./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/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_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/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_982d7a91-14af-4716-8c9e-2a32723b1f6e/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 f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:52,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:52,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:06:52,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:52,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:52,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:52,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:52,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:52,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:52,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:52,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:52,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:52,409 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:52,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:52,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:52,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:52,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:52,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:52,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:52,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:52,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:52,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:52,417 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:06:52,417 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:52,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:52,418 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:52,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:52,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:52,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:52,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:52,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:52,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:52,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:52,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:52,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:52,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:52,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:52,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:52,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:52,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:52,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:52,429 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_982d7a91-14af-4716-8c9e-2a32723b1f6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2024-10-31 22:06:52,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:52,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:52,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:52,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:52,763 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:52,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-lit/fkp2014.i Unable to find full path for "g++" [2024-10-31 22:06:55,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:55,437 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:55,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/sv-benchmarks/c/pthread-lit/fkp2014.i [2024-10-31 22:06:55,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/data/e496573f8/3084f3a32d1443a8b52e27d86a10e7b3/FLAG7b138dcbd [2024-10-31 22:06:55,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/data/e496573f8/3084f3a32d1443a8b52e27d86a10e7b3 [2024-10-31 22:06:55,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:55,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:55,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:55,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:55,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:55,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:55" (1/1) ... [2024-10-31 22:06:55,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6835a665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:55, skipping insertion in model container [2024-10-31 22:06:55,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:55" (1/1) ... [2024-10-31 22:06:55,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:56,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:56,128 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:56,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:56,224 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:56,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56 WrapperNode [2024-10-31 22:06:56,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:56,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:56,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:56,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:56,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,277 INFO L138 Inliner]: procedures = 172, calls = 16, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 82 [2024-10-31 22:06:56,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:56,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:56,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:56,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:56,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:56,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:56,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:56,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:56,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (1/1) ... [2024-10-31 22:06:56,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:56,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:56,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:56,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-10-31 22:06:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-10-31 22:06:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:06:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:56,400 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:56,528 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:56,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:56,698 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:56,698 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:56,762 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:56,762 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:06:56,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:56 BoogieIcfgContainer [2024-10-31 22:06:56,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:56,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:56,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:56,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:56,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:55" (1/3) ... [2024-10-31 22:06:56,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6786b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:56, skipping insertion in model container [2024-10-31 22:06:56,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:56" (2/3) ... [2024-10-31 22:06:56,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6786b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:56, skipping insertion in model container [2024-10-31 22:06:56,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:56" (3/3) ... [2024-10-31 22:06:56,776 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2024-10-31 22:06:56,796 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:56,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:06:56,796 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:56,846 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:06:56,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 81 transitions, 166 flow [2024-10-31 22:06:56,960 INFO L124 PetriNetUnfolderBase]: 5/91 cut-off events. [2024-10-31 22:06:56,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:56,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 5/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2024-10-31 22:06:56,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 81 transitions, 166 flow [2024-10-31 22:06:56,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 81 transitions, 166 flow [2024-10-31 22:06:56,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:56,989 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;@7dfaea0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:56,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:06:56,996 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:56,997 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-10-31 22:06:56,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:56,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:56,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:56,999 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:06:57,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:57,005 INFO L85 PathProgramCache]: Analyzing trace with hash -589904621, now seen corresponding path program 1 times [2024-10-31 22:06:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:57,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747977481] [2024-10-31 22:06:57,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:57,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747977481] [2024-10-31 22:06:57,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747977481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:57,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:57,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126786635] [2024-10-31 22:06:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:57,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-10-31 22:06:57,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:57,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-10-31 22:06:57,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:57,510 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2024-10-31 22:06:57,513 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:06:57,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 104 events. 3/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 3 based on Foata normal form. 9/102 useless extension candidates. Maximal degree in co-relation 73. Up to 16 conditions per place. [2024-10-31 22:06:57,520 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 8 selfloop transitions, 2 changer transitions 1/70 dead transitions. [2024-10-31 22:06:57,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 70 transitions, 164 flow [2024-10-31 22:06:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:57,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-10-31 22:06:57,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.831275720164609 [2024-10-31 22:06:57,545 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 166 flow. Second operand 3 states and 202 transitions. [2024-10-31 22:06:57,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 70 transitions, 164 flow [2024-10-31 22:06:57,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:57,552 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 146 flow [2024-10-31 22:06:57,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-10-31 22:06:57,559 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -5 predicate places. [2024-10-31 22:06:57,559 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 146 flow [2024-10-31 22:06:57,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:57,560 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] [2024-10-31 22:06:57,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:57,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:06:57,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1120296058, now seen corresponding path program 1 times [2024-10-31 22:06:57,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:57,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720873406] [2024-10-31 22:06:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:57,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720873406] [2024-10-31 22:06:57,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720873406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:57,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:57,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567256285] [2024-10-31 22:06:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:57,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 81 [2024-10-31 22:06:57,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:57,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 81 [2024-10-31 22:06:57,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:57,734 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2024-10-31 22:06:57,734 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:06:57,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-10-31 22:06:57,735 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 4 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-10-31 22:06:57,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 156 flow [2024-10-31 22:06:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-10-31 22:06:57,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.831275720164609 [2024-10-31 22:06:57,739 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 146 flow. Second operand 3 states and 202 transitions. [2024-10-31 22:06:57,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 156 flow [2024-10-31 22:06:57,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:57,742 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 144 flow [2024-10-31 22:06:57,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2024-10-31 22:06:57,744 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -7 predicate places. [2024-10-31 22:06:57,744 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 144 flow [2024-10-31 22:06:57,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:57,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:57,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:57,746 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:06:57,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1432288008, now seen corresponding path program 1 times [2024-10-31 22:06:57,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:57,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017919327] [2024-10-31 22:06:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:57,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017919327] [2024-10-31 22:06:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017919327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:57,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:57,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:57,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021773379] [2024-10-31 22:06:57,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:57,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:57,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:57,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-10-31 22:06:57,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:57,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-10-31 22:06:57,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:57,945 INFO L124 PetriNetUnfolderBase]: 0/76 cut-off events. [2024-10-31 22:06:57,946 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:06:57,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 0/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2024-10-31 22:06:57,946 INFO L140 encePairwiseOnDemand]: 79/81 looper letters, 4 selfloop transitions, 1 changer transitions 5/67 dead transitions. [2024-10-31 22:06:57,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 152 flow [2024-10-31 22:06:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-10-31 22:06:57,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2024-10-31 22:06:57,951 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 144 flow. Second operand 3 states and 204 transitions. [2024-10-31 22:06:57,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 152 flow [2024-10-31 22:06:57,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:57,958 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 130 flow [2024-10-31 22:06:57,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-10-31 22:06:57,959 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -8 predicate places. [2024-10-31 22:06:57,959 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 130 flow [2024-10-31 22:06:57,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:57,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:57,961 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:57,962 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-31 22:06:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1134170145, now seen corresponding path program 1 times [2024-10-31 22:06:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23723257] [2024-10-31 22:06:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:57,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:58,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:58,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:58,067 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:06:58,068 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-10-31 22:06:58,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-10-31 22:06:58,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-10-31 22:06:58,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-10-31 22:06:58,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-10-31 22:06:58,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-10-31 22:06:58,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-10-31 22:06:58,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-10-31 22:06:58,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-10-31 22:06:58,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-10-31 22:06:58,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-10-31 22:06:58,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-10-31 22:06:58,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-10-31 22:06:58,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-10-31 22:06:58,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:58,082 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:06:58,087 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:06:58,087 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:06:58,129 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:06:58,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 114 transitions, 238 flow [2024-10-31 22:06:58,185 INFO L124 PetriNetUnfolderBase]: 8/139 cut-off events. [2024-10-31 22:06:58,186 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:06:58,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 139 events. 8/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 242 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2024-10-31 22:06:58,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 114 transitions, 238 flow [2024-10-31 22:06:58,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 114 transitions, 238 flow [2024-10-31 22:06:58,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:58,195 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;@7dfaea0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:58,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:06:58,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:58,204 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-10-31 22:06:58,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:58,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:58,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:58,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:06:58,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 775181189, now seen corresponding path program 1 times [2024-10-31 22:06:58,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360254551] [2024-10-31 22:06:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360254551] [2024-10-31 22:06:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360254551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237299590] [2024-10-31 22:06:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:58,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:58,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:58,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:58,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2024-10-31 22:06:58,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 114 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:58,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2024-10-31 22:06:58,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:58,431 INFO L124 PetriNetUnfolderBase]: 39/377 cut-off events. [2024-10-31 22:06:58,431 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:06:58,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 377 events. 39/377 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1882 event pairs, 39 based on Foata normal form. 47/371 useless extension candidates. Maximal degree in co-relation 335. Up to 84 conditions per place. [2024-10-31 22:06:58,436 INFO L140 encePairwiseOnDemand]: 97/114 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-10-31 22:06:58,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 95 transitions, 228 flow [2024-10-31 22:06:58,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-10-31 22:06:58,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8128654970760234 [2024-10-31 22:06:58,441 INFO L175 Difference]: Start difference. First operand has 113 places, 114 transitions, 238 flow. Second operand 3 states and 278 transitions. [2024-10-31 22:06:58,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 95 transitions, 228 flow [2024-10-31 22:06:58,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:58,456 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 202 flow [2024-10-31 22:06:58,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-10-31 22:06:58,458 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -11 predicate places. [2024-10-31 22:06:58,459 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 202 flow [2024-10-31 22:06:58,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:58,461 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] [2024-10-31 22:06:58,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:58,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:06:58,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1114133670, now seen corresponding path program 1 times [2024-10-31 22:06:58,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030839968] [2024-10-31 22:06:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:58,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:58,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030839968] [2024-10-31 22:06:58,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030839968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:58,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:58,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634583326] [2024-10-31 22:06:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:58,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:58,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:58,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2024-10-31 22:06:58,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:58,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2024-10-31 22:06:58,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:58,639 INFO L124 PetriNetUnfolderBase]: 20/305 cut-off events. [2024-10-31 22:06:58,639 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:06:58,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 305 events. 20/305 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1294 event pairs, 7 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 360. Up to 30 conditions per place. [2024-10-31 22:06:58,644 INFO L140 encePairwiseOnDemand]: 106/114 looper letters, 16 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-10-31 22:06:58,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 103 transitions, 269 flow [2024-10-31 22:06:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-10-31 22:06:58,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8157894736842105 [2024-10-31 22:06:58,646 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 202 flow. Second operand 3 states and 279 transitions. [2024-10-31 22:06:58,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 103 transitions, 269 flow [2024-10-31 22:06:58,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:58,651 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 250 flow [2024-10-31 22:06:58,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-10-31 22:06:58,653 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -10 predicate places. [2024-10-31 22:06:58,653 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 250 flow [2024-10-31 22:06:58,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:58,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:58,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:58,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:06:58,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1235613288, now seen corresponding path program 1 times [2024-10-31 22:06:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256629960] [2024-10-31 22:06:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:58,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:58,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256629960] [2024-10-31 22:06:58,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256629960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:58,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:58,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2316757] [2024-10-31 22:06:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:58,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:58,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 114 [2024-10-31 22:06:58,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:58,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 114 [2024-10-31 22:06:58,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:58,905 INFO L124 PetriNetUnfolderBase]: 36/418 cut-off events. [2024-10-31 22:06:58,905 INFO L125 PetriNetUnfolderBase]: For 86/90 co-relation queries the response was YES. [2024-10-31 22:06:58,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 418 events. 36/418 cut-off events. For 86/90 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2270 event pairs, 9 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 512. Up to 66 conditions per place. [2024-10-31 22:06:58,908 INFO L140 encePairwiseOnDemand]: 106/114 looper letters, 17 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-10-31 22:06:58,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 327 flow [2024-10-31 22:06:58,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2024-10-31 22:06:58,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8216374269005848 [2024-10-31 22:06:58,910 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 250 flow. Second operand 3 states and 281 transitions. [2024-10-31 22:06:58,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 327 flow [2024-10-31 22:06:58,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:58,914 INFO L231 Difference]: Finished difference. Result has 105 places, 106 transitions, 290 flow [2024-10-31 22:06:58,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=105, PETRI_TRANSITIONS=106} [2024-10-31 22:06:58,915 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, -8 predicate places. [2024-10-31 22:06:58,916 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 106 transitions, 290 flow [2024-10-31 22:06:58,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:58,916 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2024-10-31 22:06:58,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:58,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:06:58,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1194014591, now seen corresponding path program 1 times [2024-10-31 22:06:58,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127133585] [2024-10-31 22:06:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:58,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:58,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:58,974 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:06:58,974 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-10-31 22:06:58,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-10-31 22:06:58,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-10-31 22:06:58,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-10-31 22:06:58,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-10-31 22:06:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-10-31 22:06:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-10-31 22:06:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-10-31 22:06:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-10-31 22:06:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-10-31 22:06:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-10-31 22:06:58,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-10-31 22:06:58,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-10-31 22:06:58,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-10-31 22:06:58,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-10-31 22:06:58,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-10-31 22:06:58,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-10-31 22:06:58,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-10-31 22:06:58,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-10-31 22:06:58,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-10-31 22:06:58,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:58,983 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:06:58,984 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:06:58,984 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:06:59,021 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:06:59,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 147 transitions, 312 flow [2024-10-31 22:06:59,056 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-10-31 22:06:59,057 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:06:59,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 11/187 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 391 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 143. Up to 8 conditions per place. [2024-10-31 22:06:59,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 147 transitions, 312 flow [2024-10-31 22:06:59,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 147 transitions, 312 flow [2024-10-31 22:06:59,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:59,064 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;@7dfaea0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:59,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-31 22:06:59,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:59,067 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-10-31 22:06:59,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:59,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:59,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:59,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:06:59,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1533492968, now seen corresponding path program 1 times [2024-10-31 22:06:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:59,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697311269] [2024-10-31 22:06:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:59,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697311269] [2024-10-31 22:06:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697311269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:59,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:59,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858247235] [2024-10-31 22:06:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:59,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:59,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:59,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2024-10-31 22:06:59,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 147 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:59,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2024-10-31 22:06:59,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:59,453 INFO L124 PetriNetUnfolderBase]: 279/1558 cut-off events. [2024-10-31 22:06:59,453 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-10-31 22:06:59,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1558 events. 279/1558 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12739 event pairs, 279 based on Foata normal form. 242/1573 useless extension candidates. Maximal degree in co-relation 1521. Up to 452 conditions per place. [2024-10-31 22:06:59,464 INFO L140 encePairwiseOnDemand]: 124/147 looper letters, 16 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-10-31 22:06:59,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 120 transitions, 294 flow [2024-10-31 22:06:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-10-31 22:06:59,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027210884353742 [2024-10-31 22:06:59,468 INFO L175 Difference]: Start difference. First operand has 146 places, 147 transitions, 312 flow. Second operand 3 states and 354 transitions. [2024-10-31 22:06:59,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 120 transitions, 294 flow [2024-10-31 22:06:59,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 120 transitions, 292 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:59,471 INFO L231 Difference]: Finished difference. Result has 129 places, 119 transitions, 258 flow [2024-10-31 22:06:59,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=129, PETRI_TRANSITIONS=119} [2024-10-31 22:06:59,474 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, -17 predicate places. [2024-10-31 22:06:59,475 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 119 transitions, 258 flow [2024-10-31 22:06:59,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:59,475 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] [2024-10-31 22:06:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:59,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:06:59,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash 614486086, now seen corresponding path program 1 times [2024-10-31 22:06:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492637494] [2024-10-31 22:06:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:59,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:59,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492637494] [2024-10-31 22:06:59,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492637494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:59,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:59,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945230980] [2024-10-31 22:06:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:59,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:59,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2024-10-31 22:06:59,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 119 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:59,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2024-10-31 22:06:59,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:59,920 INFO L124 PetriNetUnfolderBase]: 289/1758 cut-off events. [2024-10-31 22:06:59,920 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-10-31 22:06:59,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2411 conditions, 1758 events. 289/1758 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 14731 event pairs, 98 based on Foata normal form. 0/1537 useless extension candidates. Maximal degree in co-relation 2384. Up to 301 conditions per place. [2024-10-31 22:06:59,939 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 24 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2024-10-31 22:06:59,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 362 flow [2024-10-31 22:06:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-10-31 22:06:59,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2024-10-31 22:06:59,941 INFO L175 Difference]: Start difference. First operand has 129 places, 119 transitions, 258 flow. Second operand 3 states and 351 transitions. [2024-10-31 22:06:59,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 362 flow [2024-10-31 22:06:59,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:59,944 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 332 flow [2024-10-31 22:06:59,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2024-10-31 22:06:59,946 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, -16 predicate places. [2024-10-31 22:06:59,946 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 332 flow [2024-10-31 22:06:59,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:59,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:59,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:06:59,947 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:06:59,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:59,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2110625896, now seen corresponding path program 1 times [2024-10-31 22:06:59,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:59,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232237475] [2024-10-31 22:06:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:59,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232237475] [2024-10-31 22:06:59,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232237475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:59,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811095138] [2024-10-31 22:06:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:59,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:00,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 147 [2024-10-31 22:07:00,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:00,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:00,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 147 [2024-10-31 22:07:00,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:00,962 INFO L124 PetriNetUnfolderBase]: 938/4557 cut-off events. [2024-10-31 22:07:00,962 INFO L125 PetriNetUnfolderBase]: For 1290/1382 co-relation queries the response was YES. [2024-10-31 22:07:00,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7694 conditions, 4557 events. 938/4557 cut-off events. For 1290/1382 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 49908 event pairs, 236 based on Foata normal form. 1/4085 useless extension candidates. Maximal degree in co-relation 7576. Up to 972 conditions per place. [2024-10-31 22:07:01,007 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 29 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2024-10-31 22:07:01,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 145 transitions, 470 flow [2024-10-31 22:07:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2024-10-31 22:07:01,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.800453514739229 [2024-10-31 22:07:01,009 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 332 flow. Second operand 3 states and 353 transitions. [2024-10-31 22:07:01,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 145 transitions, 470 flow [2024-10-31 22:07:01,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 145 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:01,021 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 392 flow [2024-10-31 22:07:01,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=132, PETRI_TRANSITIONS=137} [2024-10-31 22:07:01,023 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, -14 predicate places. [2024-10-31 22:07:01,023 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 392 flow [2024-10-31 22:07:01,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:01,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:01,024 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:01,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:07:01,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:07:01,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 155058189, now seen corresponding path program 1 times [2024-10-31 22:07:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:01,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543240788] [2024-10-31 22:07:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:01,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:01,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:01,068 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:07:01,068 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-10-31 22:07:01,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-10-31 22:07:01,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-10-31 22:07:01,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-10-31 22:07:01,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-10-31 22:07:01,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-10-31 22:07:01,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-10-31 22:07:01,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:07:01,072 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:07:01,133 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-10-31 22:07:01,133 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:07:01,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:07:01 BasicIcfg [2024-10-31 22:07:01,141 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:07:01,142 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:01,142 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:01,142 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:01,142 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:56" (3/4) ... [2024-10-31 22:07:01,145 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:07:01,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:01,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:01,216 INFO L158 Benchmark]: Toolchain (without parser) took 5722.22ms. Allocated memory was 163.6MB in the beginning and 272.6MB in the end (delta: 109.1MB). Free memory was 123.4MB in the beginning and 134.2MB in the end (delta: -10.8MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,216 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 163.6MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:01,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.34ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 101.5MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.20ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,217 INFO L158 Benchmark]: Boogie Preprocessor took 45.85ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:01,217 INFO L158 Benchmark]: RCFGBuilder took 438.41ms. Allocated memory is still 163.6MB. Free memory was 98.2MB in the beginning and 81.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,217 INFO L158 Benchmark]: TraceAbstraction took 4375.26ms. Allocated memory was 163.6MB in the beginning and 272.6MB in the end (delta: 109.1MB). Free memory was 81.5MB in the beginning and 142.6MB in the end (delta: -61.1MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,218 INFO L158 Benchmark]: Witness Printer took 73.78ms. Allocated memory is still 272.6MB. Free memory was 142.6MB in the beginning and 134.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:07:01,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 163.6MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.34ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 101.5MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.20ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.85ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 438.41ms. Allocated memory is still 163.6MB. Free memory was 98.2MB in the beginning and 81.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4375.26ms. Allocated memory was 163.6MB in the beginning and 272.6MB in the end (delta: 109.1MB). Free memory was 81.5MB in the beginning and 142.6MB in the end (delta: -61.1MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Witness Printer took 73.78ms. Allocated memory is still 272.6MB. Free memory was 142.6MB in the beginning and 134.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 711]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int s; VAL [s=0] [L698] 0 volatile int t; VAL [s=0, t=0] [L716] 0 pthread_t t; VAL [s=0, t=0] [L717] 0 int i, n; VAL [s=0, t=0] [L718] 0 s = 0 VAL [s=0, t=0] [L719] 0 n = __VERIFIER_nondet_int() VAL [n=2, s=0, t=0] [L720] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, s=0, t=0] [L720] RET 0 assume_abort_if_not(n > 0) [L721] 0 i = 0 VAL [i=0, n=2, s=0, t=0] [L721] COND TRUE 0 i < n VAL [i=0, n=2, s=0, t=0] [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=0, n=2, s=0, t=-1, t=0] [L721] 0 i++ VAL [i=1, n=2, s=0, t=-1, t=0] [L721] COND TRUE 0 i < n VAL [i=1, n=2, s=0, t=-1, t=0] [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=1, n=2, s=0, t=0, t=0] [L710] CALL 2 inct() [L710] CALL 1 inct() [L701] 1 t++ VAL [s=0, t=1] [L710] RET 1 inct() [L711] 1 s < t VAL [\old(arg)={0:0}, arg={0:0}, s=0, t=1] [L701] 2 t++ VAL [s=0, t=2] [L711] 1 s < t VAL [\old(arg)={0:0}, arg={0:0}, s=0, t=2] Now there is a data race on ~t~0 between C: t++ [701] and C: s < t [711] - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 140 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 21 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 171 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 13 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=392occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:07:01,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_982d7a91-14af-4716-8c9e-2a32723b1f6e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE