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1300 transitions. [2024-10-31 22:19:11,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8145363408521303 [2024-10-31 22:19:11,009 INFO L175 Difference]: Start difference. First operand has 294 places, 529 transitions, 3452 flow. Second operand 6 states and 1300 transitions. [2024-10-31 22:19:11,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 694 transitions, 5296 flow [2024-10-31 22:19:11,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 694 transitions, 5124 flow, removed 86 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:11,139 INFO L231 Difference]: Finished difference. Result has 304 places, 694 transitions, 5072 flow [2024-10-31 22:19:11,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3292, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5072, PETRI_PLACES=304, PETRI_TRANSITIONS=694} [2024-10-31 22:19:11,144 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 54 predicate places. [2024-10-31 22:19:11,145 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 694 transitions, 5072 flow [2024-10-31 22:19:11,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 22:19:11,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:11,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:11,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:19:11,147 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-10-31 22:19:11,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash -941239682, now seen corresponding path program 1 times [2024-10-31 22:19:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:11,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848747761] [2024-10-31 22:19:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:11,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:11,734 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 22:19:11,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:11,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848747761] [2024-10-31 22:19:11,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848747761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:11,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:11,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015853598] [2024-10-31 22:19:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:11,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:11,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:12,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 266 [2024-10-31 22:19:12,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 694 transitions, 5072 flow. Second operand has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 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 22:19:12,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:12,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 266 [2024-10-31 22:19:12,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand