./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12.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_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/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_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/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_4a8f7c00-4648-4fd4-943c-290fbac9a770/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 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:23,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:23,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:10:23,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:23,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:23,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:23,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:23,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:23,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:23,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:23,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:23,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:23,183 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:23,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:23,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:23,185 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:23,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:23,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:23,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:23,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:23,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:23,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:23,188 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:10:23,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:23,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:23,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:23,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:23,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:23,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:23,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:23,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:23,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:23,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:23,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:23,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:23,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:23,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:23,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:23,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:23,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:23,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:23,193 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_4a8f7c00-4648-4fd4-943c-290fbac9a770/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 [2024-10-31 22:10:23,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:23,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:23,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:23,516 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:23,517 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:23,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-lit/sssc12.i Unable to find full path for "g++" [2024-10-31 22:10:25,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:25,931 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:25,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/sv-benchmarks/c/pthread-lit/sssc12.i [2024-10-31 22:10:25,959 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/data/bef58748f/a717b33b4aaf4e4aaa1a13a032a35b84/FLAGea99ba0f6 [2024-10-31 22:10:25,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/data/bef58748f/a717b33b4aaf4e4aaa1a13a032a35b84 [2024-10-31 22:10:25,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:25,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:25,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:25,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:26,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:26,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:25" (1/1) ... [2024-10-31 22:10:26,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20093b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:26, skipping insertion in model container [2024-10-31 22:10:26,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:25" (1/1) ... [2024-10-31 22:10:26,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:26,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:26,908 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:26,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:27,072 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:27,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27 WrapperNode [2024-10-31 22:10:27,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:27,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:27,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:27,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:27,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,149 INFO L138 Inliner]: procedures = 272, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 124 [2024-10-31 22:10:27,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:27,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:27,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:27,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:27,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:27,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:27,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:27,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:27,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (1/1) ... [2024-10-31 22:10:27,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:27,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:27,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:27,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8f7c00-4648-4fd4-943c-290fbac9a770/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-10-31 22:10:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-10-31 22:10:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:10:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:10:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:10:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:10:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:10:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:27,349 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 22:10:27,522 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:27,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:27,927 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:10:27,928 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:27,979 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:27,979 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:10:27,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:27 BoogieIcfgContainer [2024-10-31 22:10:27,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:27,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:27,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:27,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:27,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:25" (1/3) ... [2024-10-31 22:10:27,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd29835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:27, skipping insertion in model container [2024-10-31 22:10:27,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:27" (2/3) ... [2024-10-31 22:10:27,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd29835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:27, skipping insertion in model container [2024-10-31 22:10:27,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:27" (3/3) ... [2024-10-31 22:10:27,994 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12.i [2024-10-31 22:10:28,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:28,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-31 22:10:28,023 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:10:28,168 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:10:28,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 300 flow [2024-10-31 22:10:28,347 INFO L124 PetriNetUnfolderBase]: 10/158 cut-off events. [2024-10-31 22:10:28,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:28,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 10/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2024-10-31 22:10:28,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 300 flow [2024-10-31 22:10:28,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 148 transitions, 300 flow [2024-10-31 22:10:28,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:28,403 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;@4497fea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:28,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-31 22:10:28,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:28,419 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-31 22:10:28,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:28,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:28,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:28,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:28,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash -539149206, now seen corresponding path program 1 times [2024-10-31 22:10:28,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:28,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199985151] [2024-10-31 22:10:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:28,855 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 22:10:28,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:28,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199985151] [2024-10-31 22:10:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199985151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:28,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:28,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:28,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934429450] [2024-10-31 22:10:28,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:28,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:28,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:28,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:29,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 148 [2024-10-31 22:10:29,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 148 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 22:10:29,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 148 [2024-10-31 22:10:29,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:29,085 INFO L124 PetriNetUnfolderBase]: 4/139 cut-off events. [2024-10-31 22:10:29,085 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:29,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 139 events. 4/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 12/132 useless extension candidates. Maximal degree in co-relation 77. Up to 11 conditions per place. [2024-10-31 22:10:29,087 INFO L140 encePairwiseOnDemand]: 139/148 looper letters, 10 selfloop transitions, 2 changer transitions 1/135 dead transitions. [2024-10-31 22:10:29,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 298 flow [2024-10-31 22:10:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:29,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-10-31 22:10:29,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9009009009009009 [2024-10-31 22:10:29,107 INFO L175 Difference]: Start difference. First operand has 142 places, 148 transitions, 300 flow. Second operand 3 states and 400 transitions. [2024-10-31 22:10:29,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 298 flow [2024-10-31 22:10:29,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:29,117 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 276 flow [2024-10-31 22:10:29,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2024-10-31 22:10:29,125 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -6 predicate places. [2024-10-31 22:10:29,128 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 276 flow [2024-10-31 22:10:29,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 22:10:29,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:29,131 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] [2024-10-31 22:10:29,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:29,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:29,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 937370990, now seen corresponding path program 1 times [2024-10-31 22:10:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142916959] [2024-10-31 22:10:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:29,253 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 22:10:29,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:29,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142916959] [2024-10-31 22:10:29,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142916959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:29,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:29,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:29,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903507585] [2024-10-31 22:10:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:29,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:29,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:29,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:29,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:29,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 148 [2024-10-31 22:10:29,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 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 22:10:29,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 148 [2024-10-31 22:10:29,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:29,409 INFO L124 PetriNetUnfolderBase]: 4/137 cut-off events. [2024-10-31 22:10:29,409 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:29,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 137 events. 4/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 127. Up to 12 conditions per place. [2024-10-31 22:10:29,411 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 11 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-10-31 22:10:29,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 300 flow [2024-10-31 22:10:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-10-31 22:10:29,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-10-31 22:10:29,415 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 276 flow. Second operand 3 states and 392 transitions. [2024-10-31 22:10:29,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 300 flow [2024-10-31 22:10:29,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:29,423 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 274 flow [2024-10-31 22:10:29,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2024-10-31 22:10:29,427 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -8 predicate places. [2024-10-31 22:10:29,427 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 274 flow [2024-10-31 22:10:29,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 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 22:10:29,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:29,428 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 22:10:29,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:29,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:29,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:29,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1079100034, now seen corresponding path program 1 times [2024-10-31 22:10:29,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:29,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359525408] [2024-10-31 22:10:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:29,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:29,515 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 22:10:29,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:29,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359525408] [2024-10-31 22:10:29,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359525408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:29,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:29,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:29,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855108824] [2024-10-31 22:10:29,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:29,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:29,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:29,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:29,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:29,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2024-10-31 22:10:29,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 22:10:29,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2024-10-31 22:10:29,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:29,593 INFO L124 PetriNetUnfolderBase]: 4/132 cut-off events. [2024-10-31 22:10:29,593 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:10:29,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 132 events. 4/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2024-10-31 22:10:29,595 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 13 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2024-10-31 22:10:29,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 128 transitions, 292 flow [2024-10-31 22:10:29,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2024-10-31 22:10:29,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8671171171171171 [2024-10-31 22:10:29,598 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 274 flow. Second operand 3 states and 385 transitions. [2024-10-31 22:10:29,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 128 transitions, 292 flow [2024-10-31 22:10:29,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 128 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:29,603 INFO L231 Difference]: Finished difference. Result has 129 places, 128 transitions, 262 flow [2024-10-31 22:10:29,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=129, PETRI_TRANSITIONS=128} [2024-10-31 22:10:29,604 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -13 predicate places. [2024-10-31 22:10:29,604 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 262 flow [2024-10-31 22:10:29,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 22:10:29,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:29,605 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 22:10:29,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:10:29,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:29,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1376072315, now seen corresponding path program 1 times [2024-10-31 22:10:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922511858] [2024-10-31 22:10:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:29,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:29,675 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 22:10:29,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:29,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922511858] [2024-10-31 22:10:29,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922511858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:29,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:29,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:29,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794944181] [2024-10-31 22:10:29,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:29,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:29,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:29,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2024-10-31 22:10:29,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 22:10:29,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2024-10-31 22:10:29,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:29,735 INFO L124 PetriNetUnfolderBase]: 4/131 cut-off events. [2024-10-31 22:10:29,736 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:29,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 131 events. 4/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-10-31 22:10:29,737 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 7 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2024-10-31 22:10:29,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 278 flow [2024-10-31 22:10:29,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-10-31 22:10:29,739 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9009009009009009 [2024-10-31 22:10:29,740 INFO L175 Difference]: Start difference. First operand has 129 places, 128 transitions, 262 flow. Second operand 3 states and 400 transitions. [2024-10-31 22:10:29,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 278 flow [2024-10-31 22:10:29,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:29,743 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 263 flow [2024-10-31 22:10:29,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2024-10-31 22:10:29,745 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -13 predicate places. [2024-10-31 22:10:29,745 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 263 flow [2024-10-31 22:10:29,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 22:10:29,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:29,746 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:29,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:10:29,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:29,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash 257726207, now seen corresponding path program 1 times [2024-10-31 22:10:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:29,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962370805] [2024-10-31 22:10:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:29,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962370805] [2024-10-31 22:10:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962370805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:29,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676743750] [2024-10-31 22:10:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:29,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:29,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:29,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:29,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 148 [2024-10-31 22:10:29,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 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 22:10:29,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 148 [2024-10-31 22:10:29,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:30,077 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2024-10-31 22:10:30,078 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:30,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 134 events. 3/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 122. Up to 15 conditions per place. [2024-10-31 22:10:30,079 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 14 selfloop transitions, 0 changer transitions 4/130 dead transitions. [2024-10-31 22:10:30,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 130 transitions, 305 flow [2024-10-31 22:10:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:30,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:10:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2024-10-31 22:10:30,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635135135135135 [2024-10-31 22:10:30,083 INFO L175 Difference]: Start difference. First operand has 129 places, 127 transitions, 263 flow. Second operand 5 states and 639 transitions. [2024-10-31 22:10:30,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 130 transitions, 305 flow [2024-10-31 22:10:30,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 130 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:30,090 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 263 flow [2024-10-31 22:10:30,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-10-31 22:10:30,092 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -8 predicate places. [2024-10-31 22:10:30,092 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 263 flow [2024-10-31 22:10:30,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 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 22:10:30,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:30,096 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:30,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:10:30,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:10:30,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -101692708, now seen corresponding path program 1 times [2024-10-31 22:10:30,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:30,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262580456] [2024-10-31 22:10:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:30,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:30,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:30,224 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:10:30,225 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-31 22:10:30,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-31 22:10:30,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-31 22:10:30,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-31 22:10:30,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-31 22:10:30,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-31 22:10:30,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-31 22:10:30,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-31 22:10:30,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-31 22:10:30,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-31 22:10:30,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-31 22:10:30,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-31 22:10:30,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-31 22:10:30,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-31 22:10:30,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-31 22:10:30,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-31 22:10:30,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-31 22:10:30,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-31 22:10:30,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-31 22:10:30,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-31 22:10:30,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-31 22:10:30,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-31 22:10:30,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-31 22:10:30,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:10:30,236 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:10:30,243 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:10:30,243 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:10:30,334 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:10:30,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 219 transitions, 448 flow [2024-10-31 22:10:30,390 INFO L124 PetriNetUnfolderBase]: 17/241 cut-off events. [2024-10-31 22:10:30,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:10:30,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 241 events. 17/241 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 519 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 159. Up to 6 conditions per place. [2024-10-31 22:10:30,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 219 transitions, 448 flow [2024-10-31 22:10:30,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 219 transitions, 448 flow [2024-10-31 22:10:30,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:30,402 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;@4497fea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:30,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-31 22:10:30,405 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:30,406 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-31 22:10:30,406 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:30,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:30,406 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:30,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:30,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:30,407 INFO L85 PathProgramCache]: Analyzing trace with hash -169305051, now seen corresponding path program 1 times [2024-10-31 22:10:30,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:30,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679944460] [2024-10-31 22:10:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:30,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:30,441 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 22:10:30,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:30,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679944460] [2024-10-31 22:10:30,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679944460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:30,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:30,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:30,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222412990] [2024-10-31 22:10:30,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:30,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:30,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:30,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:30,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:30,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 219 [2024-10-31 22:10:30,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 219 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 22:10:30,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:30,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 219 [2024-10-31 22:10:30,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:30,650 INFO L124 PetriNetUnfolderBase]: 70/673 cut-off events. [2024-10-31 22:10:30,650 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-31 22:10:30,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 673 events. 70/673 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3835 event pairs, 42 based on Foata normal form. 99/657 useless extension candidates. Maximal degree in co-relation 616. Up to 102 conditions per place. [2024-10-31 22:10:30,660 INFO L140 encePairwiseOnDemand]: 207/219 looper letters, 17 selfloop transitions, 2 changer transitions 1/201 dead transitions. [2024-10-31 22:10:30,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 201 transitions, 450 flow [2024-10-31 22:10:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2024-10-31 22:10:30,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.898021308980213 [2024-10-31 22:10:30,663 INFO L175 Difference]: Start difference. First operand has 209 places, 219 transitions, 448 flow. Second operand 3 states and 590 transitions. [2024-10-31 22:10:30,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 201 transitions, 450 flow [2024-10-31 22:10:30,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:30,667 INFO L231 Difference]: Finished difference. Result has 201 places, 200 transitions, 414 flow [2024-10-31 22:10:30,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=201, PETRI_TRANSITIONS=200} [2024-10-31 22:10:30,668 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2024-10-31 22:10:30,668 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 200 transitions, 414 flow [2024-10-31 22:10:30,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 22:10:30,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:30,670 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] [2024-10-31 22:10:30,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:10:30,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:30,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:30,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2085246962, now seen corresponding path program 1 times [2024-10-31 22:10:30,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:30,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421117118] [2024-10-31 22:10:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:30,709 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 22:10:30,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:30,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421117118] [2024-10-31 22:10:30,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421117118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:30,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:30,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:30,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828683950] [2024-10-31 22:10:30,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:30,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:30,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:30,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:30,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:30,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 219 [2024-10-31 22:10:30,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 200 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 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 22:10:30,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:30,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 219 [2024-10-31 22:10:30,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:30,888 INFO L124 PetriNetUnfolderBase]: 42/529 cut-off events. [2024-10-31 22:10:30,888 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-31 22:10:30,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 529 events. 42/529 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2585 event pairs, 20 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 579. Up to 57 conditions per place. [2024-10-31 22:10:30,893 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 16 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2024-10-31 22:10:30,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 199 transitions, 448 flow [2024-10-31 22:10:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2024-10-31 22:10:30,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8873668188736682 [2024-10-31 22:10:30,896 INFO L175 Difference]: Start difference. First operand has 201 places, 200 transitions, 414 flow. Second operand 3 states and 583 transitions. [2024-10-31 22:10:30,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 199 transitions, 448 flow [2024-10-31 22:10:30,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 199 transitions, 444 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:30,902 INFO L231 Difference]: Finished difference. Result has 199 places, 199 transitions, 412 flow [2024-10-31 22:10:30,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=199, PETRI_TRANSITIONS=199} [2024-10-31 22:10:30,905 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -10 predicate places. [2024-10-31 22:10:30,906 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 199 transitions, 412 flow [2024-10-31 22:10:30,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 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 22:10:30,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:30,907 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 22:10:30,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:10:30,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:30,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -498281502, now seen corresponding path program 1 times [2024-10-31 22:10:30,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:30,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266007671] [2024-10-31 22:10:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:30,961 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 22:10:30,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:30,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266007671] [2024-10-31 22:10:30,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266007671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:30,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:30,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:30,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596177864] [2024-10-31 22:10:30,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:30,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:30,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:30,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:30,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:31,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 219 [2024-10-31 22:10:31,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 199 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 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 22:10:31,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:31,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 219 [2024-10-31 22:10:31,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:31,160 INFO L124 PetriNetUnfolderBase]: 82/811 cut-off events. [2024-10-31 22:10:31,161 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-31 22:10:31,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 811 events. 82/811 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4772 event pairs, 42 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 911. Up to 109 conditions per place. [2024-10-31 22:10:31,168 INFO L140 encePairwiseOnDemand]: 211/219 looper letters, 20 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2024-10-31 22:10:31,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 192 transitions, 440 flow [2024-10-31 22:10:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2024-10-31 22:10:31,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645357686453576 [2024-10-31 22:10:31,171 INFO L175 Difference]: Start difference. First operand has 199 places, 199 transitions, 412 flow. Second operand 3 states and 568 transitions. [2024-10-31 22:10:31,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 192 transitions, 440 flow [2024-10-31 22:10:31,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 192 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:31,176 INFO L231 Difference]: Finished difference. Result has 192 places, 192 transitions, 396 flow [2024-10-31 22:10:31,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=192, PETRI_TRANSITIONS=192} [2024-10-31 22:10:31,177 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -17 predicate places. [2024-10-31 22:10:31,177 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 192 transitions, 396 flow [2024-10-31 22:10:31,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 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 22:10:31,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:31,178 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 22:10:31,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:10:31,179 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:31,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:31,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1518551333, now seen corresponding path program 1 times [2024-10-31 22:10:31,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:31,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635192000] [2024-10-31 22:10:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:31,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:31,218 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 22:10:31,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:31,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635192000] [2024-10-31 22:10:31,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635192000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:31,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:31,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:31,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483589295] [2024-10-31 22:10:31,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:31,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:31,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:31,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 219 [2024-10-31 22:10:31,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 192 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 22:10:31,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:31,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 219 [2024-10-31 22:10:31,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:31,342 INFO L124 PetriNetUnfolderBase]: 31/445 cut-off events. [2024-10-31 22:10:31,342 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:10:31,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 445 events. 31/445 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1864 event pairs, 12 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 462. Up to 36 conditions per place. [2024-10-31 22:10:31,347 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 11 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2024-10-31 22:10:31,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 191 transitions, 420 flow [2024-10-31 22:10:31,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2024-10-31 22:10:31,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9025875190258752 [2024-10-31 22:10:31,349 INFO L175 Difference]: Start difference. First operand has 192 places, 192 transitions, 396 flow. Second operand 3 states and 593 transitions. [2024-10-31 22:10:31,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 191 transitions, 420 flow [2024-10-31 22:10:31,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 191 transitions, 419 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:31,354 INFO L231 Difference]: Finished difference. Result has 192 places, 191 transitions, 397 flow [2024-10-31 22:10:31,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=192, PETRI_TRANSITIONS=191} [2024-10-31 22:10:31,355 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -17 predicate places. [2024-10-31 22:10:31,355 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 191 transitions, 397 flow [2024-10-31 22:10:31,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 22:10:31,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:31,356 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] [2024-10-31 22:10:31,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:10:31,357 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:31,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1948651562, now seen corresponding path program 1 times [2024-10-31 22:10:31,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:31,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626503934] [2024-10-31 22:10:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:31,405 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 22:10:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626503934] [2024-10-31 22:10:31,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626503934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:31,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:31,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38113899] [2024-10-31 22:10:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:31,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:31,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 219 [2024-10-31 22:10:31,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 191 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 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 22:10:31,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:31,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 219 [2024-10-31 22:10:31,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:31,869 INFO L124 PetriNetUnfolderBase]: 195/1598 cut-off events. [2024-10-31 22:10:31,870 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-10-31 22:10:31,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1598 events. 195/1598 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12576 event pairs, 57 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 1888. Up to 204 conditions per place. [2024-10-31 22:10:31,884 INFO L140 encePairwiseOnDemand]: 199/219 looper letters, 32 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-10-31 22:10:31,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 210 transitions, 532 flow [2024-10-31 22:10:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2024-10-31 22:10:31,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056316590563166 [2024-10-31 22:10:31,891 INFO L175 Difference]: Start difference. First operand has 192 places, 191 transitions, 397 flow. Second operand 3 states and 595 transitions. [2024-10-31 22:10:31,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 210 transitions, 532 flow [2024-10-31 22:10:31,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 210 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:31,898 INFO L231 Difference]: Finished difference. Result has 194 places, 205 transitions, 517 flow [2024-10-31 22:10:31,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=194, PETRI_TRANSITIONS=205} [2024-10-31 22:10:31,900 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -15 predicate places. [2024-10-31 22:10:31,901 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 205 transitions, 517 flow [2024-10-31 22:10:31,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 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 22:10:31,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:31,902 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:31,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:10:31,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:31,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash 110521077, now seen corresponding path program 1 times [2024-10-31 22:10:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886057337] [2024-10-31 22:10:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 22:10:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886057337] [2024-10-31 22:10:32,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886057337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:32,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:32,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064611377] [2024-10-31 22:10:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:32,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:32,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:32,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:32,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 219 [2024-10-31 22:10:32,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 205 transitions, 517 flow. Second operand has 5 states, 5 states have (on average 190.4) internal successors, (952), 5 states have internal predecessors, (952), 0 states have call successors, (0), 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 22:10:32,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:32,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 219 [2024-10-31 22:10:32,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:32,485 INFO L124 PetriNetUnfolderBase]: 130/1495 cut-off events. [2024-10-31 22:10:32,485 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-31 22:10:32,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 1495 events. 130/1495 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11577 event pairs, 41 based on Foata normal form. 1/1300 useless extension candidates. Maximal degree in co-relation 1727. Up to 120 conditions per place. [2024-10-31 22:10:32,497 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 17 selfloop transitions, 0 changer transitions 4/208 dead transitions. [2024-10-31 22:10:32,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 208 transitions, 565 flow [2024-10-31 22:10:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:10:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2024-10-31 22:10:32,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8785388127853881 [2024-10-31 22:10:32,500 INFO L175 Difference]: Start difference. First operand has 194 places, 205 transitions, 517 flow. Second operand 5 states and 962 transitions. [2024-10-31 22:10:32,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 208 transitions, 565 flow [2024-10-31 22:10:32,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 208 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:32,509 INFO L231 Difference]: Finished difference. Result has 199 places, 204 transitions, 493 flow [2024-10-31 22:10:32,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=493, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2024-10-31 22:10:32,511 INFO L277 CegarLoopForPetriNet]: 209 programPoint places, -10 predicate places. [2024-10-31 22:10:32,512 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 493 flow [2024-10-31 22:10:32,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 190.4) internal successors, (952), 5 states have internal predecessors, (952), 0 states have call successors, (0), 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 22:10:32,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:32,513 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:32,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:10:32,513 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-31 22:10:32,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:32,514 INFO L85 PathProgramCache]: Analyzing trace with hash 472091293, now seen corresponding path program 1 times [2024-10-31 22:10:32,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:32,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562305479] [2024-10-31 22:10:32,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:32,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:32,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:32,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:32,564 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:10:32,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-31 22:10:32,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-10-31 22:10:32,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-10-31 22:10:32,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-10-31 22:10:32,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-10-31 22:10:32,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-10-31 22:10:32,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-10-31 22:10:32,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-10-31 22:10:32,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-10-31 22:10:32,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-10-31 22:10:32,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-10-31 22:10:32,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-10-31 22:10:32,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-10-31 22:10:32,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-10-31 22:10:32,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-10-31 22:10:32,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-10-31 22:10:32,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-10-31 22:10:32,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-10-31 22:10:32,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-10-31 22:10:32,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-10-31 22:10:32,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-10-31 22:10:32,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-10-31 22:10:32,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-10-31 22:10:32,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-10-31 22:10:32,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-10-31 22:10:32,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-10-31 22:10:32,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:10:32,576 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:32,576 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:10:32,577 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:10:32,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:10:32,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 290 transitions, 598 flow [2024-10-31 22:10:32,733 INFO L124 PetriNetUnfolderBase]: 24/324 cut-off events. [2024-10-31 22:10:32,733 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:10:32,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 324 events. 24/324 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 958 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-10-31 22:10:32,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 290 transitions, 598 flow [2024-10-31 22:10:32,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 290 transitions, 598 flow [2024-10-31 22:10:32,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:32,744 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;@4497fea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:32,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-31 22:10:32,747 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:32,749 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-31 22:10:32,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:32,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:32,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:32,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:32,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash 614618759, now seen corresponding path program 1 times [2024-10-31 22:10:32,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:32,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101271218] [2024-10-31 22:10:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:32,783 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 22:10:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101271218] [2024-10-31 22:10:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101271218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:32,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865485698] [2024-10-31 22:10:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:32,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:32,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:32,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 290 [2024-10-31 22:10:32,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 290 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 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 22:10:32,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:32,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 290 [2024-10-31 22:10:32,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:34,050 INFO L124 PetriNetUnfolderBase]: 829/4693 cut-off events. [2024-10-31 22:10:34,051 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-10-31 22:10:34,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5951 conditions, 4693 events. 829/4693 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 48192 event pairs, 630 based on Foata normal form. 847/4741 useless extension candidates. Maximal degree in co-relation 4863. Up to 1033 conditions per place. [2024-10-31 22:10:34,123 INFO L140 encePairwiseOnDemand]: 275/290 looper letters, 24 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2024-10-31 22:10:34,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 267 transitions, 604 flow [2024-10-31 22:10:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2024-10-31 22:10:34,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2024-10-31 22:10:34,126 INFO L175 Difference]: Start difference. First operand has 276 places, 290 transitions, 598 flow. Second operand 3 states and 780 transitions. [2024-10-31 22:10:34,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 267 transitions, 604 flow [2024-10-31 22:10:34,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 267 transitions, 602 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:34,134 INFO L231 Difference]: Finished difference. Result has 266 places, 266 transitions, 552 flow [2024-10-31 22:10:34,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=266, PETRI_TRANSITIONS=266} [2024-10-31 22:10:34,136 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -10 predicate places. [2024-10-31 22:10:34,136 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 266 transitions, 552 flow [2024-10-31 22:10:34,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 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 22:10:34,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:34,137 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] [2024-10-31 22:10:34,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:10:34,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:34,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1305819086, now seen corresponding path program 1 times [2024-10-31 22:10:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:34,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868950395] [2024-10-31 22:10:34,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:34,167 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 22:10:34,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:34,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868950395] [2024-10-31 22:10:34,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868950395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:34,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:34,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:34,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874837340] [2024-10-31 22:10:34,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:34,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:34,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:34,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 290 [2024-10-31 22:10:34,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 266 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 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 22:10:34,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:34,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 290 [2024-10-31 22:10:34,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:34,857 INFO L124 PetriNetUnfolderBase]: 335/2601 cut-off events. [2024-10-31 22:10:34,858 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-10-31 22:10:34,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3084 conditions, 2601 events. 335/2601 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 23488 event pairs, 220 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3051. Up to 382 conditions per place. [2024-10-31 22:10:34,894 INFO L140 encePairwiseOnDemand]: 287/290 looper letters, 21 selfloop transitions, 2 changer transitions 0/265 dead transitions. [2024-10-31 22:10:34,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 265 transitions, 596 flow [2024-10-31 22:10:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:34,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2024-10-31 22:10:34,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8896551724137931 [2024-10-31 22:10:34,898 INFO L175 Difference]: Start difference. First operand has 266 places, 266 transitions, 552 flow. Second operand 3 states and 774 transitions. [2024-10-31 22:10:34,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 265 transitions, 596 flow [2024-10-31 22:10:34,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 265 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:34,903 INFO L231 Difference]: Finished difference. Result has 264 places, 265 transitions, 550 flow [2024-10-31 22:10:34,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=264, PETRI_TRANSITIONS=265} [2024-10-31 22:10:34,907 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -12 predicate places. [2024-10-31 22:10:34,908 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 265 transitions, 550 flow [2024-10-31 22:10:34,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 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 22:10:34,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:34,909 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 22:10:34,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:10:34,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:34,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:34,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1864809506, now seen corresponding path program 1 times [2024-10-31 22:10:34,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:34,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298664837] [2024-10-31 22:10:34,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:34,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:34,942 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 22:10:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:34,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298664837] [2024-10-31 22:10:34,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298664837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:34,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:34,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495116129] [2024-10-31 22:10:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:34,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:34,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:34,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:35,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 290 [2024-10-31 22:10:35,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 265 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 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 22:10:35,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:35,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 290 [2024-10-31 22:10:35,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:36,374 INFO L124 PetriNetUnfolderBase]: 985/6371 cut-off events. [2024-10-31 22:10:36,374 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2024-10-31 22:10:36,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 6371 events. 985/6371 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 69387 event pairs, 630 based on Foata normal form. 0/5359 useless extension candidates. Maximal degree in co-relation 7629. Up to 1120 conditions per place. [2024-10-31 22:10:36,478 INFO L140 encePairwiseOnDemand]: 280/290 looper letters, 27 selfloop transitions, 1 changer transitions 0/256 dead transitions. [2024-10-31 22:10:36,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 256 transitions, 588 flow [2024-10-31 22:10:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2024-10-31 22:10:36,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8632183908045977 [2024-10-31 22:10:36,482 INFO L175 Difference]: Start difference. First operand has 264 places, 265 transitions, 550 flow. Second operand 3 states and 751 transitions. [2024-10-31 22:10:36,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 256 transitions, 588 flow [2024-10-31 22:10:36,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 256 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:36,491 INFO L231 Difference]: Finished difference. Result has 255 places, 256 transitions, 530 flow [2024-10-31 22:10:36,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=255, PETRI_TRANSITIONS=256} [2024-10-31 22:10:36,492 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -21 predicate places. [2024-10-31 22:10:36,492 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 256 transitions, 530 flow [2024-10-31 22:10:36,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 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 22:10:36,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:36,494 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 22:10:36,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:10:36,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:36,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:36,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2017621733, now seen corresponding path program 1 times [2024-10-31 22:10:36,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:36,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159960500] [2024-10-31 22:10:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:36,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:36,558 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 22:10:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:36,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159960500] [2024-10-31 22:10:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159960500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694708963] [2024-10-31 22:10:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:36,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:36,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:36,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 290 [2024-10-31 22:10:36,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 256 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 22:10:36,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:36,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 290 [2024-10-31 22:10:36,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:37,031 INFO L124 PetriNetUnfolderBase]: 190/1771 cut-off events. [2024-10-31 22:10:37,031 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-10-31 22:10:37,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 1771 events. 190/1771 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13802 event pairs, 108 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 1996. Up to 196 conditions per place. [2024-10-31 22:10:37,056 INFO L140 encePairwiseOnDemand]: 287/290 looper letters, 15 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-10-31 22:10:37,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 255 transitions, 562 flow [2024-10-31 22:10:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-10-31 22:10:37,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.903448275862069 [2024-10-31 22:10:37,060 INFO L175 Difference]: Start difference. First operand has 255 places, 256 transitions, 530 flow. Second operand 3 states and 786 transitions. [2024-10-31 22:10:37,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 255 transitions, 562 flow [2024-10-31 22:10:37,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 255 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:37,066 INFO L231 Difference]: Finished difference. Result has 255 places, 255 transitions, 531 flow [2024-10-31 22:10:37,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=255, PETRI_TRANSITIONS=255} [2024-10-31 22:10:37,068 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -21 predicate places. [2024-10-31 22:10:37,069 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 255 transitions, 531 flow [2024-10-31 22:10:37,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 22:10:37,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:37,070 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] [2024-10-31 22:10:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:10:37,070 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -46969442, now seen corresponding path program 1 times [2024-10-31 22:10:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:37,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151338022] [2024-10-31 22:10:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:37,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:37,127 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 22:10:37,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151338022] [2024-10-31 22:10:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151338022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:37,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:37,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:37,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788718381] [2024-10-31 22:10:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:37,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:37,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:37,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:37,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 290 [2024-10-31 22:10:37,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 255 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 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 22:10:37,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:37,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 290 [2024-10-31 22:10:37,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:40,830 INFO L124 PetriNetUnfolderBase]: 4660/23986 cut-off events. [2024-10-31 22:10:40,830 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-10-31 22:10:40,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30445 conditions, 23986 events. 4660/23986 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 330556 event pairs, 1667 based on Foata normal form. 0/20563 useless extension candidates. Maximal degree in co-relation 30404. Up to 4132 conditions per place. [2024-10-31 22:10:41,146 INFO L140 encePairwiseOnDemand]: 260/290 looper letters, 48 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2024-10-31 22:10:41,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 284 transitions, 737 flow [2024-10-31 22:10:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 783 transitions. [2024-10-31 22:10:41,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-10-31 22:10:41,150 INFO L175 Difference]: Start difference. First operand has 255 places, 255 transitions, 531 flow. Second operand 3 states and 783 transitions. [2024-10-31 22:10:41,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 284 transitions, 737 flow [2024-10-31 22:10:41,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 284 transitions, 733 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:41,160 INFO L231 Difference]: Finished difference. Result has 257 places, 276 transitions, 713 flow [2024-10-31 22:10:41,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=713, PETRI_PLACES=257, PETRI_TRANSITIONS=276} [2024-10-31 22:10:41,161 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -19 predicate places. [2024-10-31 22:10:41,161 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 276 transitions, 713 flow [2024-10-31 22:10:41,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 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 22:10:41,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:41,162 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:41,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:10:41,162 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:41,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1151193954, now seen corresponding path program 1 times [2024-10-31 22:10:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91642998] [2024-10-31 22:10:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:10:41,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:41,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91642998] [2024-10-31 22:10:41,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91642998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:41,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:41,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:41,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74790636] [2024-10-31 22:10:41,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:41,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:10:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:10:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:10:41,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 290 [2024-10-31 22:10:41,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 276 transitions, 713 flow. Second operand has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 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 22:10:41,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:41,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 290 [2024-10-31 22:10:41,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:42,794 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([873] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread1of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{thrThread1of3ForFork0_#t~ret6#1=|v_thrThread1of3ForFork0_#t~ret6#1_1|, #pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~ret6#1][86], [277#true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 47#$Ultimate##0true, 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-10-31 22:10:42,795 INFO L294 olderBase$Statistics]: this new event has 122 ancestors and is cut-off event [2024-10-31 22:10:42,795 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-10-31 22:10:42,795 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-10-31 22:10:42,795 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-10-31 22:10:43,244 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([873] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread1of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{thrThread1of3ForFork0_#t~ret6#1=|v_thrThread1of3ForFork0_#t~ret6#1_1|, #pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~ret6#1][86], [277#true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 70#L1040-3true, 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-10-31 22:10:43,245 INFO L294 olderBase$Statistics]: this new event has 128 ancestors and is cut-off event [2024-10-31 22:10:43,245 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2024-10-31 22:10:43,245 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2024-10-31 22:10:43,245 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2024-10-31 22:10:43,756 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([943] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][168], [277#true, 132#L1045-2true, 227#L1045-2true, 59#L1060-4true, Black: 291#true, 243#L1043-6true, 296#true, 275#true, 273#true, 293#(= |#race~next~0| 0), 287#(= |#race~len~0| 0)]) [2024-10-31 22:10:43,757 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2024-10-31 22:10:43,757 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2024-10-31 22:10:43,757 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2024-10-31 22:10:43,757 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2024-10-31 22:10:43,811 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread2of3ForFork0_#t~ret6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread2of3ForFork0_#t~ret6#1=|v_thrThread2of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread2of3ForFork0_#t~ret6#1][121], [277#true, 227#L1045-2true, 132#L1045-2true, 291#true, 59#L1060-4true, Black: 293#(= |#race~next~0| 0), 296#true, 275#true, 273#true, 203#L1045-2true, 287#(= |#race~len~0| 0)]) [2024-10-31 22:10:43,811 INFO L294 olderBase$Statistics]: this new event has 135 ancestors and is cut-off event [2024-10-31 22:10:43,811 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-10-31 22:10:43,811 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-10-31 22:10:43,811 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2024-10-31 22:10:44,564 INFO L124 PetriNetUnfolderBase]: 2517/17390 cut-off events. [2024-10-31 22:10:44,564 INFO L125 PetriNetUnfolderBase]: For 565/565 co-relation queries the response was YES. [2024-10-31 22:10:44,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21912 conditions, 17390 events. 2517/17390 cut-off events. For 565/565 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 237451 event pairs, 1063 based on Foata normal form. 1/15068 useless extension candidates. Maximal degree in co-relation 21870. Up to 2203 conditions per place. [2024-10-31 22:10:44,772 INFO L140 encePairwiseOnDemand]: 286/290 looper letters, 20 selfloop transitions, 0 changer transitions 4/279 dead transitions. [2024-10-31 22:10:44,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 279 transitions, 767 flow [2024-10-31 22:10:44,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:10:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:10:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1285 transitions. [2024-10-31 22:10:44,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8862068965517241 [2024-10-31 22:10:44,775 INFO L175 Difference]: Start difference. First operand has 257 places, 276 transitions, 713 flow. Second operand 5 states and 1285 transitions. [2024-10-31 22:10:44,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 279 transitions, 767 flow [2024-10-31 22:10:44,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 279 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:44,808 INFO L231 Difference]: Finished difference. Result has 262 places, 275 transitions, 675 flow [2024-10-31 22:10:44,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=675, PETRI_PLACES=262, PETRI_TRANSITIONS=275} [2024-10-31 22:10:44,809 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -14 predicate places. [2024-10-31 22:10:44,810 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 275 transitions, 675 flow [2024-10-31 22:10:44,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 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 22:10:44,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:44,811 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:44,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:10:44,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-31 22:10:44,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:44,811 INFO L85 PathProgramCache]: Analyzing trace with hash 15122776, now seen corresponding path program 1 times [2024-10-31 22:10:44,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:44,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884005669] [2024-10-31 22:10:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:44,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:44,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:44,853 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:10:44,855 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-10-31 22:10:44,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-10-31 22:10:44,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-10-31 22:10:44,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-10-31 22:10:44,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-10-31 22:10:44,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-10-31 22:10:44,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-10-31 22:10:44,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-10-31 22:10:44,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-10-31 22:10:44,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-10-31 22:10:44,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:10:44,861 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:44,862 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:10:44,862 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-31 22:10:44,930 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:10:44,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 361 transitions, 750 flow [2024-10-31 22:10:45,026 INFO L124 PetriNetUnfolderBase]: 31/407 cut-off events. [2024-10-31 22:10:45,027 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:10:45,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 407 events. 31/407 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1417 event pairs, 0 based on Foata normal form. 0/333 useless extension candidates. Maximal degree in co-relation 332. Up to 10 conditions per place. [2024-10-31 22:10:45,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 361 transitions, 750 flow [2024-10-31 22:10:45,038 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 343 places, 361 transitions, 750 flow [2024-10-31 22:10:45,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:45,040 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;@4497fea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:45,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-10-31 22:10:45,043 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:45,044 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-31 22:10:45,044 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:45,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:45,044 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:45,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-10-31 22:10:45,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1812622224, now seen corresponding path program 1 times [2024-10-31 22:10:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:45,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948177388] [2024-10-31 22:10:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:45,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:45,073 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 22:10:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948177388] [2024-10-31 22:10:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948177388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:45,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308263432] [2024-10-31 22:10:45,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:45,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:45,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:45,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:45,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:45,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 361 [2024-10-31 22:10:45,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 361 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:45,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:45,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 361 [2024-10-31 22:10:45,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:52,246 INFO L124 PetriNetUnfolderBase]: 8203/34879 cut-off events. [2024-10-31 22:10:52,246 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2024-10-31 22:10:52,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46428 conditions, 34879 events. 8203/34879 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 484723 event pairs, 6804 based on Foata normal form. 7100/36380 useless extension candidates. Maximal degree in co-relation 38090. Up to 9608 conditions per place. [2024-10-31 22:10:52,836 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 31 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-10-31 22:10:52,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 333 transitions, 760 flow [2024-10-31 22:10:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:52,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2024-10-31 22:10:52,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956602031394275 [2024-10-31 22:10:52,840 INFO L175 Difference]: Start difference. First operand has 343 places, 361 transitions, 750 flow. Second operand 3 states and 970 transitions. [2024-10-31 22:10:52,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 333 transitions, 760 flow [2024-10-31 22:10:52,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 333 transitions, 754 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:52,853 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 690 flow [2024-10-31 22:10:52,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2024-10-31 22:10:52,858 INFO L277 CegarLoopForPetriNet]: 343 programPoint places, -12 predicate places. [2024-10-31 22:10:52,858 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 690 flow [2024-10-31 22:10:52,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:52,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:52,859 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] [2024-10-31 22:10:52,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:10:52,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-10-31 22:10:52,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1774332754, now seen corresponding path program 1 times [2024-10-31 22:10:52,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:52,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003256772] [2024-10-31 22:10:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:52,894 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 22:10:52,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:52,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003256772] [2024-10-31 22:10:52,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003256772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:52,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:52,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:52,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208049885] [2024-10-31 22:10:52,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:52,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:52,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:52,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 361 [2024-10-31 22:10:52,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 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 22:10:52,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:52,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 361 [2024-10-31 22:10:52,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand