./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:44,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:44,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:10:44,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:44,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:44,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:44,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:44,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:44,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:44,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:44,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:44,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:44,381 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:44,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:44,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:44,385 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:10:44,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:44,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:10:44,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:44,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:44,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:44,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:44,388 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:10:44,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:44,389 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:10:44,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:44,391 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:44,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:44,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:44,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:44,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:44,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:44,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:44,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:44,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:44,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:44,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:44,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:44,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:44,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:44,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:44,397 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_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2023-11-21 22:10:44,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:44,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:44,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:44,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:44,768 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:44,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-11-21 22:10:47,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:48,241 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:48,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-11-21 22:10:48,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/data/d07cd82b1/1e46a466ba0a4fe585f2086ef7155411/FLAG79bf0d54b [2023-11-21 22:10:48,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/data/d07cd82b1/1e46a466ba0a4fe585f2086ef7155411 [2023-11-21 22:10:48,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:48,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:48,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:48,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:48,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:48,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:48" (1/1) ... [2023-11-21 22:10:48,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1413bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:48, skipping insertion in model container [2023-11-21 22:10:48,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:48" (1/1) ... [2023-11-21 22:10:48,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:48,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:48,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:48,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:49,009 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:49,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49 WrapperNode [2023-11-21 22:10:49,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:49,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:49,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:49,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:49,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,084 INFO L138 Inliner]: procedures = 164, calls = 65, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 151 [2023-11-21 22:10:49,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:49,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:49,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:49,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:49,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:49,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:49,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:49,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:49,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (1/1) ... [2023-11-21 22:10:49,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:49,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:49,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:10:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-21 22:10:49,215 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-21 22:10:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:10:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:10:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:10:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:10:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 22:10:49,217 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 22:10:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:10:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:10:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:10:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:49,222 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:10:49,383 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:49,385 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:10:49,894 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:49,969 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:49,970 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:10:49,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:49 BoogieIcfgContainer [2023-11-21 22:10:49,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:49,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:10:49,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:10:49,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:10:49,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:10:48" (1/3) ... [2023-11-21 22:10:49,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7b84a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:49, skipping insertion in model container [2023-11-21 22:10:49,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:49" (2/3) ... [2023-11-21 22:10:49,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7b84a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:49, skipping insertion in model container [2023-11-21 22:10:49,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:49" (3/3) ... [2023-11-21 22:10:49,983 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-11-21 22:10:49,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:10:50,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:10:50,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-21 22:10:50,005 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:10:50,090 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:10:50,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 239 transitions, 492 flow [2023-11-21 22:10:50,257 INFO L124 PetriNetUnfolderBase]: 8/237 cut-off events. [2023-11-21 22:10:50,257 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:10:50,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 237 events. 8/237 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-11-21 22:10:50,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 239 transitions, 492 flow [2023-11-21 22:10:50,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 227 transitions, 463 flow [2023-11-21 22:10:50,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:10:50,310 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=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;@35f8a44b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:10:50,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-21 22:10:50,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:10:50,325 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2023-11-21 22:10:50,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:10:50,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:50,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:50,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:10:50,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1830062491, now seen corresponding path program 1 times [2023-11-21 22:10:50,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:50,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11245360] [2023-11-21 22:10:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:50,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:10:50,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:50,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11245360] [2023-11-21 22:10:50,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11245360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:50,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:50,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:50,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590628102] [2023-11-21 22:10:50,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:50,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:50,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 239 [2023-11-21 22:10:50,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 227 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 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) [2023-11-21 22:10:50,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:50,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 239 [2023-11-21 22:10:50,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:54,144 INFO L124 PetriNetUnfolderBase]: 4355/15304 cut-off events. [2023-11-21 22:10:54,146 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-21 22:10:54,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22301 conditions, 15304 events. 4355/15304 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 169102 event pairs, 1372 based on Foata normal form. 971/15016 useless extension candidates. Maximal degree in co-relation 22154. Up to 4457 conditions per place. [2023-11-21 22:10:54,317 INFO L140 encePairwiseOnDemand]: 216/239 looper letters, 66 selfloop transitions, 10 changer transitions 0/239 dead transitions. [2023-11-21 22:10:54,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 239 transitions, 645 flow [2023-11-21 22:10:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:54,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-11-21 22:10:54,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8967921896792189 [2023-11-21 22:10:54,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-11-21 22:10:54,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-11-21 22:10:54,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:54,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-11-21 22:10:54,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 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) [2023-11-21 22:10:54,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:10:54,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:10:54,373 INFO L175 Difference]: Start difference. First operand has 226 places, 227 transitions, 463 flow. Second operand 3 states and 643 transitions. [2023-11-21 22:10:54,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 239 transitions, 645 flow [2023-11-21 22:10:54,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 239 transitions, 637 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:10:54,395 INFO L231 Difference]: Finished difference. Result has 213 places, 213 transitions, 492 flow [2023-11-21 22:10:54,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=213, PETRI_TRANSITIONS=213} [2023-11-21 22:10:54,403 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -13 predicate places. [2023-11-21 22:10:54,403 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 213 transitions, 492 flow [2023-11-21 22:10:54,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 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) [2023-11-21 22:10:54,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:54,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:10:54,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:10:54,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:54,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1224620823, now seen corresponding path program 1 times [2023-11-21 22:10:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:54,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021910008] [2023-11-21 22:10:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:10:54,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:54,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021910008] [2023-11-21 22:10:54,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021910008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:54,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:54,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:54,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459499259] [2023-11-21 22:10:54,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:54,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:54,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 239 [2023-11-21 22:10:54,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 213 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2023-11-21 22:10:54,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:54,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 239 [2023-11-21 22:10:54,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:57,678 INFO L124 PetriNetUnfolderBase]: 4773/15542 cut-off events. [2023-11-21 22:10:57,679 INFO L125 PetriNetUnfolderBase]: For 2294/2322 co-relation queries the response was YES. [2023-11-21 22:10:57,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25224 conditions, 15542 events. 4773/15542 cut-off events. For 2294/2322 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 170720 event pairs, 3453 based on Foata normal form. 28/14083 useless extension candidates. Maximal degree in co-relation 25066. Up to 6392 conditions per place. [2023-11-21 22:10:57,813 INFO L140 encePairwiseOnDemand]: 232/239 looper letters, 61 selfloop transitions, 8 changer transitions 0/239 dead transitions. [2023-11-21 22:10:57,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 239 transitions, 700 flow [2023-11-21 22:10:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 627 transitions. [2023-11-21 22:10:57,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8744769874476988 [2023-11-21 22:10:57,818 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 627 transitions. [2023-11-21 22:10:57,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 627 transitions. [2023-11-21 22:10:57,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:57,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 627 transitions. [2023-11-21 22:10:57,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2023-11-21 22:10:57,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:10:57,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:10:57,828 INFO L175 Difference]: Start difference. First operand has 213 places, 213 transitions, 492 flow. Second operand 3 states and 627 transitions. [2023-11-21 22:10:57,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 239 transitions, 700 flow [2023-11-21 22:10:57,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 239 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:57,848 INFO L231 Difference]: Finished difference. Result has 215 places, 220 transitions, 544 flow [2023-11-21 22:10:57,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=215, PETRI_TRANSITIONS=220} [2023-11-21 22:10:57,850 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -11 predicate places. [2023-11-21 22:10:57,850 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 220 transitions, 544 flow [2023-11-21 22:10:57,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2023-11-21 22:10:57,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:57,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:57,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:10:57,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:10:57,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1562483712, now seen corresponding path program 1 times [2023-11-21 22:10:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:57,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112417726] [2023-11-21 22:10:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:57,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:57,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:10:57,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112417726] [2023-11-21 22:10:57,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112417726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:57,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:57,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936391657] [2023-11-21 22:10:57,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:57,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:57,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:57,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:57,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:57,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 239 [2023-11-21 22:10:57,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 220 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-21 22:10:57,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:57,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 239 [2023-11-21 22:10:57,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:02,119 INFO L124 PetriNetUnfolderBase]: 6874/24855 cut-off events. [2023-11-21 22:11:02,119 INFO L125 PetriNetUnfolderBase]: For 779/835 co-relation queries the response was YES. [2023-11-21 22:11:02,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37610 conditions, 24855 events. 6874/24855 cut-off events. For 779/835 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 304825 event pairs, 2705 based on Foata normal form. 14/22835 useless extension candidates. Maximal degree in co-relation 37485. Up to 5723 conditions per place. [2023-11-21 22:11:02,305 INFO L140 encePairwiseOnDemand]: 230/239 looper letters, 59 selfloop transitions, 6 changer transitions 0/247 dead transitions. [2023-11-21 22:11:02,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 247 transitions, 729 flow [2023-11-21 22:11:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-11-21 22:11:02,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8814504881450488 [2023-11-21 22:11:02,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-11-21 22:11:02,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-11-21 22:11:02,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:02,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-11-21 22:11:02,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2023-11-21 22:11:02,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:02,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:02,320 INFO L175 Difference]: Start difference. First operand has 215 places, 220 transitions, 544 flow. Second operand 3 states and 632 transitions. [2023-11-21 22:11:02,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 247 transitions, 729 flow [2023-11-21 22:11:02,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 247 transitions, 713 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:02,333 INFO L231 Difference]: Finished difference. Result has 215 places, 222 transitions, 566 flow [2023-11-21 22:11:02,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=215, PETRI_TRANSITIONS=222} [2023-11-21 22:11:02,335 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -11 predicate places. [2023-11-21 22:11:02,336 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 222 transitions, 566 flow [2023-11-21 22:11:02,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-21 22:11:02,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:02,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:02,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:02,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:02,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1094670665, now seen corresponding path program 1 times [2023-11-21 22:11:02,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:02,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55132570] [2023-11-21 22:11:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:02,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:02,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:02,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55132570] [2023-11-21 22:11:02,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55132570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759857140] [2023-11-21 22:11:02,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:02,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:02,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 239 [2023-11-21 22:11:02,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 222 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2023-11-21 22:11:02,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:02,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 239 [2023-11-21 22:11:02,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:06,484 INFO L124 PetriNetUnfolderBase]: 7740/26422 cut-off events. [2023-11-21 22:11:06,484 INFO L125 PetriNetUnfolderBase]: For 3856/3962 co-relation queries the response was YES. [2023-11-21 22:11:06,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43152 conditions, 26422 events. 7740/26422 cut-off events. For 3856/3962 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 324741 event pairs, 5376 based on Foata normal form. 14/24084 useless extension candidates. Maximal degree in co-relation 43028. Up to 10216 conditions per place. [2023-11-21 22:11:06,699 INFO L140 encePairwiseOnDemand]: 234/239 looper letters, 57 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2023-11-21 22:11:06,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 244 transitions, 737 flow [2023-11-21 22:11:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2023-11-21 22:11:06,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8772663877266388 [2023-11-21 22:11:06,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2023-11-21 22:11:06,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2023-11-21 22:11:06,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:06,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2023-11-21 22:11:06,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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) [2023-11-21 22:11:06,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:06,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:06,713 INFO L175 Difference]: Start difference. First operand has 215 places, 222 transitions, 566 flow. Second operand 3 states and 629 transitions. [2023-11-21 22:11:06,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 244 transitions, 737 flow [2023-11-21 22:11:06,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 244 transitions, 723 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:06,728 INFO L231 Difference]: Finished difference. Result has 217 places, 225 transitions, 586 flow [2023-11-21 22:11:06,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=217, PETRI_TRANSITIONS=225} [2023-11-21 22:11:06,730 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -9 predicate places. [2023-11-21 22:11:06,731 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 225 transitions, 586 flow [2023-11-21 22:11:06,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2023-11-21 22:11:06,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:06,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:06,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:06,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:06,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:06,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1336278643, now seen corresponding path program 1 times [2023-11-21 22:11:06,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:06,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195112076] [2023-11-21 22:11:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:06,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:07,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:07,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195112076] [2023-11-21 22:11:07,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195112076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:07,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:07,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:07,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078343702] [2023-11-21 22:11:07,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:07,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:07,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:07,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:07,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:07,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 239 [2023-11-21 22:11:07,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 225 transitions, 586 flow. Second operand has 5 states, 5 states have (on average 198.6) internal successors, (993), 5 states have internal predecessors, (993), 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) [2023-11-21 22:11:07,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:07,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 239 [2023-11-21 22:11:07,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:09,496 INFO L124 PetriNetUnfolderBase]: 1980/12091 cut-off events. [2023-11-21 22:11:09,497 INFO L125 PetriNetUnfolderBase]: For 425/498 co-relation queries the response was YES. [2023-11-21 22:11:09,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17382 conditions, 12091 events. 1980/12091 cut-off events. For 425/498 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 147524 event pairs, 608 based on Foata normal form. 109/11209 useless extension candidates. Maximal degree in co-relation 17255. Up to 1748 conditions per place. [2023-11-21 22:11:09,584 INFO L140 encePairwiseOnDemand]: 231/239 looper letters, 44 selfloop transitions, 8 changer transitions 0/248 dead transitions. [2023-11-21 22:11:09,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 248 transitions, 738 flow [2023-11-21 22:11:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1039 transitions. [2023-11-21 22:11:09,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8694560669456067 [2023-11-21 22:11:09,598 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1039 transitions. [2023-11-21 22:11:09,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1039 transitions. [2023-11-21 22:11:09,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:09,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1039 transitions. [2023-11-21 22:11:09,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.8) internal successors, (1039), 5 states have internal predecessors, (1039), 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) [2023-11-21 22:11:09,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:09,610 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:09,610 INFO L175 Difference]: Start difference. First operand has 217 places, 225 transitions, 586 flow. Second operand 5 states and 1039 transitions. [2023-11-21 22:11:09,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 248 transitions, 738 flow [2023-11-21 22:11:09,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 248 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:09,621 INFO L231 Difference]: Finished difference. Result has 220 places, 229 transitions, 616 flow [2023-11-21 22:11:09,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=616, PETRI_PLACES=220, PETRI_TRANSITIONS=229} [2023-11-21 22:11:09,625 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -6 predicate places. [2023-11-21 22:11:09,625 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 229 transitions, 616 flow [2023-11-21 22:11:09,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 198.6) internal successors, (993), 5 states have internal predecessors, (993), 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) [2023-11-21 22:11:09,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:09,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:09,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:09,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:09,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:09,629 INFO L85 PathProgramCache]: Analyzing trace with hash 519239887, now seen corresponding path program 1 times [2023-11-21 22:11:09,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:09,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301862288] [2023-11-21 22:11:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:09,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:09,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:09,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301862288] [2023-11-21 22:11:09,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301862288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:09,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:09,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:09,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345073791] [2023-11-21 22:11:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:09,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:09,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:09,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 239 [2023-11-21 22:11:09,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 229 transitions, 616 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2023-11-21 22:11:09,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:09,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 239 [2023-11-21 22:11:09,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:12,455 INFO L124 PetriNetUnfolderBase]: 3946/16201 cut-off events. [2023-11-21 22:11:12,455 INFO L125 PetriNetUnfolderBase]: For 3494/3504 co-relation queries the response was YES. [2023-11-21 22:11:12,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28326 conditions, 16201 events. 3946/16201 cut-off events. For 3494/3504 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 193929 event pairs, 2498 based on Foata normal form. 2/14967 useless extension candidates. Maximal degree in co-relation 28161. Up to 6071 conditions per place. [2023-11-21 22:11:12,546 INFO L140 encePairwiseOnDemand]: 232/239 looper letters, 72 selfloop transitions, 8 changer transitions 0/257 dead transitions. [2023-11-21 22:11:12,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 257 transitions, 870 flow [2023-11-21 22:11:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 627 transitions. [2023-11-21 22:11:12,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8744769874476988 [2023-11-21 22:11:12,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 627 transitions. [2023-11-21 22:11:12,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 627 transitions. [2023-11-21 22:11:12,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:12,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 627 transitions. [2023-11-21 22:11:12,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2023-11-21 22:11:12,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:12,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:12,557 INFO L175 Difference]: Start difference. First operand has 220 places, 229 transitions, 616 flow. Second operand 3 states and 627 transitions. [2023-11-21 22:11:12,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 257 transitions, 870 flow [2023-11-21 22:11:12,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 257 transitions, 867 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:12,566 INFO L231 Difference]: Finished difference. Result has 222 places, 236 transitions, 695 flow [2023-11-21 22:11:12,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=222, PETRI_TRANSITIONS=236} [2023-11-21 22:11:12,568 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -4 predicate places. [2023-11-21 22:11:12,568 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 236 transitions, 695 flow [2023-11-21 22:11:12,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2023-11-21 22:11:12,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:12,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:12,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:12,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:12,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash 173362186, now seen corresponding path program 1 times [2023-11-21 22:11:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:12,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518082205] [2023-11-21 22:11:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:12,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518082205] [2023-11-21 22:11:12,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518082205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:12,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:12,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:12,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744911018] [2023-11-21 22:11:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:12,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:12,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:12,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:12,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:12,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 239 [2023-11-21 22:11:12,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 236 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2023-11-21 22:11:12,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:12,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 239 [2023-11-21 22:11:12,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:15,410 INFO L124 PetriNetUnfolderBase]: 3679/17254 cut-off events. [2023-11-21 22:11:15,410 INFO L125 PetriNetUnfolderBase]: For 3725/3847 co-relation queries the response was YES. [2023-11-21 22:11:15,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29510 conditions, 17254 events. 3679/17254 cut-off events. For 3725/3847 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 213682 event pairs, 2162 based on Foata normal form. 4/15689 useless extension candidates. Maximal degree in co-relation 29375. Up to 5227 conditions per place. [2023-11-21 22:11:15,517 INFO L140 encePairwiseOnDemand]: 234/239 looper letters, 64 selfloop transitions, 4 changer transitions 0/260 dead transitions. [2023-11-21 22:11:15,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 260 transitions, 903 flow [2023-11-21 22:11:15,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2023-11-21 22:11:15,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8772663877266388 [2023-11-21 22:11:15,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2023-11-21 22:11:15,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2023-11-21 22:11:15,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:15,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2023-11-21 22:11:15,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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) [2023-11-21 22:11:15,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:15,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-11-21 22:11:15,530 INFO L175 Difference]: Start difference. First operand has 222 places, 236 transitions, 695 flow. Second operand 3 states and 629 transitions. [2023-11-21 22:11:15,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 260 transitions, 903 flow [2023-11-21 22:11:15,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 260 transitions, 877 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:15,551 INFO L231 Difference]: Finished difference. Result has 224 places, 239 transitions, 703 flow [2023-11-21 22:11:15,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=224, PETRI_TRANSITIONS=239} [2023-11-21 22:11:15,552 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -2 predicate places. [2023-11-21 22:11:15,552 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 239 transitions, 703 flow [2023-11-21 22:11:15,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2023-11-21 22:11:15,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:15,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:15,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:11:15,554 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:15,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash -207689610, now seen corresponding path program 1 times [2023-11-21 22:11:15,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:15,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012533110] [2023-11-21 22:11:15,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:15,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:15,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:15,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012533110] [2023-11-21 22:11:15,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012533110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:15,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:15,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:15,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739532564] [2023-11-21 22:11:15,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:15,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:15,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:15,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:15,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 239 [2023-11-21 22:11:15,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 239 transitions, 703 flow. Second operand has 5 states, 5 states have (on average 199.6) internal successors, (998), 5 states have internal predecessors, (998), 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) [2023-11-21 22:11:15,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:15,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 239 [2023-11-21 22:11:15,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:17,497 INFO L124 PetriNetUnfolderBase]: 1363/9079 cut-off events. [2023-11-21 22:11:17,497 INFO L125 PetriNetUnfolderBase]: For 1584/1622 co-relation queries the response was YES. [2023-11-21 22:11:17,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14672 conditions, 9079 events. 1363/9079 cut-off events. For 1584/1622 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 104325 event pairs, 331 based on Foata normal form. 22/8525 useless extension candidates. Maximal degree in co-relation 14536. Up to 1357 conditions per place. [2023-11-21 22:11:17,575 INFO L140 encePairwiseOnDemand]: 231/239 looper letters, 47 selfloop transitions, 12 changer transitions 0/265 dead transitions. [2023-11-21 22:11:17,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 265 transitions, 897 flow [2023-11-21 22:11:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:17,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1039 transitions. [2023-11-21 22:11:17,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8694560669456067 [2023-11-21 22:11:17,581 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1039 transitions. [2023-11-21 22:11:17,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1039 transitions. [2023-11-21 22:11:17,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:17,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1039 transitions. [2023-11-21 22:11:17,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.8) internal successors, (1039), 5 states have internal predecessors, (1039), 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) [2023-11-21 22:11:17,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:17,591 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:17,592 INFO L175 Difference]: Start difference. First operand has 224 places, 239 transitions, 703 flow. Second operand 5 states and 1039 transitions. [2023-11-21 22:11:17,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 265 transitions, 897 flow [2023-11-21 22:11:17,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 265 transitions, 887 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:17,617 INFO L231 Difference]: Finished difference. Result has 227 places, 246 transitions, 772 flow [2023-11-21 22:11:17,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=772, PETRI_PLACES=227, PETRI_TRANSITIONS=246} [2023-11-21 22:11:17,619 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, 1 predicate places. [2023-11-21 22:11:17,619 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 246 transitions, 772 flow [2023-11-21 22:11:17,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.6) internal successors, (998), 5 states have internal predecessors, (998), 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) [2023-11-21 22:11:17,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:17,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:17,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:11:17,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -967864222, now seen corresponding path program 1 times [2023-11-21 22:11:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814455050] [2023-11-21 22:11:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:17,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814455050] [2023-11-21 22:11:17,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814455050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:17,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47341401] [2023-11-21 22:11:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:17,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:17,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 239 [2023-11-21 22:11:17,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 246 transitions, 772 flow. Second operand has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 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) [2023-11-21 22:11:17,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:17,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 239 [2023-11-21 22:11:17,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:19,045 INFO L124 PetriNetUnfolderBase]: 646/6796 cut-off events. [2023-11-21 22:11:19,046 INFO L125 PetriNetUnfolderBase]: For 2006/2015 co-relation queries the response was YES. [2023-11-21 22:11:19,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11389 conditions, 6796 events. 646/6796 cut-off events. For 2006/2015 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 72331 event pairs, 228 based on Foata normal form. 172/6703 useless extension candidates. Maximal degree in co-relation 11249. Up to 1009 conditions per place. [2023-11-21 22:11:19,089 INFO L140 encePairwiseOnDemand]: 219/239 looper letters, 41 selfloop transitions, 26 changer transitions 0/250 dead transitions. [2023-11-21 22:11:19,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 250 transitions, 929 flow [2023-11-21 22:11:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:19,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1040 transitions. [2023-11-21 22:11:19,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8702928870292888 [2023-11-21 22:11:19,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1040 transitions. [2023-11-21 22:11:19,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1040 transitions. [2023-11-21 22:11:19,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:19,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1040 transitions. [2023-11-21 22:11:19,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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) [2023-11-21 22:11:19,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:19,106 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:19,106 INFO L175 Difference]: Start difference. First operand has 227 places, 246 transitions, 772 flow. Second operand 5 states and 1040 transitions. [2023-11-21 22:11:19,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 250 transitions, 929 flow [2023-11-21 22:11:19,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 250 transitions, 888 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-11-21 22:11:19,126 INFO L231 Difference]: Finished difference. Result has 221 places, 239 transitions, 799 flow [2023-11-21 22:11:19,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=799, PETRI_PLACES=221, PETRI_TRANSITIONS=239} [2023-11-21 22:11:19,128 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -5 predicate places. [2023-11-21 22:11:19,128 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 239 transitions, 799 flow [2023-11-21 22:11:19,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 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) [2023-11-21 22:11:19,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:19,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:19,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:11:19,130 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:19,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1771587418, now seen corresponding path program 1 times [2023-11-21 22:11:19,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:19,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292359319] [2023-11-21 22:11:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292359319] [2023-11-21 22:11:19,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292359319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:19,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:19,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:19,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063609015] [2023-11-21 22:11:19,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:19,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:19,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:19,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:20,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 239 [2023-11-21 22:11:20,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 239 transitions, 799 flow. Second operand has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 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) [2023-11-21 22:11:20,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:20,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 239 [2023-11-21 22:11:20,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:21,884 INFO L124 PetriNetUnfolderBase]: 2655/9563 cut-off events. [2023-11-21 22:11:21,884 INFO L125 PetriNetUnfolderBase]: For 8142/8616 co-relation queries the response was YES. [2023-11-21 22:11:21,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22086 conditions, 9563 events. 2655/9563 cut-off events. For 8142/8616 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 97169 event pairs, 297 based on Foata normal form. 74/9217 useless extension candidates. Maximal degree in co-relation 21945. Up to 1805 conditions per place. [2023-11-21 22:11:21,931 INFO L140 encePairwiseOnDemand]: 234/239 looper letters, 161 selfloop transitions, 4 changer transitions 0/342 dead transitions. [2023-11-21 22:11:21,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 342 transitions, 1807 flow [2023-11-21 22:11:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1217 transitions. [2023-11-21 22:11:21,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8486750348675035 [2023-11-21 22:11:21,936 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1217 transitions. [2023-11-21 22:11:21,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1217 transitions. [2023-11-21 22:11:21,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:21,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1217 transitions. [2023-11-21 22:11:21,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 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) [2023-11-21 22:11:21,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-11-21 22:11:21,946 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-11-21 22:11:21,947 INFO L175 Difference]: Start difference. First operand has 221 places, 239 transitions, 799 flow. Second operand 6 states and 1217 transitions. [2023-11-21 22:11:21,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 342 transitions, 1807 flow [2023-11-21 22:11:21,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 342 transitions, 1804 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:21,960 INFO L231 Difference]: Finished difference. Result has 223 places, 238 transitions, 802 flow [2023-11-21 22:11:21,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=223, PETRI_TRANSITIONS=238} [2023-11-21 22:11:21,961 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -3 predicate places. [2023-11-21 22:11:21,962 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 238 transitions, 802 flow [2023-11-21 22:11:21,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 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) [2023-11-21 22:11:21,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:21,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:21,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:11:21,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:21,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash -805428111, now seen corresponding path program 1 times [2023-11-21 22:11:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832887326] [2023-11-21 22:11:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:21,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:22,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832887326] [2023-11-21 22:11:22,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832887326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:22,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:22,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:11:22,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020533273] [2023-11-21 22:11:22,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:22,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:22,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:22,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:22,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:22,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 239 [2023-11-21 22:11:22,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 238 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 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) [2023-11-21 22:11:22,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:22,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 239 [2023-11-21 22:11:22,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:23,355 INFO L124 PetriNetUnfolderBase]: 514/5777 cut-off events. [2023-11-21 22:11:23,355 INFO L125 PetriNetUnfolderBase]: For 2696/2822 co-relation queries the response was YES. [2023-11-21 22:11:23,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 5777 events. 514/5777 cut-off events. For 2696/2822 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 58509 event pairs, 180 based on Foata normal form. 24/5674 useless extension candidates. Maximal degree in co-relation 9790. Up to 779 conditions per place. [2023-11-21 22:11:23,375 INFO L140 encePairwiseOnDemand]: 219/239 looper letters, 51 selfloop transitions, 31 changer transitions 0/253 dead transitions. [2023-11-21 22:11:23,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 1067 flow [2023-11-21 22:11:23,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2023-11-21 22:11:23,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8686192468619247 [2023-11-21 22:11:23,381 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2023-11-21 22:11:23,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2023-11-21 22:11:23,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:23,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2023-11-21 22:11:23,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 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) [2023-11-21 22:11:23,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:23,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-11-21 22:11:23,394 INFO L175 Difference]: Start difference. First operand has 223 places, 238 transitions, 802 flow. Second operand 5 states and 1038 transitions. [2023-11-21 22:11:23,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 1067 flow [2023-11-21 22:11:23,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 253 transitions, 1042 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-11-21 22:11:23,408 INFO L231 Difference]: Finished difference. Result has 217 places, 243 transitions, 940 flow [2023-11-21 22:11:23,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=940, PETRI_PLACES=217, PETRI_TRANSITIONS=243} [2023-11-21 22:11:23,409 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -9 predicate places. [2023-11-21 22:11:23,410 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 243 transitions, 940 flow [2023-11-21 22:11:23,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 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) [2023-11-21 22:11:23,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:23,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:23,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:11:23,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:11:23,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:23,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1515391769, now seen corresponding path program 1 times [2023-11-21 22:11:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:23,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971554459] [2023-11-21 22:11:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:24,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:24,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:24,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971554459] [2023-11-21 22:11:24,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971554459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:24,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:24,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:24,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112923967] [2023-11-21 22:11:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:24,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:24,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:24,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:24,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:24,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 239 [2023-11-21 22:11:24,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 243 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 193.66666666666666) internal successors, (1162), 6 states have internal predecessors, (1162), 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) [2023-11-21 22:11:24,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:24,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 239 [2023-11-21 22:11:24,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:25,346 INFO L124 PetriNetUnfolderBase]: 659/5857 cut-off events. [2023-11-21 22:11:25,346 INFO L125 PetriNetUnfolderBase]: For 5960/6174 co-relation queries the response was YES. [2023-11-21 22:11:25,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12350 conditions, 5857 events. 659/5857 cut-off events. For 5960/6174 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 58905 event pairs, 251 based on Foata normal form. 0/5713 useless extension candidates. Maximal degree in co-relation 12203. Up to 1287 conditions per place. [2023-11-21 22:11:25,368 INFO L140 encePairwiseOnDemand]: 234/239 looper letters, 0 selfloop transitions, 0 changer transitions 278/278 dead transitions. [2023-11-21 22:11:25,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 278 transitions, 1436 flow [2023-11-21 22:11:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1193 transitions. [2023-11-21 22:11:25,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8319386331938633 [2023-11-21 22:11:25,373 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1193 transitions. [2023-11-21 22:11:25,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1193 transitions. [2023-11-21 22:11:25,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:25,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1193 transitions. [2023-11-21 22:11:25,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.83333333333334) internal successors, (1193), 6 states have internal predecessors, (1193), 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) [2023-11-21 22:11:25,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-11-21 22:11:25,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-11-21 22:11:25,383 INFO L175 Difference]: Start difference. First operand has 217 places, 243 transitions, 940 flow. Second operand 6 states and 1193 transitions. [2023-11-21 22:11:25,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 278 transitions, 1436 flow [2023-11-21 22:11:25,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 278 transitions, 1433 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:25,392 INFO L231 Difference]: Finished difference. Result has 219 places, 0 transitions, 0 flow [2023-11-21 22:11:25,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=219, PETRI_TRANSITIONS=0} [2023-11-21 22:11:25,393 INFO L281 CegarLoopForPetriNet]: 226 programPoint places, -7 predicate places. [2023-11-21 22:11:25,393 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 0 transitions, 0 flow [2023-11-21 22:11:25,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.66666666666666) internal successors, (1162), 6 states have internal predecessors, (1162), 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) [2023-11-21 22:11:25,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-11-21 22:11:25,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-21 22:11:25,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-21 22:11:25,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-21 22:11:25,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-21 22:11:25,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-21 22:11:25,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-21 22:11:25,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-21 22:11:25,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-21 22:11:25,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-21 22:11:25,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2023-11-21 22:11:25,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2023-11-21 22:11:25,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-21 22:11:25,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-21 22:11:25,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-21 22:11:25,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-21 22:11:25,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-21 22:11:25,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-21 22:11:25,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-21 22:11:25,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-21 22:11:25,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-21 22:11:25,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-21 22:11:25,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-21 22:11:25,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-21 22:11:25,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:11:25,402 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:25,408 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:11:25,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:25,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:25 BasicIcfg [2023-11-21 22:11:25,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:25,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:25,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:25,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:25,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:49" (3/4) ... [2023-11-21 22:11:25,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:11:25,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-11-21 22:11:25,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-21 22:11:25,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 22:11:25,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:11:25,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 22:11:25,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:11:25,523 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:11:25,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:11:25,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:25,525 INFO L158 Benchmark]: Toolchain (without parser) took 37243.48ms. Allocated memory was 130.0MB in the beginning and 9.7GB in the end (delta: 9.6GB). Free memory was 83.2MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2023-11-21 22:11:25,525 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:25,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.97ms. Allocated memory is still 130.0MB. Free memory was 82.8MB in the beginning and 61.6MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:11:25,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.03ms. Allocated memory is still 130.0MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:11:25,527 INFO L158 Benchmark]: Boogie Preprocessor took 45.14ms. Allocated memory is still 130.0MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:25,527 INFO L158 Benchmark]: RCFGBuilder took 840.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 115.4MB in the end (delta: -58.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:25,528 INFO L158 Benchmark]: TraceAbstraction took 35440.40ms. Allocated memory was 159.4MB in the beginning and 9.7GB in the end (delta: 9.6GB). Free memory was 114.5MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2023-11-21 22:11:25,528 INFO L158 Benchmark]: Witness Printer took 108.18ms. Allocated memory is still 9.7GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:11:25,530 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 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.97ms. Allocated memory is still 130.0MB. Free memory was 82.8MB in the beginning and 61.6MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.03ms. Allocated memory is still 130.0MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.14ms. Allocated memory is still 130.0MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 840.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 115.4MB in the end (delta: -58.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 35440.40ms. Allocated memory was 159.4MB in the beginning and 9.7GB in the end (delta: 9.6GB). Free memory was 114.5MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 108.18ms. Allocated memory is still 9.7GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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: 718]: 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: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: 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 5 procedures, 310 locations, 24 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: 35.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 947 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 661 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1699 IncrementalHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 94 mSDtfsCounter, 1699 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=940occurred in iteration=11, InterpolantAutomatonStates: 50, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 943 NumberOfCodeBlocks, 943 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 1999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:11:25,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b4d9c-eda1-491d-ada5-e931d0cbe1f8/bin/uautomizer-verify-bycVGegfSx/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