./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/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_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/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_ed2e951c-17a2-4c31-88d6-89973d510f98/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 e22e1beeef18edf77effe210ae0122c1338eccee79cdab905e0b74599361bc08 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:39,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:39,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:56:39,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:39,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:39,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:39,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:39,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:39,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:56:39,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:56:39,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:39,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:39,396 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:39,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:39,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:56:39,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:56:39,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:39,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:56:39,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:39,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:56:39,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:56:39,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:56:39,407 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:56:39,408 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:39,409 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:56:39,410 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:56:39,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:39,411 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:39,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:39,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:39,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:56:39,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:39,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:39,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:56:39,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:56:39,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:39,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:56:39,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:56:39,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:56:39,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:56:39,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:56:39,419 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_ed2e951c-17a2-4c31-88d6-89973d510f98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e22e1beeef18edf77effe210ae0122c1338eccee79cdab905e0b74599361bc08 [2024-10-31 21:56:39,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:39,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:39,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:39,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:39,762 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:39,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i Unable to find full path for "g++" [2024-10-31 21:56:42,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:42,358 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:42,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2024-10-31 21:56:42,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/data/593be5aeb/83eb35d3232e493394613f631ce28a6a/FLAG27bb14bd6 [2024-10-31 21:56:42,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/data/593be5aeb/83eb35d3232e493394613f631ce28a6a [2024-10-31 21:56:42,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:42,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:42,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:42,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:42,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:42,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:42" (1/1) ... [2024-10-31 21:56:42,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54aef957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:42, skipping insertion in model container [2024-10-31 21:56:42,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:42" (1/1) ... [2024-10-31 21:56:42,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:43,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:43,029 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:43,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:43,160 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:43,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43 WrapperNode [2024-10-31 21:56:43,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:43,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:43,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:43,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:43,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,235 INFO L138 Inliner]: procedures = 169, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 99 [2024-10-31 21:56:43,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:43,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:43,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:43,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:43,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:43,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:43,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:43,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:43,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (1/1) ... [2024-10-31 21:56:43,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:43,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:43,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2e951c-17a2-4c31-88d6-89973d510f98/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:56:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:56:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-10-31 21:56:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-10-31 21:56:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:56:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:56:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:56:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:43,382 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 21:56:43,542 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:43,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:43,903 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:56:43,905 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:43,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:43,926 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:56:43,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:43 BoogieIcfgContainer [2024-10-31 21:56:43,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:43,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:56:43,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:56:43,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:56:43,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:56:42" (1/3) ... [2024-10-31 21:56:43,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7ee0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:43, skipping insertion in model container [2024-10-31 21:56:43,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:43" (2/3) ... [2024-10-31 21:56:43,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7ee0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:43, skipping insertion in model container [2024-10-31 21:56:43,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:43" (3/3) ... [2024-10-31 21:56:43,939 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2024-10-31 21:56:43,963 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:56:43,963 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 21:56:43,964 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:56:44,062 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:56:44,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 132 transitions, 271 flow [2024-10-31 21:56:44,271 INFO L124 PetriNetUnfolderBase]: 14/193 cut-off events. [2024-10-31 21:56:44,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:56:44,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 193 events. 14/193 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 465 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. [2024-10-31 21:56:44,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 132 transitions, 271 flow [2024-10-31 21:56:44,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 132 transitions, 271 flow [2024-10-31 21:56:44,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:44,301 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;@2e2c622c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:44,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 21:56:44,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:56:44,339 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-10-31 21:56:44,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:56:44,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:44,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:44,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:44,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:44,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1230436126, now seen corresponding path program 1 times [2024-10-31 21:56:44,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:44,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970954997] [2024-10-31 21:56:44,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:44,964 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 21:56:44,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:44,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970954997] [2024-10-31 21:56:44,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970954997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:44,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:44,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:44,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907709724] [2024-10-31 21:56:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:44,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:56:44,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:56:45,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:45,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 132 [2024-10-31 21:56:45,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 132 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 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 21:56:45,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:45,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 132 [2024-10-31 21:56:45,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:45,407 INFO L124 PetriNetUnfolderBase]: 3/196 cut-off events. [2024-10-31 21:56:45,409 INFO L125 PetriNetUnfolderBase]: For 4/12 co-relation queries the response was YES. [2024-10-31 21:56:45,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 196 events. 3/196 cut-off events. For 4/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 309 event pairs, 0 based on Foata normal form. 9/186 useless extension candidates. Maximal degree in co-relation 67. Up to 17 conditions per place. [2024-10-31 21:56:45,412 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 16 selfloop transitions, 8 changer transitions 7/136 dead transitions. [2024-10-31 21:56:45,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 339 flow [2024-10-31 21:56:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:56:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2024-10-31 21:56:45,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2024-10-31 21:56:45,436 INFO L175 Difference]: Start difference. First operand has 127 places, 132 transitions, 271 flow. Second operand 4 states and 473 transitions. [2024-10-31 21:56:45,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 339 flow [2024-10-31 21:56:45,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:45,450 INFO L231 Difference]: Finished difference. Result has 131 places, 126 transitions, 305 flow [2024-10-31 21:56:45,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=131, PETRI_TRANSITIONS=126} [2024-10-31 21:56:45,459 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 4 predicate places. [2024-10-31 21:56:45,460 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 126 transitions, 305 flow [2024-10-31 21:56:45,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 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 21:56:45,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:45,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:45,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:56:45,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:45,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:45,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2093606866, now seen corresponding path program 1 times [2024-10-31 21:56:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:45,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679447936] [2024-10-31 21:56:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:45,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:46,204 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 21:56:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679447936] [2024-10-31 21:56:46,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679447936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:46,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:46,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:46,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854529693] [2024-10-31 21:56:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:46,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:46,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:46,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:46,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:46,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 132 [2024-10-31 21:56:46,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 126 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 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 21:56:46,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:46,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 132 [2024-10-31 21:56:46,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:46,802 INFO L124 PetriNetUnfolderBase]: 83/506 cut-off events. [2024-10-31 21:56:46,803 INFO L125 PetriNetUnfolderBase]: For 64/70 co-relation queries the response was YES. [2024-10-31 21:56:46,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 506 events. 83/506 cut-off events. For 64/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2496 event pairs, 47 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 640. Up to 191 conditions per place. [2024-10-31 21:56:46,809 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 35 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-10-31 21:56:46,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 147 transitions, 461 flow [2024-10-31 21:56:46,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:56:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:56:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 602 transitions. [2024-10-31 21:56:46,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76010101010101 [2024-10-31 21:56:46,820 INFO L175 Difference]: Start difference. First operand has 131 places, 126 transitions, 305 flow. Second operand 6 states and 602 transitions. [2024-10-31 21:56:46,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 147 transitions, 461 flow [2024-10-31 21:56:46,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 147 transitions, 459 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:46,829 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 453 flow [2024-10-31 21:56:46,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=453, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2024-10-31 21:56:46,831 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 13 predicate places. [2024-10-31 21:56:46,831 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 453 flow [2024-10-31 21:56:46,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 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 21:56:46,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:46,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:46,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:56:46,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:46,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:46,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1301886202, now seen corresponding path program 1 times [2024-10-31 21:56:46,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:46,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580194480] [2024-10-31 21:56:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:46,893 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 21:56:46,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580194480] [2024-10-31 21:56:46,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580194480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:46,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:46,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:56:46,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051903909] [2024-10-31 21:56:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:46,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:56:46,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:56:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:56:46,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 132 [2024-10-31 21:56:46,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 21:56:46,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:46,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 132 [2024-10-31 21:56:46,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:46,978 INFO L124 PetriNetUnfolderBase]: 33/309 cut-off events. [2024-10-31 21:56:46,978 INFO L125 PetriNetUnfolderBase]: For 37/39 co-relation queries the response was YES. [2024-10-31 21:56:46,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 309 events. 33/309 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1000 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 418. Up to 45 conditions per place. [2024-10-31 21:56:46,981 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 3 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-10-31 21:56:46,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 461 flow [2024-10-31 21:56:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:56:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:56:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2024-10-31 21:56:46,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-10-31 21:56:46,984 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 453 flow. Second operand 3 states and 363 transitions. [2024-10-31 21:56:46,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 461 flow [2024-10-31 21:56:46,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:46,991 INFO L231 Difference]: Finished difference. Result has 141 places, 146 transitions, 455 flow [2024-10-31 21:56:46,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=141, PETRI_TRANSITIONS=146} [2024-10-31 21:56:46,992 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 14 predicate places. [2024-10-31 21:56:46,992 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 146 transitions, 455 flow [2024-10-31 21:56:46,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 21:56:46,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:46,993 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] [2024-10-31 21:56:46,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:56:46,994 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:46,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash -507708417, now seen corresponding path program 1 times [2024-10-31 21:56:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:46,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865942147] [2024-10-31 21:56:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:46,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:47,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865942147] [2024-10-31 21:56:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865942147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274115371] [2024-10-31 21:56:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:47,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:47,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:47,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:47,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:47,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 132 [2024-10-31 21:56:47,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 146 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 103.16666666666667) internal successors, (619), 6 states have internal predecessors, (619), 0 states have call successors, (0), 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 21:56:47,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:47,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 132 [2024-10-31 21:56:47,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:48,039 INFO L124 PetriNetUnfolderBase]: 131/551 cut-off events. [2024-10-31 21:56:48,039 INFO L125 PetriNetUnfolderBase]: For 147/162 co-relation queries the response was YES. [2024-10-31 21:56:48,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 551 events. 131/551 cut-off events. For 147/162 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2595 event pairs, 23 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 1097. Up to 247 conditions per place. [2024-10-31 21:56:48,044 INFO L140 encePairwiseOnDemand]: 117/132 looper letters, 38 selfloop transitions, 48 changer transitions 0/189 dead transitions. [2024-10-31 21:56:48,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 189 transitions, 783 flow [2024-10-31 21:56:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:56:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:56:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2024-10-31 21:56:48,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8434343434343434 [2024-10-31 21:56:48,046 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 455 flow. Second operand 6 states and 668 transitions. [2024-10-31 21:56:48,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 189 transitions, 783 flow [2024-10-31 21:56:48,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 189 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:56:48,054 INFO L231 Difference]: Finished difference. Result has 149 places, 189 transitions, 839 flow [2024-10-31 21:56:48,054 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=839, PETRI_PLACES=149, PETRI_TRANSITIONS=189} [2024-10-31 21:56:48,055 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 22 predicate places. [2024-10-31 21:56:48,055 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 189 transitions, 839 flow [2024-10-31 21:56:48,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.16666666666667) internal successors, (619), 6 states have internal predecessors, (619), 0 states have call successors, (0), 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 21:56:48,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:48,056 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:48,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:56:48,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:48,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 873607965, now seen corresponding path program 1 times [2024-10-31 21:56:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:48,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438019067] [2024-10-31 21:56:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:56:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:48,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438019067] [2024-10-31 21:56:48,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438019067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:48,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:48,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934345973] [2024-10-31 21:56:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:48,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:48,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:48,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2024-10-31 21:56:48,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 189 transitions, 839 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 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 21:56:48,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:48,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2024-10-31 21:56:48,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:49,066 INFO L124 PetriNetUnfolderBase]: 159/718 cut-off events. [2024-10-31 21:56:49,067 INFO L125 PetriNetUnfolderBase]: For 551/624 co-relation queries the response was YES. [2024-10-31 21:56:49,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1964 conditions, 718 events. 159/718 cut-off events. For 551/624 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4084 event pairs, 26 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 1774. Up to 300 conditions per place. [2024-10-31 21:56:49,074 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 87 selfloop transitions, 32 changer transitions 0/217 dead transitions. [2024-10-31 21:56:49,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 217 transitions, 1248 flow [2024-10-31 21:56:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:56:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:56:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2024-10-31 21:56:49,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7992424242424242 [2024-10-31 21:56:49,077 INFO L175 Difference]: Start difference. First operand has 149 places, 189 transitions, 839 flow. Second operand 6 states and 633 transitions. [2024-10-31 21:56:49,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 217 transitions, 1248 flow [2024-10-31 21:56:49,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 217 transitions, 1230 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:49,094 INFO L231 Difference]: Finished difference. Result has 159 places, 216 transitions, 1147 flow [2024-10-31 21:56:49,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1147, PETRI_PLACES=159, PETRI_TRANSITIONS=216} [2024-10-31 21:56:49,096 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 32 predicate places. [2024-10-31 21:56:49,096 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 216 transitions, 1147 flow [2024-10-31 21:56:49,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 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 21:56:49,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:49,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:49,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:56:49,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:49,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash -351731137, now seen corresponding path program 1 times [2024-10-31 21:56:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106475760] [2024-10-31 21:56:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:49,162 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 21:56:49,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:49,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106475760] [2024-10-31 21:56:49,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106475760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:49,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:49,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:56:49,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469518236] [2024-10-31 21:56:49,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:49,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:56:49,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:49,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:56:49,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:56:49,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 132 [2024-10-31 21:56:49,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 216 transitions, 1147 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 21:56:49,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:49,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 132 [2024-10-31 21:56:49,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:49,320 INFO L124 PetriNetUnfolderBase]: 134/590 cut-off events. [2024-10-31 21:56:49,320 INFO L125 PetriNetUnfolderBase]: For 464/481 co-relation queries the response was YES. [2024-10-31 21:56:49,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 590 events. 134/590 cut-off events. For 464/481 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3028 event pairs, 6 based on Foata normal form. 1/587 useless extension candidates. Maximal degree in co-relation 1563. Up to 129 conditions per place. [2024-10-31 21:56:49,326 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 5 selfloop transitions, 2 changer transitions 19/215 dead transitions. [2024-10-31 21:56:49,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 1159 flow [2024-10-31 21:56:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:56:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:56:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-10-31 21:56:49,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2024-10-31 21:56:49,328 INFO L175 Difference]: Start difference. First operand has 159 places, 216 transitions, 1147 flow. Second operand 3 states and 359 transitions. [2024-10-31 21:56:49,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 1159 flow [2024-10-31 21:56:49,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 215 transitions, 1103 flow, removed 28 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:49,344 INFO L231 Difference]: Finished difference. Result has 160 places, 196 transitions, 1043 flow [2024-10-31 21:56:49,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1043, PETRI_PLACES=160, PETRI_TRANSITIONS=196} [2024-10-31 21:56:49,345 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 33 predicate places. [2024-10-31 21:56:49,345 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 196 transitions, 1043 flow [2024-10-31 21:56:49,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 21:56:49,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:49,346 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:49,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:56:49,347 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 21:56:49,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash 208217909, now seen corresponding path program 1 times [2024-10-31 21:56:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:49,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396334902] [2024-10-31 21:56:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:49,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:49,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:49,448 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:56:49,449 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-31 21:56:49,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-10-31 21:56:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-31 21:56:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-31 21:56:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-31 21:56:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-31 21:56:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-31 21:56:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-31 21:56:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-31 21:56:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-31 21:56:49,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:56:49,455 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:49,458 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:56:49,458 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 21:56:49,482 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:56:49,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 326 flow [2024-10-31 21:56:49,530 INFO L124 PetriNetUnfolderBase]: 27/340 cut-off events. [2024-10-31 21:56:49,530 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-31 21:56:49,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 340 events. 27/340 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2024-10-31 21:56:49,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 155 transitions, 326 flow [2024-10-31 21:56:49,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 155 transitions, 326 flow [2024-10-31 21:56:49,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:49,537 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;@2e2c622c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:49,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 21:56:49,543 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:56:49,543 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-10-31 21:56:49,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:56:49,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:49,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:49,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:56:49,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash -398444194, now seen corresponding path program 1 times [2024-10-31 21:56:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:49,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734591314] [2024-10-31 21:56:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:49,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:49,630 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 21:56:49,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:49,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734591314] [2024-10-31 21:56:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734591314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:49,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:49,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439550106] [2024-10-31 21:56:49,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:49,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:56:49,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:49,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:56:49,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:49,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 155 [2024-10-31 21:56:49,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 155 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 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 21:56:49,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:49,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 155 [2024-10-31 21:56:49,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:49,890 INFO L124 PetriNetUnfolderBase]: 10/400 cut-off events. [2024-10-31 21:56:49,890 INFO L125 PetriNetUnfolderBase]: For 20/38 co-relation queries the response was YES. [2024-10-31 21:56:49,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 400 events. 10/400 cut-off events. For 20/38 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1278 event pairs, 0 based on Foata normal form. 19/377 useless extension candidates. Maximal degree in co-relation 231. Up to 42 conditions per place. [2024-10-31 21:56:49,894 INFO L140 encePairwiseOnDemand]: 137/155 looper letters, 24 selfloop transitions, 9 changer transitions 4/163 dead transitions. [2024-10-31 21:56:49,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 420 flow [2024-10-31 21:56:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:56:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 563 transitions. [2024-10-31 21:56:49,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080645161290323 [2024-10-31 21:56:49,897 INFO L175 Difference]: Start difference. First operand has 151 places, 155 transitions, 326 flow. Second operand 4 states and 563 transitions. [2024-10-31 21:56:49,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 420 flow [2024-10-31 21:56:49,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 163 transitions, 420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:49,901 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 378 flow [2024-10-31 21:56:49,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=378, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2024-10-31 21:56:49,903 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 4 predicate places. [2024-10-31 21:56:49,903 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 378 flow [2024-10-31 21:56:49,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 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 21:56:49,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:49,904 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:49,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:56:49,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:56:49,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1049289079, now seen corresponding path program 1 times [2024-10-31 21:56:49,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:49,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005757602] [2024-10-31 21:56:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:49,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:50,315 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 21:56:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005757602] [2024-10-31 21:56:50,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005757602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:50,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:50,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:50,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704512026] [2024-10-31 21:56:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:50,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:50,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 155 [2024-10-31 21:56:50,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 153 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:56:50,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:50,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 155 [2024-10-31 21:56:50,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:51,488 INFO L124 PetriNetUnfolderBase]: 1178/4239 cut-off events. [2024-10-31 21:56:51,489 INFO L125 PetriNetUnfolderBase]: For 444/466 co-relation queries the response was YES. [2024-10-31 21:56:51,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6807 conditions, 4239 events. 1178/4239 cut-off events. For 444/466 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 36315 event pairs, 769 based on Foata normal form. 0/3826 useless extension candidates. Maximal degree in co-relation 4257. Up to 1921 conditions per place. [2024-10-31 21:56:51,515 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 45 selfloop transitions, 38 changer transitions 0/191 dead transitions. [2024-10-31 21:56:51,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 191 transitions, 625 flow [2024-10-31 21:56:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:56:51,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:56:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2024-10-31 21:56:51,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817204301075269 [2024-10-31 21:56:51,518 INFO L175 Difference]: Start difference. First operand has 155 places, 153 transitions, 378 flow. Second operand 6 states and 727 transitions. [2024-10-31 21:56:51,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 191 transitions, 625 flow [2024-10-31 21:56:51,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 191 transitions, 623 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:51,524 INFO L231 Difference]: Finished difference. Result has 164 places, 190 transitions, 630 flow [2024-10-31 21:56:51,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=164, PETRI_TRANSITIONS=190} [2024-10-31 21:56:51,526 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 13 predicate places. [2024-10-31 21:56:51,526 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 190 transitions, 630 flow [2024-10-31 21:56:51,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:56:51,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:51,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:51,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:56:51,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:56:51,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:51,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1371913771, now seen corresponding path program 1 times [2024-10-31 21:56:51,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:51,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506335999] [2024-10-31 21:56:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:51,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,582 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 21:56:51,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506335999] [2024-10-31 21:56:51,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506335999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:51,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:51,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:56:51,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451664437] [2024-10-31 21:56:51,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:51,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:56:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:51,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:56:51,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:56:51,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 155 [2024-10-31 21:56:51,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 190 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 21:56:51,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:51,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 155 [2024-10-31 21:56:51,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:52,365 INFO L124 PetriNetUnfolderBase]: 660/3566 cut-off events. [2024-10-31 21:56:52,366 INFO L125 PetriNetUnfolderBase]: For 569/606 co-relation queries the response was YES. [2024-10-31 21:56:52,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5907 conditions, 3566 events. 660/3566 cut-off events. For 569/606 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 31640 event pairs, 120 based on Foata normal form. 0/3250 useless extension candidates. Maximal degree in co-relation 4883. Up to 759 conditions per place. [2024-10-31 21:56:52,403 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 15 selfloop transitions, 6 changer transitions 0/199 dead transitions. [2024-10-31 21:56:52,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 199 transitions, 701 flow [2024-10-31 21:56:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:56:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:56:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2024-10-31 21:56:52,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9268817204301075 [2024-10-31 21:56:52,406 INFO L175 Difference]: Start difference. First operand has 164 places, 190 transitions, 630 flow. Second operand 3 states and 431 transitions. [2024-10-31 21:56:52,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 199 transitions, 701 flow [2024-10-31 21:56:52,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 199 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:56:52,421 INFO L231 Difference]: Finished difference. Result has 168 places, 196 transitions, 682 flow [2024-10-31 21:56:52,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=168, PETRI_TRANSITIONS=196} [2024-10-31 21:56:52,423 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 17 predicate places. [2024-10-31 21:56:52,424 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 196 transitions, 682 flow [2024-10-31 21:56:52,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 21:56:52,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:52,425 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] [2024-10-31 21:56:52,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:56:52,426 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:56:52,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 478959066, now seen corresponding path program 1 times [2024-10-31 21:56:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:52,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411223135] [2024-10-31 21:56:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:52,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:52,905 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 21:56:52,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411223135] [2024-10-31 21:56:52,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411223135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:52,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:52,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:52,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975211827] [2024-10-31 21:56:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:52,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:52,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:52,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:53,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 155 [2024-10-31 21:56:53,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 196 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 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 21:56:53,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:53,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 155 [2024-10-31 21:56:53,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:56:56,296 INFO L124 PetriNetUnfolderBase]: 3407/12486 cut-off events. [2024-10-31 21:56:56,296 INFO L125 PetriNetUnfolderBase]: For 3002/3161 co-relation queries the response was YES. [2024-10-31 21:56:56,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24792 conditions, 12486 events. 3407/12486 cut-off events. For 3002/3161 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 131523 event pairs, 722 based on Foata normal form. 1/11308 useless extension candidates. Maximal degree in co-relation 21030. Up to 4277 conditions per place. [2024-10-31 21:56:56,410 INFO L140 encePairwiseOnDemand]: 132/155 looper letters, 95 selfloop transitions, 96 changer transitions 0/322 dead transitions. [2024-10-31 21:56:56,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 322 transitions, 1580 flow [2024-10-31 21:56:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:56:56,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:56:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-10-31 21:56:56,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8903225806451613 [2024-10-31 21:56:56,414 INFO L175 Difference]: Start difference. First operand has 168 places, 196 transitions, 682 flow. Second operand 6 states and 828 transitions. [2024-10-31 21:56:56,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 322 transitions, 1580 flow [2024-10-31 21:56:56,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 322 transitions, 1568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:56:56,445 INFO L231 Difference]: Finished difference. Result has 175 places, 290 transitions, 1466 flow [2024-10-31 21:56:56,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1466, PETRI_PLACES=175, PETRI_TRANSITIONS=290} [2024-10-31 21:56:56,446 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 24 predicate places. [2024-10-31 21:56:56,447 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 290 transitions, 1466 flow [2024-10-31 21:56:56,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 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 21:56:56,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:56,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:56,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 21:56:56,449 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:56:56,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash -576630333, now seen corresponding path program 1 times [2024-10-31 21:56:56,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:56,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493363241] [2024-10-31 21:56:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:56:56,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:56,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493363241] [2024-10-31 21:56:56,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493363241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:56,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:56,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:56,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312596137] [2024-10-31 21:56:56,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:56,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:56:56,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:56:56,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:57,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 155 [2024-10-31 21:56:57,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 290 transitions, 1466 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 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 21:56:57,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:57,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 155 [2024-10-31 21:56:57,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:00,878 INFO L124 PetriNetUnfolderBase]: 4647/17041 cut-off events. [2024-10-31 21:57:00,879 INFO L125 PetriNetUnfolderBase]: For 11792/12614 co-relation queries the response was YES. [2024-10-31 21:57:00,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42434 conditions, 17041 events. 4647/17041 cut-off events. For 11792/12614 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 194106 event pairs, 1012 based on Foata normal form. 55/15447 useless extension candidates. Maximal degree in co-relation 35434. Up to 6497 conditions per place. [2024-10-31 21:57:01,043 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 147 selfloop transitions, 72 changer transitions 0/359 dead transitions. [2024-10-31 21:57:01,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 359 transitions, 2356 flow [2024-10-31 21:57:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:57:01,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2024-10-31 21:57:01,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8150537634408602 [2024-10-31 21:57:01,047 INFO L175 Difference]: Start difference. First operand has 175 places, 290 transitions, 1466 flow. Second operand 6 states and 758 transitions. [2024-10-31 21:57:01,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 359 transitions, 2356 flow [2024-10-31 21:57:01,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 359 transitions, 2338 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:01,164 INFO L231 Difference]: Finished difference. Result has 185 places, 357 transitions, 2242 flow [2024-10-31 21:57:01,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2242, PETRI_PLACES=185, PETRI_TRANSITIONS=357} [2024-10-31 21:57:01,166 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 34 predicate places. [2024-10-31 21:57:01,166 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 357 transitions, 2242 flow [2024-10-31 21:57:01,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 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 21:57:01,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:01,167 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:01,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 21:57:01,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:57:01,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2023845364, now seen corresponding path program 1 times [2024-10-31 21:57:01,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:01,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173197180] [2024-10-31 21:57:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:01,217 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 21:57:01,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:01,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173197180] [2024-10-31 21:57:01,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173197180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:01,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:01,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:01,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648218373] [2024-10-31 21:57:01,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:01,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:01,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:01,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:01,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:01,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 155 [2024-10-31 21:57:01,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 357 transitions, 2242 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 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 21:57:01,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:01,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 155 [2024-10-31 21:57:01,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:03,629 INFO L124 PetriNetUnfolderBase]: 3748/14854 cut-off events. [2024-10-31 21:57:03,629 INFO L125 PetriNetUnfolderBase]: For 10972/11403 co-relation queries the response was YES. [2024-10-31 21:57:03,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36427 conditions, 14854 events. 3748/14854 cut-off events. For 10972/11403 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 169210 event pairs, 335 based on Foata normal form. 33/13731 useless extension candidates. Maximal degree in co-relation 31504. Up to 3123 conditions per place. [2024-10-31 21:57:03,826 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 16 selfloop transitions, 7 changer transitions 0/364 dead transitions. [2024-10-31 21:57:03,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 364 transitions, 2316 flow [2024-10-31 21:57:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-10-31 21:57:03,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9182795698924732 [2024-10-31 21:57:03,829 INFO L175 Difference]: Start difference. First operand has 185 places, 357 transitions, 2242 flow. Second operand 3 states and 427 transitions. [2024-10-31 21:57:03,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 364 transitions, 2316 flow [2024-10-31 21:57:03,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 364 transitions, 2176 flow, removed 70 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:03,956 INFO L231 Difference]: Finished difference. Result has 189 places, 362 transitions, 2158 flow [2024-10-31 21:57:03,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=189, PETRI_TRANSITIONS=362} [2024-10-31 21:57:03,958 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 38 predicate places. [2024-10-31 21:57:03,958 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 362 transitions, 2158 flow [2024-10-31 21:57:03,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 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 21:57:03,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:03,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:03,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 21:57:03,959 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 21:57:03,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1347297248, now seen corresponding path program 1 times [2024-10-31 21:57:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:03,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942828813] [2024-10-31 21:57:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:03,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:04,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942828813] [2024-10-31 21:57:04,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942828813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:04,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:04,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 21:57:04,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784853498] [2024-10-31 21:57:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:04,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 21:57:04,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:04,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:57:04,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:57:05,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 155 [2024-10-31 21:57:05,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 362 transitions, 2158 flow. Second operand has 10 states, 10 states have (on average 113.7) internal successors, (1137), 10 states have internal predecessors, (1137), 0 states have call successors, (0), 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 21:57:05,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:05,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 155 [2024-10-31 21:57:05,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand