./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:00,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:00,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:58:00,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:00,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:00,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:00,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:00,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:00,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:00,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:00,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:00,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:00,165 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:00,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:00,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:00,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:58:00,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:00,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:58:00,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:00,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:00,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:00,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:00,172 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:58:00,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:00,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:58:00,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:00,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:00,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:00,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:00,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:00,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:00,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:00,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:00,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:00,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:00,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:00,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:00,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:00,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:00,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:00,182 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:00,183 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_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2023-11-06 21:58:00,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:00,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:00,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:00,537 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:00,537 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:00,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread/lazy01.i [2023-11-06 21:58:03,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:04,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:04,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/sv-benchmarks/c/pthread/lazy01.i [2023-11-06 21:58:04,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/data/f55d87efc/ceae50173bbe4a8386610cc31f5b1eb2/FLAG78520ac9b [2023-11-06 21:58:04,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/data/f55d87efc/ceae50173bbe4a8386610cc31f5b1eb2 [2023-11-06 21:58:04,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:04,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:04,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:04,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:04,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:04,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ef371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04, skipping insertion in model container [2023-11-06 21:58:04,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:05,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:05,087 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:05,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:05,218 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:05,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05 WrapperNode [2023-11-06 21:58:05,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:05,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:05,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:05,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:05,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,291 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2023-11-06 21:58:05,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:05,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:05,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:05,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:05,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:05,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:05,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:05,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:05,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (1/1) ... [2023-11-06 21:58:05,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:05,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:05,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:05,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:58:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:58:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:58:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:58:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:58:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:58:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:58:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:58:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:05,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:58:05,661 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:05,664 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:05,984 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:05,999 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:06,001 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:58:06,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:06 BoogieIcfgContainer [2023-11-06 21:58:06,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:06,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:06,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:06,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:06,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:04" (1/3) ... [2023-11-06 21:58:06,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1b73ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:06, skipping insertion in model container [2023-11-06 21:58:06,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:05" (2/3) ... [2023-11-06 21:58:06,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1b73ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:06, skipping insertion in model container [2023-11-06 21:58:06,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:06" (3/3) ... [2023-11-06 21:58:06,024 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-11-06 21:58:06,037 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:58:06,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:06,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 21:58:06,052 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:58:06,173 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:58:06,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 277 flow [2023-11-06 21:58:06,359 INFO L124 PetriNetUnfolderBase]: 2/125 cut-off events. [2023-11-06 21:58:06,360 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:58:06,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 172 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-11-06 21:58:06,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 128 transitions, 277 flow [2023-11-06 21:58:06,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 241 flow [2023-11-06 21:58:06,381 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:58:06,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 241 flow [2023-11-06 21:58:06,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 241 flow [2023-11-06 21:58:06,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 241 flow [2023-11-06 21:58:06,448 INFO L124 PetriNetUnfolderBase]: 2/113 cut-off events. [2023-11-06 21:58:06,448 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:58:06,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 113 events. 2/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 172 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-11-06 21:58:06,455 INFO L119 LiptonReduction]: Number of co-enabled transitions 4068 [2023-11-06 21:58:11,389 INFO L134 LiptonReduction]: Checked pairs total: 12356 [2023-11-06 21:58:11,395 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-11-06 21:58:11,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:11,445 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@31097c64, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:11,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-06 21:58:11,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:58:11,453 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 21:58:11,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:11,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:11,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:58:11,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:58:11,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:11,464 INFO L85 PathProgramCache]: Analyzing trace with hash 414116772, now seen corresponding path program 1 times [2023-11-06 21:58:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:11,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846462205] [2023-11-06 21:58:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:11,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:11,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:11,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846462205] [2023-11-06 21:58:11,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846462205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:11,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:11,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297627509] [2023-11-06 21:58:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:11,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:11,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:11,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 216 [2023-11-06 21:58:11,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2023-11-06 21:58:11,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:11,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 216 [2023-11-06 21:58:11,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:12,598 INFO L124 PetriNetUnfolderBase]: 1882/3285 cut-off events. [2023-11-06 21:58:12,599 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2023-11-06 21:58:12,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6443 conditions, 3285 events. 1882/3285 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 20310 event pairs, 809 based on Foata normal form. 0/3051 useless extension candidates. Maximal degree in co-relation 5552. Up to 1555 conditions per place. [2023-11-06 21:58:12,638 INFO L140 encePairwiseOnDemand]: 201/216 looper letters, 43 selfloop transitions, 8 changer transitions 2/60 dead transitions. [2023-11-06 21:58:12,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 60 transitions, 253 flow [2023-11-06 21:58:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-11-06 21:58:12,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2023-11-06 21:58:12,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-11-06 21:58:12,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-11-06 21:58:12,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:12,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-11-06 21:58:12,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-11-06 21:58:12,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:12,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:12,680 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 97 flow. Second operand 3 states and 388 transitions. [2023-11-06 21:58:12,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 60 transitions, 253 flow [2023-11-06 21:58:12,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 237 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:58:12,694 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 148 flow [2023-11-06 21:58:12,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2023-11-06 21:58:12,701 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2023-11-06 21:58:12,701 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 148 flow [2023-11-06 21:58:12,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2023-11-06 21:58:12,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:12,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:12,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:12,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:58:12,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:12,704 INFO L85 PathProgramCache]: Analyzing trace with hash 181668527, now seen corresponding path program 1 times [2023-11-06 21:58:12,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:12,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092750274] [2023-11-06 21:58:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:12,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:12,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:12,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092750274] [2023-11-06 21:58:12,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092750274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:12,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:12,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:12,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46868548] [2023-11-06 21:58:12,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:12,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:12,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:12,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:12,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:12,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 216 [2023-11-06 21:58:12,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-11-06 21:58:12,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:12,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 216 [2023-11-06 21:58:12,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:13,442 INFO L124 PetriNetUnfolderBase]: 1620/3114 cut-off events. [2023-11-06 21:58:13,442 INFO L125 PetriNetUnfolderBase]: For 1447/1542 co-relation queries the response was YES. [2023-11-06 21:58:13,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7247 conditions, 3114 events. 1620/3114 cut-off events. For 1447/1542 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 21725 event pairs, 882 based on Foata normal form. 14/2810 useless extension candidates. Maximal degree in co-relation 3601. Up to 1883 conditions per place. [2023-11-06 21:58:13,475 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 36 selfloop transitions, 10 changer transitions 0/61 dead transitions. [2023-11-06 21:58:13,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 295 flow [2023-11-06 21:58:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-11-06 21:58:13,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2023-11-06 21:58:13,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-11-06 21:58:13,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-11-06 21:58:13,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:13,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-11-06 21:58:13,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:13,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:13,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:13,497 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 148 flow. Second operand 3 states and 369 transitions. [2023-11-06 21:58:13,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 295 flow [2023-11-06 21:58:13,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:58:13,509 INFO L231 Difference]: Finished difference. Result has 47 places, 52 transitions, 218 flow [2023-11-06 21:58:13,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=52} [2023-11-06 21:58:13,512 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-11-06 21:58:13,512 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 52 transitions, 218 flow [2023-11-06 21:58:13,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-11-06 21:58:13,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:13,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:13,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:13,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:58:13,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash 835807128, now seen corresponding path program 1 times [2023-11-06 21:58:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:13,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062114068] [2023-11-06 21:58:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:13,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:13,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062114068] [2023-11-06 21:58:13,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062114068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:13,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:13,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:13,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765250601] [2023-11-06 21:58:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:13,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:13,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:13,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:13,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:13,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 216 [2023-11-06 21:58:13,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 52 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-06 21:58:13,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:13,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 216 [2023-11-06 21:58:13,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:14,361 INFO L124 PetriNetUnfolderBase]: 2407/4293 cut-off events. [2023-11-06 21:58:14,362 INFO L125 PetriNetUnfolderBase]: For 3380/3582 co-relation queries the response was YES. [2023-11-06 21:58:14,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11287 conditions, 4293 events. 2407/4293 cut-off events. For 3380/3582 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 28815 event pairs, 1089 based on Foata normal form. 14/3865 useless extension candidates. Maximal degree in co-relation 6091. Up to 2656 conditions per place. [2023-11-06 21:58:14,408 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 46 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2023-11-06 21:58:14,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 423 flow [2023-11-06 21:58:14,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-11-06 21:58:14,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5725308641975309 [2023-11-06 21:58:14,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-11-06 21:58:14,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-11-06 21:58:14,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:14,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-11-06 21:58:14,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-11-06 21:58:14,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:14,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:14,418 INFO L175 Difference]: Start difference. First operand has 47 places, 52 transitions, 218 flow. Second operand 3 states and 371 transitions. [2023-11-06 21:58:14,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 423 flow [2023-11-06 21:58:14,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:58:14,446 INFO L231 Difference]: Finished difference. Result has 49 places, 61 transitions, 312 flow [2023-11-06 21:58:14,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=49, PETRI_TRANSITIONS=61} [2023-11-06 21:58:14,448 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-11-06 21:58:14,453 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 61 transitions, 312 flow [2023-11-06 21:58:14,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-06 21:58:14,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:14,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:14,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:14,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:58:14,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash 267523133, now seen corresponding path program 1 times [2023-11-06 21:58:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:14,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772367017] [2023-11-06 21:58:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:14,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:14,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772367017] [2023-11-06 21:58:14,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772367017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:14,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:14,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105413685] [2023-11-06 21:58:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:14,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:14,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 216 [2023-11-06 21:58:14,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 61 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-11-06 21:58:14,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:14,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 216 [2023-11-06 21:58:14,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:14,862 INFO L124 PetriNetUnfolderBase]: 140/449 cut-off events. [2023-11-06 21:58:14,863 INFO L125 PetriNetUnfolderBase]: For 354/354 co-relation queries the response was YES. [2023-11-06 21:58:14,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 449 events. 140/449 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2219 event pairs, 34 based on Foata normal form. 96/545 useless extension candidates. Maximal degree in co-relation 595. Up to 244 conditions per place. [2023-11-06 21:58:14,866 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-11-06 21:58:14,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 215 flow [2023-11-06 21:58:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:14,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-11-06 21:58:14,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2023-11-06 21:58:14,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-11-06 21:58:14,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-11-06 21:58:14,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:14,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-11-06 21:58:14,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2023-11-06 21:58:14,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:14,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2023-11-06 21:58:14,876 INFO L175 Difference]: Start difference. First operand has 49 places, 61 transitions, 312 flow. Second operand 3 states and 368 transitions. [2023-11-06 21:58:14,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 215 flow [2023-11-06 21:58:14,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 177 flow, removed 13 selfloop flow, removed 6 redundant places. [2023-11-06 21:58:14,879 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-11-06 21:58:14,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-11-06 21:58:14,880 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2023-11-06 21:58:14,881 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-11-06 21:58:14,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-11-06 21:58:14,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-11-06 21:58:14,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-11-06 21:58:14,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-11-06 21:58:14,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-11-06 21:58:14,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-11-06 21:58:14,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-11-06 21:58:14,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-11-06 21:58:14,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-11-06 21:58:14,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-11-06 21:58:14,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-11-06 21:58:14,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2023-11-06 21:58:14,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-11-06 21:58:14,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-11-06 21:58:14,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-11-06 21:58:14,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-11-06 21:58:14,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-11-06 21:58:14,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:58:14,890 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 21:58:14,897 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:58:14,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:58:14,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:14 BasicIcfg [2023-11-06 21:58:14,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:58:14,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:58:14,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:58:14,904 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:58:14,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:06" (3/4) ... [2023-11-06 21:58:14,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:58:14,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 21:58:14,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 21:58:14,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-06 21:58:14,918 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-06 21:58:14,919 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:58:14,919 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:58:14,919 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:58:14,981 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:58:14,981 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:58:14,982 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:58:14,982 INFO L158 Benchmark]: Toolchain (without parser) took 10603.54ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 117.7MB in the beginning and 131.2MB in the end (delta: -13.5MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,983 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:14,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.54ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 97.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.25ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,985 INFO L158 Benchmark]: Boogie Preprocessor took 81.85ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,985 INFO L158 Benchmark]: RCFGBuilder took 631.63ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 77.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,986 INFO L158 Benchmark]: TraceAbstraction took 8891.61ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 76.6MB in the beginning and 134.4MB in the end (delta: -57.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,986 INFO L158 Benchmark]: Witness Printer took 78.31ms. Allocated memory is still 243.3MB. Free memory was 134.4MB in the beginning and 131.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:58:14,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 835.54ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 97.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.25ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.85ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 631.63ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 77.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8891.61ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 76.6MB in the beginning and 134.4MB in the end (delta: -57.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 78.31ms. Allocated memory is still 243.3MB. Free memory was 134.4MB in the beginning and 131.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 121 PlacesBefore, 50 PlacesAfterwards, 113 TransitionsBefore, 41 TransitionsAfterwards, 4068 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 12356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5621, independent: 5311, independent conditional: 0, independent unconditional: 5311, dependent: 310, dependent conditional: 0, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2226, independent: 2164, independent conditional: 0, independent unconditional: 2164, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5621, independent: 3147, independent conditional: 0, independent unconditional: 3147, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 2226, unknown conditional: 0, unknown unconditional: 2226] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 287, Positive conditional cache size: 0, Positive unconditional cache size: 287, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 181 locations, 16 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: 8.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 320 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 16 mSDtfsCounter, 320 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:58:15,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aea720-107e-4a1e-a9d1-92ffe3fafa3d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE