./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.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_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/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_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/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_d5b0e730-fefe-493a-b09b-828ecd6b2d85/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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:35,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:35,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:03:35,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:35,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:35,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:35,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:35,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:35,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:35,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:35,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:35,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:35,335 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:35,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:35,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:35,339 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:35,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:35,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:35,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:35,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:35,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:35,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:35,345 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:03:35,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:35,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:35,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:35,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:35,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:35,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:35,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:35,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:35,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:35,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:35,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:35,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:35,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:35,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:35,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:35,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:35,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:35,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:35,353 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_d5b0e730-fefe-493a-b09b-828ecd6b2d85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-10-31 22:03:35,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:35,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:35,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:35,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:35,727 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:35,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i Unable to find full path for "g++" [2024-10-31 22:03:37,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:38,142 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:38,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-31 22:03:38,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/data/8fb31ee11/be3d4069f9d04b8aabcaf529154ec6a1/FLAG435cebd9e [2024-10-31 22:03:38,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/data/8fb31ee11/be3d4069f9d04b8aabcaf529154ec6a1 [2024-10-31 22:03:38,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:38,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:38,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:38,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:38,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:38,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:38,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789163d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38, skipping insertion in model container [2024-10-31 22:03:38,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:38,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:38,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:38,825 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:38,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:38,991 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:38,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38 WrapperNode [2024-10-31 22:03:38,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:38,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:38,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:38,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:39,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,056 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 125 [2024-10-31 22:03:39,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:39,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:39,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:39,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:39,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:39,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:39,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:39,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:39,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (1/1) ... [2024-10-31 22:03:39,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:39,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:39,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:39,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b0e730-fefe-493a-b09b-828ecd6b2d85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-31 22:03:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-31 22:03:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:03:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:03:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:03:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:03:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:03:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:39,200 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 22:03:39,403 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:39,406 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:39,982 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:39,982 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:40,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:40,116 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:40,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:40 BoogieIcfgContainer [2024-10-31 22:03:40,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:40,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:40,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:40,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:40,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:38" (1/3) ... [2024-10-31 22:03:40,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2844420d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:40, skipping insertion in model container [2024-10-31 22:03:40,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:38" (2/3) ... [2024-10-31 22:03:40,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2844420d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:40, skipping insertion in model container [2024-10-31 22:03:40,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:40" (3/3) ... [2024-10-31 22:03:40,130 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-10-31 22:03:40,153 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:40,154 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-31 22:03:40,154 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:40,252 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:03:40,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 215 transitions, 444 flow [2024-10-31 22:03:40,438 INFO L124 PetriNetUnfolderBase]: 8/213 cut-off events. [2024-10-31 22:03:40,438 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:03:40,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 213 events. 8/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2024-10-31 22:03:40,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 215 transitions, 444 flow [2024-10-31 22:03:40,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 208 transitions, 425 flow [2024-10-31 22:03:40,466 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:40,476 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;@78a4ed5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:40,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-31 22:03:40,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:40,501 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2024-10-31 22:03:40,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:40,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:40,503 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] [2024-10-31 22:03:40,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:40,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -477178526, now seen corresponding path program 1 times [2024-10-31 22:03:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:40,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478500035] [2024-10-31 22:03:40,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:40,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:40,931 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 22:03:40,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:40,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478500035] [2024-10-31 22:03:40,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478500035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:40,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:40,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:40,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905692122] [2024-10-31 22:03:40,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:40,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:40,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:41,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 215 [2024-10-31 22:03:41,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 208 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 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 22:03:41,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:41,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 215 [2024-10-31 22:03:41,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:44,353 INFO L124 PetriNetUnfolderBase]: 4355/15186 cut-off events. [2024-10-31 22:03:44,353 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-31 22:03:44,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22183 conditions, 15186 events. 4355/15186 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 167170 event pairs, 1643 based on Foata normal form. 962/14829 useless extension candidates. Maximal degree in co-relation 22057. Up to 4457 conditions per place. [2024-10-31 22:03:44,536 INFO L140 encePairwiseOnDemand]: 192/215 looper letters, 66 selfloop transitions, 10 changer transitions 0/224 dead transitions. [2024-10-31 22:03:44,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 224 transitions, 615 flow [2024-10-31 22:03:44,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:44,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2024-10-31 22:03:44,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8852713178294573 [2024-10-31 22:03:44,564 INFO L175 Difference]: Start difference. First operand has 207 places, 208 transitions, 425 flow. Second operand 3 states and 571 transitions. [2024-10-31 22:03:44,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 224 transitions, 615 flow [2024-10-31 22:03:44,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 224 transitions, 607 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:03:44,583 INFO L231 Difference]: Finished difference. Result has 198 places, 198 transitions, 462 flow [2024-10-31 22:03:44,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=198, PETRI_TRANSITIONS=198} [2024-10-31 22:03:44,591 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -9 predicate places. [2024-10-31 22:03:44,593 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 198 transitions, 462 flow [2024-10-31 22:03:44,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 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 22:03:44,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:44,596 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 22:03:44,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:44,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:44,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1757956060, now seen corresponding path program 1 times [2024-10-31 22:03:44,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:44,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841062669] [2024-10-31 22:03:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:44,721 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 22:03:44,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841062669] [2024-10-31 22:03:44,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841062669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:44,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:44,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:44,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31943770] [2024-10-31 22:03:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:44,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:44,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:44,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:44,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:44,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-31 22:03:44,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 198 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 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 22:03:44,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:44,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-31 22:03:44,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:47,820 INFO L124 PetriNetUnfolderBase]: 4773/14933 cut-off events. [2024-10-31 22:03:47,820 INFO L125 PetriNetUnfolderBase]: For 2287/2315 co-relation queries the response was YES. [2024-10-31 22:03:47,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24615 conditions, 14933 events. 4773/14933 cut-off events. For 2287/2315 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 162285 event pairs, 3453 based on Foata normal form. 28/13560 useless extension candidates. Maximal degree in co-relation 24457. Up to 6392 conditions per place. [2024-10-31 22:03:47,966 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 61 selfloop transitions, 8 changer transitions 0/224 dead transitions. [2024-10-31 22:03:47,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 224 transitions, 670 flow [2024-10-31 22:03:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2024-10-31 22:03:47,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8604651162790697 [2024-10-31 22:03:47,971 INFO L175 Difference]: Start difference. First operand has 198 places, 198 transitions, 462 flow. Second operand 3 states and 555 transitions. [2024-10-31 22:03:47,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 224 transitions, 670 flow [2024-10-31 22:03:47,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 224 transitions, 644 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:48,001 INFO L231 Difference]: Finished difference. Result has 200 places, 205 transitions, 514 flow [2024-10-31 22:03:48,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=200, PETRI_TRANSITIONS=205} [2024-10-31 22:03:48,091 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -7 predicate places. [2024-10-31 22:03:48,091 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 205 transitions, 514 flow [2024-10-31 22:03:48,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 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 22:03:48,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:48,092 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] [2024-10-31 22:03:48,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:48,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:48,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:48,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1039786127, now seen corresponding path program 1 times [2024-10-31 22:03:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:48,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505114569] [2024-10-31 22:03:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,208 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 22:03:48,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:48,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505114569] [2024-10-31 22:03:48,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505114569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:48,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:48,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:48,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643566618] [2024-10-31 22:03:48,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:48,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:48,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-31 22:03:48,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 205 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 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 22:03:48,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:48,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-31 22:03:48,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:51,988 INFO L124 PetriNetUnfolderBase]: 6874/23203 cut-off events. [2024-10-31 22:03:51,988 INFO L125 PetriNetUnfolderBase]: For 723/765 co-relation queries the response was YES. [2024-10-31 22:03:52,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35958 conditions, 23203 events. 6874/23203 cut-off events. For 723/765 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 278919 event pairs, 2705 based on Foata normal form. 14/21415 useless extension candidates. Maximal degree in co-relation 35833. Up to 5723 conditions per place. [2024-10-31 22:03:52,169 INFO L140 encePairwiseOnDemand]: 206/215 looper letters, 59 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-10-31 22:03:52,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 232 transitions, 699 flow [2024-10-31 22:03:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:52,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:52,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-10-31 22:03:52,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8682170542635659 [2024-10-31 22:03:52,172 INFO L175 Difference]: Start difference. First operand has 200 places, 205 transitions, 514 flow. Second operand 3 states and 560 transitions. [2024-10-31 22:03:52,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 232 transitions, 699 flow [2024-10-31 22:03:52,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 232 transitions, 683 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:52,182 INFO L231 Difference]: Finished difference. Result has 200 places, 207 transitions, 536 flow [2024-10-31 22:03:52,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=200, PETRI_TRANSITIONS=207} [2024-10-31 22:03:52,184 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -7 predicate places. [2024-10-31 22:03:52,184 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 207 transitions, 536 flow [2024-10-31 22:03:52,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 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 22:03:52,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:52,185 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] [2024-10-31 22:03:52,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:52,186 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:52,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1523394632, now seen corresponding path program 1 times [2024-10-31 22:03:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:52,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895878654] [2024-10-31 22:03:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:52,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:52,260 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 22:03:52,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:52,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895878654] [2024-10-31 22:03:52,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895878654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703911631] [2024-10-31 22:03:52,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:52,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:52,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:52,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2024-10-31 22:03:52,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 207 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 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 22:03:52,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:52,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2024-10-31 22:03:52,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:56,589 INFO L124 PetriNetUnfolderBase]: 7740/24641 cut-off events. [2024-10-31 22:03:56,589 INFO L125 PetriNetUnfolderBase]: For 3856/3962 co-relation queries the response was YES. [2024-10-31 22:03:56,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41371 conditions, 24641 events. 7740/24641 cut-off events. For 3856/3962 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 297555 event pairs, 5376 based on Foata normal form. 14/22559 useless extension candidates. Maximal degree in co-relation 41247. Up to 10216 conditions per place. [2024-10-31 22:03:56,721 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 57 selfloop transitions, 4 changer transitions 0/229 dead transitions. [2024-10-31 22:03:56,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 229 transitions, 707 flow [2024-10-31 22:03:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:56,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-10-31 22:03:56,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635658914728682 [2024-10-31 22:03:56,724 INFO L175 Difference]: Start difference. First operand has 200 places, 207 transitions, 536 flow. Second operand 3 states and 557 transitions. [2024-10-31 22:03:56,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 229 transitions, 707 flow [2024-10-31 22:03:56,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 229 transitions, 693 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:56,734 INFO L231 Difference]: Finished difference. Result has 202 places, 210 transitions, 556 flow [2024-10-31 22:03:56,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=202, PETRI_TRANSITIONS=210} [2024-10-31 22:03:56,735 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -5 predicate places. [2024-10-31 22:03:56,735 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 210 transitions, 556 flow [2024-10-31 22:03:56,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 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 22:03:56,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:56,736 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] [2024-10-31 22:03:56,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:56,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:56,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:56,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1476059165, now seen corresponding path program 1 times [2024-10-31 22:03:56,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:56,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735491433] [2024-10-31 22:03:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:56,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:57,036 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 22:03:57,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:57,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735491433] [2024-10-31 22:03:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735491433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:57,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:57,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:57,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169560615] [2024-10-31 22:03:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:57,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:57,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:57,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:57,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2024-10-31 22:03:57,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 210 transitions, 556 flow. Second operand has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 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 22:03:57,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:57,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2024-10-31 22:03:57,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:58,626 INFO L124 PetriNetUnfolderBase]: 1980/10595 cut-off events. [2024-10-31 22:03:58,626 INFO L125 PetriNetUnfolderBase]: For 425/498 co-relation queries the response was YES. [2024-10-31 22:03:58,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15886 conditions, 10595 events. 1980/10595 cut-off events. For 425/498 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 124128 event pairs, 607 based on Foata normal form. 109/9923 useless extension candidates. Maximal degree in co-relation 15759. Up to 1748 conditions per place. [2024-10-31 22:03:58,702 INFO L140 encePairwiseOnDemand]: 207/215 looper letters, 44 selfloop transitions, 8 changer transitions 0/233 dead transitions. [2024-10-31 22:03:58,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 233 transitions, 708 flow [2024-10-31 22:03:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:03:58,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:03:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 919 transitions. [2024-10-31 22:03:58,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548837209302326 [2024-10-31 22:03:58,709 INFO L175 Difference]: Start difference. First operand has 202 places, 210 transitions, 556 flow. Second operand 5 states and 919 transitions. [2024-10-31 22:03:58,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 233 transitions, 708 flow [2024-10-31 22:03:58,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 233 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:58,724 INFO L231 Difference]: Finished difference. Result has 205 places, 214 transitions, 586 flow [2024-10-31 22:03:58,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=586, PETRI_PLACES=205, PETRI_TRANSITIONS=214} [2024-10-31 22:03:58,729 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -2 predicate places. [2024-10-31 22:03:58,733 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 214 transitions, 586 flow [2024-10-31 22:03:58,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 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 22:03:58,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:58,734 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] [2024-10-31 22:03:58,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:58,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:03:58,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:58,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1686946676, now seen corresponding path program 1 times [2024-10-31 22:03:58,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:58,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729033508] [2024-10-31 22:03:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:58,817 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 22:03:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729033508] [2024-10-31 22:03:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729033508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:58,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007955952] [2024-10-31 22:03:58,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:58,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:58,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:58,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:58,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:58,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-31 22:03:58,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 214 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 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 22:03:58,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:58,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-31 22:03:58,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:01,407 INFO L124 PetriNetUnfolderBase]: 3946/14426 cut-off events. [2024-10-31 22:04:01,407 INFO L125 PetriNetUnfolderBase]: For 3501/3511 co-relation queries the response was YES. [2024-10-31 22:04:01,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26551 conditions, 14426 events. 3946/14426 cut-off events. For 3501/3511 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 165817 event pairs, 2498 based on Foata normal form. 2/13437 useless extension candidates. Maximal degree in co-relation 26386. Up to 6071 conditions per place. [2024-10-31 22:04:01,468 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 70 selfloop transitions, 8 changer transitions 2/242 dead transitions. [2024-10-31 22:04:01,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 242 transitions, 840 flow [2024-10-31 22:04:01,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2024-10-31 22:04:01,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8604651162790697 [2024-10-31 22:04:01,471 INFO L175 Difference]: Start difference. First operand has 205 places, 214 transitions, 586 flow. Second operand 3 states and 555 transitions. [2024-10-31 22:04:01,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 242 transitions, 840 flow [2024-10-31 22:04:01,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 242 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:01,477 INFO L231 Difference]: Finished difference. Result has 207 places, 221 transitions, 665 flow [2024-10-31 22:04:01,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=207, PETRI_TRANSITIONS=221} [2024-10-31 22:04:01,479 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2024-10-31 22:04:01,479 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 221 transitions, 665 flow [2024-10-31 22:04:01,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 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 22:04:01,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:01,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:01,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:01,480 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:04:01,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1464912069, now seen corresponding path program 1 times [2024-10-31 22:04:01,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:01,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104900564] [2024-10-31 22:04:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:01,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:01,526 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 22:04:01,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104900564] [2024-10-31 22:04:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104900564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:01,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444171912] [2024-10-31 22:04:01,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:01,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:01,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:01,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2024-10-31 22:04:01,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 221 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 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 22:04:01,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:01,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2024-10-31 22:04:01,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:03,997 INFO L124 PetriNetUnfolderBase]: 3679/15023 cut-off events. [2024-10-31 22:04:03,997 INFO L125 PetriNetUnfolderBase]: For 3682/3804 co-relation queries the response was YES. [2024-10-31 22:04:04,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27279 conditions, 15023 events. 3679/15023 cut-off events. For 3682/3804 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 176864 event pairs, 2162 based on Foata normal form. 4/13778 useless extension candidates. Maximal degree in co-relation 27144. Up to 5227 conditions per place. [2024-10-31 22:04:04,076 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 61 selfloop transitions, 4 changer transitions 3/245 dead transitions. [2024-10-31 22:04:04,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 245 transitions, 873 flow [2024-10-31 22:04:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-10-31 22:04:04,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635658914728682 [2024-10-31 22:04:04,080 INFO L175 Difference]: Start difference. First operand has 207 places, 221 transitions, 665 flow. Second operand 3 states and 557 transitions. [2024-10-31 22:04:04,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 245 transitions, 873 flow [2024-10-31 22:04:04,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 847 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:04,100 INFO L231 Difference]: Finished difference. Result has 209 places, 224 transitions, 673 flow [2024-10-31 22:04:04,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=673, PETRI_PLACES=209, PETRI_TRANSITIONS=224} [2024-10-31 22:04:04,101 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-10-31 22:04:04,102 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 224 transitions, 673 flow [2024-10-31 22:04:04,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 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 22:04:04,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:04,103 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] [2024-10-31 22:04:04,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:04,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:04:04,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:04,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1475972710, now seen corresponding path program 1 times [2024-10-31 22:04:04,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913164441] [2024-10-31 22:04:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:04,546 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 22:04:04,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:04,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913164441] [2024-10-31 22:04:04,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913164441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:04,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:04,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008979297] [2024-10-31 22:04:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:04,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:04,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:04,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:04,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:04,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2024-10-31 22:04:04,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 224 transitions, 673 flow. Second operand has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 0 states have call successors, (0), 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 22:04:04,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:04,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2024-10-31 22:04:04,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:05,819 INFO L124 PetriNetUnfolderBase]: 1335/7857 cut-off events. [2024-10-31 22:04:05,819 INFO L125 PetriNetUnfolderBase]: For 1577/1625 co-relation queries the response was YES. [2024-10-31 22:04:05,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13361 conditions, 7857 events. 1335/7857 cut-off events. For 1577/1625 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 87412 event pairs, 374 based on Foata normal form. 24/7458 useless extension candidates. Maximal degree in co-relation 13225. Up to 1346 conditions per place. [2024-10-31 22:04:05,849 INFO L140 encePairwiseOnDemand]: 207/215 looper letters, 40 selfloop transitions, 10 changer transitions 13/250 dead transitions. [2024-10-31 22:04:05,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 250 transitions, 867 flow [2024-10-31 22:04:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:04:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 919 transitions. [2024-10-31 22:04:05,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548837209302326 [2024-10-31 22:04:05,853 INFO L175 Difference]: Start difference. First operand has 209 places, 224 transitions, 673 flow. Second operand 5 states and 919 transitions. [2024-10-31 22:04:05,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 250 transitions, 867 flow [2024-10-31 22:04:05,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 250 transitions, 857 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:05,870 INFO L231 Difference]: Finished difference. Result has 212 places, 223 transitions, 699 flow [2024-10-31 22:04:05,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=699, PETRI_PLACES=212, PETRI_TRANSITIONS=223} [2024-10-31 22:04:05,872 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 5 predicate places. [2024-10-31 22:04:05,872 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 223 transitions, 699 flow [2024-10-31 22:04:05,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 0 states have call successors, (0), 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 22:04:05,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:05,873 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, 1, 1, 1] [2024-10-31 22:04:05,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:05,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:04:05,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:05,874 INFO L85 PathProgramCache]: Analyzing trace with hash -67412236, now seen corresponding path program 1 times [2024-10-31 22:04:05,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:05,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665203180] [2024-10-31 22:04:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:06,001 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 22:04:06,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:06,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665203180] [2024-10-31 22:04:06,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665203180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:06,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:06,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:06,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783836846] [2024-10-31 22:04:06,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:06,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:06,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:06,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:06,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:06,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 215 [2024-10-31 22:04:06,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 223 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 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 22:04:06,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:06,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 215 [2024-10-31 22:04:06,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:07,055 INFO L124 PetriNetUnfolderBase]: 818/7273 cut-off events. [2024-10-31 22:04:07,055 INFO L125 PetriNetUnfolderBase]: For 2285/2317 co-relation queries the response was YES. [2024-10-31 22:04:07,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12563 conditions, 7273 events. 818/7273 cut-off events. For 2285/2317 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 80053 event pairs, 233 based on Foata normal form. 167/7150 useless extension candidates. Maximal degree in co-relation 7911. Up to 1260 conditions per place. [2024-10-31 22:04:07,081 INFO L140 encePairwiseOnDemand]: 195/215 looper letters, 24 selfloop transitions, 20 changer transitions 15/247 dead transitions. [2024-10-31 22:04:07,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 247 transitions, 931 flow [2024-10-31 22:04:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:07,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2024-10-31 22:04:07,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8930232558139535 [2024-10-31 22:04:07,088 INFO L175 Difference]: Start difference. First operand has 212 places, 223 transitions, 699 flow. Second operand 3 states and 576 transitions. [2024-10-31 22:04:07,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 247 transitions, 931 flow [2024-10-31 22:04:07,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 247 transitions, 928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:07,099 INFO L231 Difference]: Finished difference. Result has 213 places, 227 transitions, 789 flow [2024-10-31 22:04:07,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=213, PETRI_TRANSITIONS=227} [2024-10-31 22:04:07,100 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 6 predicate places. [2024-10-31 22:04:07,101 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 227 transitions, 789 flow [2024-10-31 22:04:07,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 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 22:04:07,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:07,102 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, 1, 1, 1] [2024-10-31 22:04:07,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:07,102 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 22:04:07,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1420638874, now seen corresponding path program 2 times [2024-10-31 22:04:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371064328] [2024-10-31 22:04:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat