./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:14:24,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:14:24,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:14:24,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:14:24,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:14:24,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:14:24,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:14:24,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:14:24,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:14:24,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:14:24,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:14:24,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:14:24,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:14:24,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:14:24,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:14:24,398 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:14:24,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:14:24,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:14:24,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:14:24,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:14:24,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:14:24,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:14:24,401 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:14:24,401 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:14:24,402 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:14:24,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:14:24,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:14:24,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:14:24,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:14:24,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:14:24,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:24,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:14:24,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:14:24,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:14:24,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:14:24,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:14:24,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:14:24,407 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:14:24,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:14:24,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:14:24,407 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:14:24,408 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_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2023-11-06 21:14:24,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:14:24,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:14:24,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:14:24,751 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:14:24,752 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:14:24,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2023-11-06 21:14:27,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:28,127 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:28,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2023-11-06 21:14:28,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/data/699e51254/67e5fdafc6c045dd890a050d210fcda9/FLAG421cf7270 [2023-11-06 21:14:28,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/data/699e51254/67e5fdafc6c045dd890a050d210fcda9 [2023-11-06 21:14:28,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:28,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:28,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:28,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:28,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:28,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb99a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28, skipping insertion in model container [2023-11-06 21:14:28,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:14:28,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:28,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:14:28,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:28,818 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:14:28,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28 WrapperNode [2023-11-06 21:14:28,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:28,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:28,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:14:28,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:14:28,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,895 INFO L138 Inliner]: procedures = 170, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-11-06 21:14:28,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:28,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:14:28,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:14:28,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:14:28,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:14:28,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:14:28,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:14:28,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:14:28,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (1/1) ... [2023-11-06 21:14:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:28,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:29,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:29,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:14:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:14:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:14:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:14:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:14:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:14:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:14:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:14:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:14:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:14:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:14:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:14:29,057 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:14:29,319 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:14:29,321 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:14:29,690 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:14:29,701 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:14:29,701 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-06 21:14:29,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:29 BoogieIcfgContainer [2023-11-06 21:14:29,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:14:29,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:14:29,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:14:29,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:14:29,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:14:28" (1/3) ... [2023-11-06 21:14:29,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6cea0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:29, skipping insertion in model container [2023-11-06 21:14:29,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:28" (2/3) ... [2023-11-06 21:14:29,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6cea0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:29, skipping insertion in model container [2023-11-06 21:14:29,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:29" (3/3) ... [2023-11-06 21:14:29,722 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-11-06 21:14:29,731 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:14:29,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:14:29,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 21:14:29,744 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:14:29,831 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 21:14:29,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 303 flow [2023-11-06 21:14:29,978 INFO L124 PetriNetUnfolderBase]: 10/147 cut-off events. [2023-11-06 21:14:29,979 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 21:14:29,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 147 events. 10/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-06 21:14:29,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 303 flow [2023-11-06 21:14:30,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 137 transitions, 277 flow [2023-11-06 21:14:30,005 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:14:30,016 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 137 transitions, 277 flow [2023-11-06 21:14:30,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 137 transitions, 277 flow [2023-11-06 21:14:30,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 137 transitions, 277 flow [2023-11-06 21:14:30,061 INFO L124 PetriNetUnfolderBase]: 10/137 cut-off events. [2023-11-06 21:14:30,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:30,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 10/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-06 21:14:30,068 INFO L119 LiptonReduction]: Number of co-enabled transitions 4880 [2023-11-06 21:14:34,773 INFO L134 LiptonReduction]: Checked pairs total: 22212 [2023-11-06 21:14:34,773 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-11-06 21:14:34,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:14:34,797 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fe8c0a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:14:34,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-06 21:14:34,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:14:34,810 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2023-11-06 21:14:34,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:34,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:34,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:34,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:34,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1301546204, now seen corresponding path program 1 times [2023-11-06 21:14:34,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565955984] [2023-11-06 21:14:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:34,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:35,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:35,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565955984] [2023-11-06 21:14:35,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565955984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:35,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:35,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:35,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355882752] [2023-11-06 21:14:35,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:35,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:35,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:36,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-11-06 21:14:36,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:36,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:36,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-11-06 21:14:36,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:36,433 INFO L124 PetriNetUnfolderBase]: 135/369 cut-off events. [2023-11-06 21:14:36,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:36,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 369 events. 135/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1520 event pairs, 80 based on Foata normal form. 34/398 useless extension candidates. Maximal degree in co-relation 669. Up to 184 conditions per place. [2023-11-06 21:14:36,445 INFO L140 encePairwiseOnDemand]: 220/241 looper letters, 44 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2023-11-06 21:14:36,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 253 flow [2023-11-06 21:14:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:14:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:14:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 749 transitions. [2023-11-06 21:14:36,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179806362378977 [2023-11-06 21:14:36,483 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 749 transitions. [2023-11-06 21:14:36,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 749 transitions. [2023-11-06 21:14:36,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:36,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 749 transitions. [2023-11-06 21:14:36,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:36,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:36,505 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:36,507 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 127 flow. Second operand 6 states and 749 transitions. [2023-11-06 21:14:36,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 253 flow [2023-11-06 21:14:36,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:14:36,514 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-11-06 21:14:36,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-11-06 21:14:36,520 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-06 21:14:36,521 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-11-06 21:14:36,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:36,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:36,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:36,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:14:36,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:36,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 337992114, now seen corresponding path program 1 times [2023-11-06 21:14:36,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:36,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687654108] [2023-11-06 21:14:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:36,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:36,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:36,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687654108] [2023-11-06 21:14:36,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687654108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:36,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:36,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327748462] [2023-11-06 21:14:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:36,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:36,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:36,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:37,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 241 [2023-11-06 21:14:37,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:37,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:37,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 241 [2023-11-06 21:14:37,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:37,597 INFO L124 PetriNetUnfolderBase]: 284/846 cut-off events. [2023-11-06 21:14:37,598 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-06 21:14:37,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 846 events. 284/846 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4502 event pairs, 48 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 1560. Up to 377 conditions per place. [2023-11-06 21:14:37,606 INFO L140 encePairwiseOnDemand]: 227/241 looper letters, 81 selfloop transitions, 37 changer transitions 0/137 dead transitions. [2023-11-06 21:14:37,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 564 flow [2023-11-06 21:14:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:14:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:14:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 821 transitions. [2023-11-06 21:14:37,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5677731673582296 [2023-11-06 21:14:37,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 821 transitions. [2023-11-06 21:14:37,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 821 transitions. [2023-11-06 21:14:37,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:37,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 821 transitions. [2023-11-06 21:14:37,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:37,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:37,625 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:37,625 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 821 transitions. [2023-11-06 21:14:37,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 564 flow [2023-11-06 21:14:37,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 137 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:14:37,639 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-11-06 21:14:37,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-11-06 21:14:37,641 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-06 21:14:37,641 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-11-06 21:14:37,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:37,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:37,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:37,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:14:37,645 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:37,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:37,652 INFO L85 PathProgramCache]: Analyzing trace with hash -857608336, now seen corresponding path program 1 times [2023-11-06 21:14:37,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:37,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126605044] [2023-11-06 21:14:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:37,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:38,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:38,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126605044] [2023-11-06 21:14:38,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126605044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:38,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:38,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:38,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068365950] [2023-11-06 21:14:38,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:38,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:38,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:38,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:38,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:38,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 241 [2023-11-06 21:14:38,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 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) [2023-11-06 21:14:38,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:38,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 241 [2023-11-06 21:14:38,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:38,639 INFO L124 PetriNetUnfolderBase]: 624/1433 cut-off events. [2023-11-06 21:14:38,639 INFO L125 PetriNetUnfolderBase]: For 542/559 co-relation queries the response was YES. [2023-11-06 21:14:38,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3499 conditions, 1433 events. 624/1433 cut-off events. For 542/559 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7537 event pairs, 341 based on Foata normal form. 0/1386 useless extension candidates. Maximal degree in co-relation 3486. Up to 1190 conditions per place. [2023-11-06 21:14:38,651 INFO L140 encePairwiseOnDemand]: 226/241 looper letters, 95 selfloop transitions, 48 changer transitions 0/151 dead transitions. [2023-11-06 21:14:38,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 151 transitions, 852 flow [2023-11-06 21:14:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:14:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:14:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-11-06 21:14:38,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4972337482710927 [2023-11-06 21:14:38,655 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-11-06 21:14:38,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-11-06 21:14:38,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:38,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-11-06 21:14:38,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:38,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:38,664 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:38,664 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 719 transitions. [2023-11-06 21:14:38,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 151 transitions, 852 flow [2023-11-06 21:14:38,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 151 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:14:38,673 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 738 flow [2023-11-06 21:14:38,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-11-06 21:14:38,674 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2023-11-06 21:14:38,674 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 738 flow [2023-11-06 21:14:38,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 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) [2023-11-06 21:14:38,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:38,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:38,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:14:38,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:38,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1678663991, now seen corresponding path program 1 times [2023-11-06 21:14:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:38,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715112726] [2023-11-06 21:14:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:38,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:38,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:38,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715112726] [2023-11-06 21:14:38,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715112726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:38,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:38,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:38,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969866443] [2023-11-06 21:14:38,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:38,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:39,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 241 [2023-11-06 21:14:39,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 738 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:39,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:39,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 241 [2023-11-06 21:14:39,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:39,806 INFO L124 PetriNetUnfolderBase]: 540/1354 cut-off events. [2023-11-06 21:14:39,807 INFO L125 PetriNetUnfolderBase]: For 1021/1049 co-relation queries the response was YES. [2023-11-06 21:14:39,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3885 conditions, 1354 events. 540/1354 cut-off events. For 1021/1049 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7686 event pairs, 127 based on Foata normal form. 2/1325 useless extension candidates. Maximal degree in co-relation 3867. Up to 765 conditions per place. [2023-11-06 21:14:39,819 INFO L140 encePairwiseOnDemand]: 227/241 looper letters, 126 selfloop transitions, 75 changer transitions 12/253 dead transitions. [2023-11-06 21:14:39,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 253 transitions, 1736 flow [2023-11-06 21:14:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:14:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:14:39,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 820 transitions. [2023-11-06 21:14:39,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5670816044260027 [2023-11-06 21:14:39,823 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 820 transitions. [2023-11-06 21:14:39,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 820 transitions. [2023-11-06 21:14:39,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:39,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 820 transitions. [2023-11-06 21:14:39,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:39,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:39,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:39,833 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 738 flow. Second operand 6 states and 820 transitions. [2023-11-06 21:14:39,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 253 transitions, 1736 flow [2023-11-06 21:14:39,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 253 transitions, 1718 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-06 21:14:39,847 INFO L231 Difference]: Finished difference. Result has 84 places, 200 transitions, 1496 flow [2023-11-06 21:14:39,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1496, PETRI_PLACES=84, PETRI_TRANSITIONS=200} [2023-11-06 21:14:39,849 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-06 21:14:39,849 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 200 transitions, 1496 flow [2023-11-06 21:14:39,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:39,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:39,850 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] [2023-11-06 21:14:39,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:14:39,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:39,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:39,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2103779036, now seen corresponding path program 1 times [2023-11-06 21:14:39,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:39,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796678625] [2023-11-06 21:14:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:39,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:39,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:39,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796678625] [2023-11-06 21:14:39,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796678625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:39,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:39,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:14:39,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807122745] [2023-11-06 21:14:39,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:39,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:14:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:39,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:14:39,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:14:40,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 241 [2023-11-06 21:14:40,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 200 transitions, 1496 flow. Second operand has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:40,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:40,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 241 [2023-11-06 21:14:40,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:40,257 INFO L124 PetriNetUnfolderBase]: 138/542 cut-off events. [2023-11-06 21:14:40,258 INFO L125 PetriNetUnfolderBase]: For 670/711 co-relation queries the response was YES. [2023-11-06 21:14:40,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 542 events. 138/542 cut-off events. For 670/711 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2808 event pairs, 14 based on Foata normal form. 14/552 useless extension candidates. Maximal degree in co-relation 1620. Up to 138 conditions per place. [2023-11-06 21:14:40,263 INFO L140 encePairwiseOnDemand]: 233/241 looper letters, 32 selfloop transitions, 8 changer transitions 3/125 dead transitions. [2023-11-06 21:14:40,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 125 transitions, 916 flow [2023-11-06 21:14:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:14:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:14:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 530 transitions. [2023-11-06 21:14:40,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.549792531120332 [2023-11-06 21:14:40,267 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 530 transitions. [2023-11-06 21:14:40,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 530 transitions. [2023-11-06 21:14:40,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:40,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 530 transitions. [2023-11-06 21:14:40,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:40,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:40,273 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:40,273 INFO L175 Difference]: Start difference. First operand has 84 places, 200 transitions, 1496 flow. Second operand 4 states and 530 transitions. [2023-11-06 21:14:40,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 125 transitions, 916 flow [2023-11-06 21:14:40,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 125 transitions, 791 flow, removed 51 selfloop flow, removed 7 redundant places. [2023-11-06 21:14:40,284 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 718 flow [2023-11-06 21:14:40,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=718, PETRI_PLACES=80, PETRI_TRANSITIONS=119} [2023-11-06 21:14:40,286 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places. [2023-11-06 21:14:40,286 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 718 flow [2023-11-06 21:14:40,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:40,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:40,287 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] [2023-11-06 21:14:40,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:14:40,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:40,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1618596500, now seen corresponding path program 1 times [2023-11-06 21:14:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:40,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848320886] [2023-11-06 21:14:40,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:40,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:40,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:40,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848320886] [2023-11-06 21:14:40,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848320886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:40,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:40,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:14:40,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537386805] [2023-11-06 21:14:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:40,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 21:14:40,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:40,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 21:14:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:14:41,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-06 21:14:41,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 119 transitions, 718 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:41,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:41,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-06 21:14:41,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:42,091 INFO L124 PetriNetUnfolderBase]: 312/816 cut-off events. [2023-11-06 21:14:42,091 INFO L125 PetriNetUnfolderBase]: For 1229/1233 co-relation queries the response was YES. [2023-11-06 21:14:42,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2762 conditions, 816 events. 312/816 cut-off events. For 1229/1233 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3870 event pairs, 84 based on Foata normal form. 9/822 useless extension candidates. Maximal degree in co-relation 2740. Up to 579 conditions per place. [2023-11-06 21:14:42,101 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 122 selfloop transitions, 32 changer transitions 0/162 dead transitions. [2023-11-06 21:14:42,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 162 transitions, 1259 flow [2023-11-06 21:14:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:14:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:14:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 953 transitions. [2023-11-06 21:14:42,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43937298294144767 [2023-11-06 21:14:42,107 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 953 transitions. [2023-11-06 21:14:42,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 953 transitions. [2023-11-06 21:14:42,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:42,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 953 transitions. [2023-11-06 21:14:42,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.88888888888889) internal successors, (953), 9 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:42,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:42,120 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:42,120 INFO L175 Difference]: Start difference. First operand has 80 places, 119 transitions, 718 flow. Second operand 9 states and 953 transitions. [2023-11-06 21:14:42,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 162 transitions, 1259 flow [2023-11-06 21:14:42,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 162 transitions, 1237 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:14:42,134 INFO L231 Difference]: Finished difference. Result has 84 places, 118 transitions, 759 flow [2023-11-06 21:14:42,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=759, PETRI_PLACES=84, PETRI_TRANSITIONS=118} [2023-11-06 21:14:42,138 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-06 21:14:42,138 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 118 transitions, 759 flow [2023-11-06 21:14:42,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:42,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:42,141 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] [2023-11-06 21:14:42,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:14:42,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:42,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1410008479, now seen corresponding path program 1 times [2023-11-06 21:14:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:42,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968434372] [2023-11-06 21:14:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:42,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968434372] [2023-11-06 21:14:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968434372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:42,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:42,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:14:42,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936179109] [2023-11-06 21:14:42,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:42,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:14:42,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:14:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:14:43,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-06 21:14:43,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 118 transitions, 759 flow. Second operand has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:43,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:43,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-06 21:14:43,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:44,646 INFO L124 PetriNetUnfolderBase]: 293/846 cut-off events. [2023-11-06 21:14:44,647 INFO L125 PetriNetUnfolderBase]: For 891/893 co-relation queries the response was YES. [2023-11-06 21:14:44,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 846 events. 293/846 cut-off events. For 891/893 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4481 event pairs, 70 based on Foata normal form. 16/859 useless extension candidates. Maximal degree in co-relation 2875. Up to 402 conditions per place. [2023-11-06 21:14:44,656 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 114 selfloop transitions, 54 changer transitions 15/199 dead transitions. [2023-11-06 21:14:44,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 199 transitions, 1519 flow [2023-11-06 21:14:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:14:44,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:14:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1164 transitions. [2023-11-06 21:14:44,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5366528354080221 [2023-11-06 21:14:44,662 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1164 transitions. [2023-11-06 21:14:44,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1164 transitions. [2023-11-06 21:14:44,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:44,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1164 transitions. [2023-11-06 21:14:44,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.33333333333334) internal successors, (1164), 9 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,675 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,675 INFO L175 Difference]: Start difference. First operand has 84 places, 118 transitions, 759 flow. Second operand 9 states and 1164 transitions. [2023-11-06 21:14:44,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 199 transitions, 1519 flow [2023-11-06 21:14:44,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 199 transitions, 1415 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-06 21:14:44,688 INFO L231 Difference]: Finished difference. Result has 87 places, 128 transitions, 964 flow [2023-11-06 21:14:44,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=964, PETRI_PLACES=87, PETRI_TRANSITIONS=128} [2023-11-06 21:14:44,690 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2023-11-06 21:14:44,690 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 128 transitions, 964 flow [2023-11-06 21:14:44,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:44,691 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] [2023-11-06 21:14:44,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:14:44,692 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:44,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash 483660487, now seen corresponding path program 2 times [2023-11-06 21:14:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167295143] [2023-11-06 21:14:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:45,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:45,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167295143] [2023-11-06 21:14:45,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167295143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:45,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:45,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:14:45,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519614379] [2023-11-06 21:14:45,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:45,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 21:14:45,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 21:14:45,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:14:46,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-06 21:14:46,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 128 transitions, 964 flow. Second operand has 10 states, 10 states have (on average 115.7) internal successors, (1157), 10 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:46,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:46,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-06 21:14:46,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:46,750 INFO L124 PetriNetUnfolderBase]: 384/1058 cut-off events. [2023-11-06 21:14:46,750 INFO L125 PetriNetUnfolderBase]: For 1640/1640 co-relation queries the response was YES. [2023-11-06 21:14:46,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3889 conditions, 1058 events. 384/1058 cut-off events. For 1640/1640 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5811 event pairs, 23 based on Foata normal form. 21/1077 useless extension candidates. Maximal degree in co-relation 3862. Up to 375 conditions per place. [2023-11-06 21:14:46,762 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 192 selfloop transitions, 35 changer transitions 12/255 dead transitions. [2023-11-06 21:14:46,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 255 transitions, 2158 flow [2023-11-06 21:14:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:14:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 21:14:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1265 transitions. [2023-11-06 21:14:46,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.524896265560166 [2023-11-06 21:14:46,772 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1265 transitions. [2023-11-06 21:14:46,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1265 transitions. [2023-11-06 21:14:46,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:46,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1265 transitions. [2023-11-06 21:14:46,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.5) internal successors, (1265), 10 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:46,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:46,786 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:46,786 INFO L175 Difference]: Start difference. First operand has 87 places, 128 transitions, 964 flow. Second operand 10 states and 1265 transitions. [2023-11-06 21:14:46,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 255 transitions, 2158 flow [2023-11-06 21:14:46,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 255 transitions, 2099 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:14:46,807 INFO L231 Difference]: Finished difference. Result has 96 places, 151 transitions, 1250 flow [2023-11-06 21:14:46,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1250, PETRI_PLACES=96, PETRI_TRANSITIONS=151} [2023-11-06 21:14:46,812 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 39 predicate places. [2023-11-06 21:14:46,813 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 151 transitions, 1250 flow [2023-11-06 21:14:46,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.7) internal successors, (1157), 10 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:46,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:46,814 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] [2023-11-06 21:14:46,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:14:46,814 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:46,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1310672419, now seen corresponding path program 3 times [2023-11-06 21:14:46,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:46,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728005300] [2023-11-06 21:14:46,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:46,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:47,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:47,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728005300] [2023-11-06 21:14:47,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728005300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:47,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:47,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:14:47,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099209658] [2023-11-06 21:14:47,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:47,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:14:47,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:47,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:14:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:14:48,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-06 21:14:48,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 151 transitions, 1250 flow. Second operand has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:48,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:48,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-06 21:14:48,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:49,548 INFO L124 PetriNetUnfolderBase]: 425/1211 cut-off events. [2023-11-06 21:14:49,548 INFO L125 PetriNetUnfolderBase]: For 3726/3728 co-relation queries the response was YES. [2023-11-06 21:14:49,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5043 conditions, 1211 events. 425/1211 cut-off events. For 3726/3728 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7171 event pairs, 80 based on Foata normal form. 21/1228 useless extension candidates. Maximal degree in co-relation 5010. Up to 539 conditions per place. [2023-11-06 21:14:49,561 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 163 selfloop transitions, 67 changer transitions 18/264 dead transitions. [2023-11-06 21:14:49,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 264 transitions, 2371 flow [2023-11-06 21:14:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:14:49,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 21:14:49,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1298 transitions. [2023-11-06 21:14:49,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385892116182572 [2023-11-06 21:14:49,568 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1298 transitions. [2023-11-06 21:14:49,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1298 transitions. [2023-11-06 21:14:49,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:49,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1298 transitions. [2023-11-06 21:14:49,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.8) internal successors, (1298), 10 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:49,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:49,580 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:49,580 INFO L175 Difference]: Start difference. First operand has 96 places, 151 transitions, 1250 flow. Second operand 10 states and 1298 transitions. [2023-11-06 21:14:49,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 264 transitions, 2371 flow [2023-11-06 21:14:49,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 264 transitions, 2361 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:14:49,610 INFO L231 Difference]: Finished difference. Result has 107 places, 171 transitions, 1739 flow [2023-11-06 21:14:49,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1739, PETRI_PLACES=107, PETRI_TRANSITIONS=171} [2023-11-06 21:14:49,611 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-11-06 21:14:49,612 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 171 transitions, 1739 flow [2023-11-06 21:14:49,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:49,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:49,613 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] [2023-11-06 21:14:49,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:14:49,613 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:49,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:49,614 INFO L85 PathProgramCache]: Analyzing trace with hash 893375459, now seen corresponding path program 4 times [2023-11-06 21:14:49,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:49,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353905083] [2023-11-06 21:14:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:49,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:50,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:50,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353905083] [2023-11-06 21:14:50,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353905083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:50,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:50,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:14:50,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324270857] [2023-11-06 21:14:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:14:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:14:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:14:51,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-06 21:14:51,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 171 transitions, 1739 flow. Second operand has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:51,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:51,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-06 21:14:51,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:51,931 INFO L124 PetriNetUnfolderBase]: 490/1411 cut-off events. [2023-11-06 21:14:51,931 INFO L125 PetriNetUnfolderBase]: For 6610/6612 co-relation queries the response was YES. [2023-11-06 21:14:51,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6503 conditions, 1411 events. 490/1411 cut-off events. For 6610/6612 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8870 event pairs, 72 based on Foata normal form. 21/1424 useless extension candidates. Maximal degree in co-relation 6465. Up to 361 conditions per place. [2023-11-06 21:14:51,948 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 215 selfloop transitions, 85 changer transitions 18/334 dead transitions. [2023-11-06 21:14:51,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 334 transitions, 3570 flow [2023-11-06 21:14:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:14:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 21:14:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1301 transitions. [2023-11-06 21:14:51,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398340248962655 [2023-11-06 21:14:51,953 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1301 transitions. [2023-11-06 21:14:51,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1301 transitions. [2023-11-06 21:14:51,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:51,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1301 transitions. [2023-11-06 21:14:51,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 130.1) internal successors, (1301), 10 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:51,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:51,965 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:51,965 INFO L175 Difference]: Start difference. First operand has 107 places, 171 transitions, 1739 flow. Second operand 10 states and 1301 transitions. [2023-11-06 21:14:51,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 334 transitions, 3570 flow [2023-11-06 21:14:52,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 334 transitions, 3509 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-06 21:14:52,012 INFO L231 Difference]: Finished difference. Result has 117 places, 210 transitions, 2568 flow [2023-11-06 21:14:52,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=1685, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2568, PETRI_PLACES=117, PETRI_TRANSITIONS=210} [2023-11-06 21:14:52,014 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-06 21:14:52,014 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 210 transitions, 2568 flow [2023-11-06 21:14:52,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:52,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:52,015 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] [2023-11-06 21:14:52,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:14:52,015 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:52,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:52,016 INFO L85 PathProgramCache]: Analyzing trace with hash -184347359, now seen corresponding path program 5 times [2023-11-06 21:14:52,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:52,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659456020] [2023-11-06 21:14:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:52,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:52,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:52,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659456020] [2023-11-06 21:14:52,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659456020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:52,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:52,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:14:52,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248792455] [2023-11-06 21:14:52,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:52,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:14:52,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:52,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:14:52,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:14:53,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-06 21:14:53,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 210 transitions, 2568 flow. Second operand has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:53,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:53,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-06 21:14:53,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:54,741 INFO L124 PetriNetUnfolderBase]: 468/1419 cut-off events. [2023-11-06 21:14:54,741 INFO L125 PetriNetUnfolderBase]: For 9373/9375 co-relation queries the response was YES. [2023-11-06 21:14:54,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7043 conditions, 1419 events. 468/1419 cut-off events. For 9373/9375 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9205 event pairs, 60 based on Foata normal form. 21/1435 useless extension candidates. Maximal degree in co-relation 6999. Up to 527 conditions per place. [2023-11-06 21:14:54,757 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 199 selfloop transitions, 99 changer transitions 21/335 dead transitions. [2023-11-06 21:14:54,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 335 transitions, 4022 flow [2023-11-06 21:14:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:14:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 21:14:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1299 transitions. [2023-11-06 21:14:54,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5390041493775933 [2023-11-06 21:14:54,764 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1299 transitions. [2023-11-06 21:14:54,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1299 transitions. [2023-11-06 21:14:54,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:54,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1299 transitions. [2023-11-06 21:14:54,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:54,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:54,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 241.0) internal successors, (2651), 11 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:54,778 INFO L175 Difference]: Start difference. First operand has 117 places, 210 transitions, 2568 flow. Second operand 10 states and 1299 transitions. [2023-11-06 21:14:54,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 335 transitions, 4022 flow [2023-11-06 21:14:54,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 335 transitions, 3928 flow, removed 28 selfloop flow, removed 5 redundant places. [2023-11-06 21:14:54,842 INFO L231 Difference]: Finished difference. Result has 124 places, 224 transitions, 3101 flow [2023-11-06 21:14:54,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=2466, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3101, PETRI_PLACES=124, PETRI_TRANSITIONS=224} [2023-11-06 21:14:54,843 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-06 21:14:54,843 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 224 transitions, 3101 flow [2023-11-06 21:14:54,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 115.54545454545455) internal successors, (1271), 11 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:54,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:54,845 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] [2023-11-06 21:14:54,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:14:54,845 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:54,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash -520440946, now seen corresponding path program 1 times [2023-11-06 21:14:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:54,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97667435] [2023-11-06 21:14:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:54,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:55,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:55,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97667435] [2023-11-06 21:14:55,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97667435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:55,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:55,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:55,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217764325] [2023-11-06 21:14:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:55,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:55,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:55,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:55,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:55,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 241 [2023-11-06 21:14:55,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 224 transitions, 3101 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:55,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:55,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 241 [2023-11-06 21:14:55,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:55,824 INFO L124 PetriNetUnfolderBase]: 493/1419 cut-off events. [2023-11-06 21:14:55,824 INFO L125 PetriNetUnfolderBase]: For 10362/10372 co-relation queries the response was YES. [2023-11-06 21:14:55,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7735 conditions, 1419 events. 493/1419 cut-off events. For 10362/10372 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8782 event pairs, 173 based on Foata normal form. 31/1448 useless extension candidates. Maximal degree in co-relation 7689. Up to 1146 conditions per place. [2023-11-06 21:14:55,839 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 134 selfloop transitions, 51 changer transitions 93/287 dead transitions. [2023-11-06 21:14:55,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 287 transitions, 4350 flow [2023-11-06 21:14:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:14:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:14:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 686 transitions. [2023-11-06 21:14:55,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47441217150760717 [2023-11-06 21:14:55,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 686 transitions. [2023-11-06 21:14:55,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 686 transitions. [2023-11-06 21:14:55,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:55,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 686 transitions. [2023-11-06 21:14:55,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:55,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:55,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:55,850 INFO L175 Difference]: Start difference. First operand has 124 places, 224 transitions, 3101 flow. Second operand 6 states and 686 transitions. [2023-11-06 21:14:55,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 287 transitions, 4350 flow [2023-11-06 21:14:55,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 287 transitions, 4124 flow, removed 54 selfloop flow, removed 6 redundant places. [2023-11-06 21:14:55,915 INFO L231 Difference]: Finished difference. Result has 124 places, 190 transitions, 2329 flow [2023-11-06 21:14:55,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=2951, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2329, PETRI_PLACES=124, PETRI_TRANSITIONS=190} [2023-11-06 21:14:55,916 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-06 21:14:55,916 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 190 transitions, 2329 flow [2023-11-06 21:14:55,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:55,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:55,917 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] [2023-11-06 21:14:55,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 21:14:55,917 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:55,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:55,918 INFO L85 PathProgramCache]: Analyzing trace with hash -824313288, now seen corresponding path program 1 times [2023-11-06 21:14:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982003932] [2023-11-06 21:14:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:55,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:56,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:56,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982003932] [2023-11-06 21:14:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982003932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:56,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:14:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647395048] [2023-11-06 21:14:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:56,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:14:56,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:56,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:14:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:14:57,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 241 [2023-11-06 21:14:57,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 190 transitions, 2329 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:57,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:57,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 241 [2023-11-06 21:14:57,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:58,043 INFO L124 PetriNetUnfolderBase]: 172/709 cut-off events. [2023-11-06 21:14:58,043 INFO L125 PetriNetUnfolderBase]: For 4471/4541 co-relation queries the response was YES. [2023-11-06 21:14:58,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 709 events. 172/709 cut-off events. For 4471/4541 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4030 event pairs, 0 based on Foata normal form. 11/717 useless extension candidates. Maximal degree in co-relation 3348. Up to 193 conditions per place. [2023-11-06 21:14:58,064 INFO L140 encePairwiseOnDemand]: 230/241 looper letters, 35 selfloop transitions, 14 changer transitions 9/206 dead transitions. [2023-11-06 21:14:58,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 206 transitions, 2416 flow [2023-11-06 21:14:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:14:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 21:14:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1350 transitions. [2023-11-06 21:14:58,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5092417955488495 [2023-11-06 21:14:58,071 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1350 transitions. [2023-11-06 21:14:58,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1350 transitions. [2023-11-06 21:14:58,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:58,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1350 transitions. [2023-11-06 21:14:58,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.72727272727273) internal successors, (1350), 11 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:58,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 241.0) internal successors, (2892), 12 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:58,086 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 241.0) internal successors, (2892), 12 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:58,086 INFO L175 Difference]: Start difference. First operand has 124 places, 190 transitions, 2329 flow. Second operand 11 states and 1350 transitions. [2023-11-06 21:14:58,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 206 transitions, 2416 flow [2023-11-06 21:14:58,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 206 transitions, 2053 flow, removed 86 selfloop flow, removed 7 redundant places. [2023-11-06 21:14:58,127 INFO L231 Difference]: Finished difference. Result has 127 places, 185 transitions, 1921 flow [2023-11-06 21:14:58,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=1894, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1921, PETRI_PLACES=127, PETRI_TRANSITIONS=185} [2023-11-06 21:14:58,129 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 70 predicate places. [2023-11-06 21:14:58,129 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 185 transitions, 1921 flow [2023-11-06 21:14:58,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:58,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:58,131 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] [2023-11-06 21:14:58,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 21:14:58,131 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 21:14:58,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2117481104, now seen corresponding path program 2 times [2023-11-06 21:14:58,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:58,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845648030] [2023-11-06 21:14:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:58,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:58,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:58,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845648030] [2023-11-06 21:14:58,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845648030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:58,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:58,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:14:58,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61067861] [2023-11-06 21:14:58,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:58,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:14:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:58,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:14:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:14:59,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-06 21:14:59,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 185 transitions, 1921 flow. Second operand has 11 states, 11 states have (on average 100.36363636363636) internal successors, (1104), 11 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:59,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:59,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-06 21:14:59,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:59,775 INFO L124 PetriNetUnfolderBase]: 323/910 cut-off events. [2023-11-06 21:14:59,775 INFO L125 PetriNetUnfolderBase]: For 5738/5738 co-relation queries the response was YES. [2023-11-06 21:14:59,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4654 conditions, 910 events. 323/910 cut-off events. For 5738/5738 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4726 event pairs, 110 based on Foata normal form. 18/928 useless extension candidates. Maximal degree in co-relation 4607. Up to 610 conditions per place. [2023-11-06 21:14:59,781 INFO L140 encePairwiseOnDemand]: 233/241 looper letters, 0 selfloop transitions, 0 changer transitions 232/232 dead transitions. [2023-11-06 21:14:59,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 232 transitions, 2779 flow [2023-11-06 21:14:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:14:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:14:59,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 945 transitions. [2023-11-06 21:14:59,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43568464730290457 [2023-11-06 21:14:59,786 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 945 transitions. [2023-11-06 21:14:59,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 945 transitions. [2023-11-06 21:14:59,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:59,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 945 transitions. [2023-11-06 21:14:59,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:59,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:59,793 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:59,793 INFO L175 Difference]: Start difference. First operand has 127 places, 185 transitions, 1921 flow. Second operand 9 states and 945 transitions. [2023-11-06 21:14:59,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 232 transitions, 2779 flow [2023-11-06 21:14:59,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 232 transitions, 2671 flow, removed 3 selfloop flow, removed 15 redundant places. [2023-11-06 21:14:59,825 INFO L231 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2023-11-06 21:14:59,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=1820, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2023-11-06 21:14:59,826 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 61 predicate places. [2023-11-06 21:14:59,826 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2023-11-06 21:14:59,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 100.36363636363636) internal successors, (1104), 11 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-06 21:14:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-06 21:14:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-06 21:14:59,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-06 21:14:59,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-06 21:14:59,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-06 21:14:59,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 21:14:59,836 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:59,842 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:14:59,842 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:14:59,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:14:59 BasicIcfg [2023-11-06 21:14:59,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:14:59,846 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:14:59,846 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:14:59,847 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:14:59,847 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:29" (3/4) ... [2023-11-06 21:14:59,849 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:14:59,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 21:14:59,863 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-06 21:14:59,864 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:14:59,864 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:14:59,864 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:14:59,930 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:14:59,931 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:14:59,931 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:14:59,931 INFO L158 Benchmark]: Toolchain (without parser) took 31762.85ms. Allocated memory was 121.6MB in the beginning and 346.0MB in the end (delta: 224.4MB). Free memory was 77.2MB in the beginning and 263.3MB in the end (delta: -186.1MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,932 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:14:59,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 648.47ms. Allocated memory is still 121.6MB. Free memory was 77.2MB in the beginning and 56.7MB in the end (delta: 20.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.08ms. Allocated memory is still 121.6MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,933 INFO L158 Benchmark]: Boogie Preprocessor took 53.24ms. Allocated memory is still 121.6MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,933 INFO L158 Benchmark]: RCFGBuilder took 756.68ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 52.5MB in the beginning and 126.1MB in the end (delta: -73.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,934 INFO L158 Benchmark]: TraceAbstraction took 30134.42ms. Allocated memory was 165.7MB in the beginning and 346.0MB in the end (delta: 180.4MB). Free memory was 125.0MB in the beginning and 267.5MB in the end (delta: -142.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,934 INFO L158 Benchmark]: Witness Printer took 84.65ms. Allocated memory is still 346.0MB. Free memory was 267.5MB in the beginning and 263.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:14:59,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 648.47ms. Allocated memory is still 121.6MB. Free memory was 77.2MB in the beginning and 56.7MB in the end (delta: 20.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.08ms. Allocated memory is still 121.6MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.24ms. Allocated memory is still 121.6MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 756.68ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 52.5MB in the beginning and 126.1MB in the end (delta: -73.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 30134.42ms. Allocated memory was 165.7MB in the beginning and 346.0MB in the end (delta: 180.4MB). Free memory was 125.0MB in the beginning and 267.5MB in the end (delta: -142.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 84.65ms. Allocated memory is still 346.0MB. Free memory was 267.5MB in the beginning and 263.3MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 131 PlacesBefore, 57 PlacesAfterwards, 137 TransitionsBefore, 62 TransitionsAfterwards, 4880 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 22212 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5374, independent: 4761, independent conditional: 0, independent unconditional: 4761, dependent: 613, dependent conditional: 0, dependent unconditional: 613, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2443, independent: 2343, independent conditional: 0, independent unconditional: 2343, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5374, independent: 2418, independent conditional: 0, independent unconditional: 2418, dependent: 513, dependent conditional: 0, dependent unconditional: 513, unknown: 2443, unknown conditional: 0, unknown unconditional: 2443] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 286, Positive conditional cache size: 0, Positive unconditional cache size: 286, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 11 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: 30.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4196 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3247 mSDsluCounter, 1422 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1212 mSDsCounter, 964 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13009 IncrementalHoareTripleChecker+Invalid, 13973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 964 mSolverCounterUnsat, 210 mSDtfsCounter, 13009 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3101occurred in iteration=11, InterpolantAutomatonStates: 112, 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, 6.3s InterpolantComputationTime, 353 NumberOfCodeBlocks, 353 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 3684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:14:59,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0849453c-f17d-4cd8-92e3-c82624cb8ad2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE