./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/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_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:48,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:48,795 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:33:48,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:48,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:48,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:48,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:48,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:48,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:48,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:48,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:48,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:48,838 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:48,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:48,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:48,840 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:48,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:48,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:48,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:48,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:48,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:48,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:48,844 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:33:48,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:48,844 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:48,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:48,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:48,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:48,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:48,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:48,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:48,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:48,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:48,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:48,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:48,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:48,849 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:48,849 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:48,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:48,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:48,850 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:48,850 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_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2023-11-19 07:33:49,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:49,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:49,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:49,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:49,151 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:49,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2023-11-19 07:33:52,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:53,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:53,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2023-11-19 07:33:53,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/data/c0cad786d/944f3209e5de4cd2926019ea701394a3/FLAGebd1fd083 [2023-11-19 07:33:53,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/data/c0cad786d/944f3209e5de4cd2926019ea701394a3 [2023-11-19 07:33:53,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:53,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:53,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:53,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:53,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:53,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d029393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53, skipping insertion in model container [2023-11-19 07:33:53,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:53,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:53,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:53,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:54,037 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:54,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54 WrapperNode [2023-11-19 07:33:54,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:54,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:54,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:54,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:54,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,121 INFO L138 Inliner]: procedures = 170, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-11-19 07:33:54,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:54,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:54,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:54,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:54,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:54,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:54,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:54,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:54,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (1/1) ... [2023-11-19 07:33:54,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:54,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:54,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:54,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:33:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:33:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:33:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:33:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:33:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:33:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:33:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:54,273 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:33:54,427 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:54,430 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:54,857 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:54,870 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:54,871 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 07:33:54,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:54 BoogieIcfgContainer [2023-11-19 07:33:54,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:54,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:54,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:54,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:54,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:53" (1/3) ... [2023-11-19 07:33:54,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b19158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:54, skipping insertion in model container [2023-11-19 07:33:54,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:54" (2/3) ... [2023-11-19 07:33:54,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b19158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:54, skipping insertion in model container [2023-11-19 07:33:54,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:54" (3/3) ... [2023-11-19 07:33:54,888 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-11-19 07:33:54,900 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:33:54,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:54,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:33:54,915 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:33:55,065 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:33:55,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 303 flow [2023-11-19 07:33:55,205 INFO L124 PetriNetUnfolderBase]: 10/147 cut-off events. [2023-11-19 07:33:55,207 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:33:55,227 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. [2023-11-19 07:33:55,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 148 transitions, 303 flow [2023-11-19 07:33:55,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 137 transitions, 277 flow [2023-11-19 07:33:55,249 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:33:55,269 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 137 transitions, 277 flow [2023-11-19 07:33:55,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 137 transitions, 277 flow [2023-11-19 07:33:55,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 137 transitions, 277 flow [2023-11-19 07:33:55,340 INFO L124 PetriNetUnfolderBase]: 10/137 cut-off events. [2023-11-19 07:33:55,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:55,342 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. [2023-11-19 07:33:55,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 4880 [2023-11-19 07:34:00,176 INFO L134 LiptonReduction]: Checked pairs total: 22212 [2023-11-19 07:34:00,176 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-11-19 07:34:00,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:00,202 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35676756, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:00,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:34:00,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:34:00,212 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2023-11-19 07:34:00,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:00,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:00,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:00,214 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)] === [2023-11-19 07:34:00,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1301546204, now seen corresponding path program 1 times [2023-11-19 07:34:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709291348] [2023-11-19 07:34:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:01,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:01,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709291348] [2023-11-19 07:34:01,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709291348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:01,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:01,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:01,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026722758] [2023-11-19 07:34:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:01,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:01,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-11-19 07:34:01,404 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) [2023-11-19 07:34:01,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:01,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-11-19 07:34:01,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:01,622 INFO L124 PetriNetUnfolderBase]: 135/369 cut-off events. [2023-11-19 07:34:01,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:01,624 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. [2023-11-19 07:34:01,628 INFO L140 encePairwiseOnDemand]: 220/241 looper letters, 44 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2023-11-19 07:34:01,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 253 flow [2023-11-19 07:34:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 749 transitions. [2023-11-19 07:34:01,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179806362378977 [2023-11-19 07:34:01,656 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 749 transitions. [2023-11-19 07:34:01,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 749 transitions. [2023-11-19 07:34:01,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:01,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 749 transitions. [2023-11-19 07:34:01,669 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) [2023-11-19 07:34:01,677 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) [2023-11-19 07:34:01,679 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) [2023-11-19 07:34:01,681 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 127 flow. Second operand 6 states and 749 transitions. [2023-11-19 07:34:01,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 253 flow [2023-11-19 07:34:01,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:01,688 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-11-19 07:34:01,690 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} [2023-11-19 07:34:01,694 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-19 07:34:01,694 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-11-19 07:34:01,695 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) [2023-11-19 07:34:01,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:01,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:01,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:01,696 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)] === [2023-11-19 07:34:01,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash 337992114, now seen corresponding path program 1 times [2023-11-19 07:34:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:01,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154918917] [2023-11-19 07:34:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:01,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154918917] [2023-11-19 07:34:01,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154918917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:01,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:01,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:01,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522260291] [2023-11-19 07:34:01,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:01,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:01,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:01,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:02,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 241 [2023-11-19 07:34:02,212 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) [2023-11-19 07:34:02,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:02,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 241 [2023-11-19 07:34:02,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:02,608 INFO L124 PetriNetUnfolderBase]: 284/846 cut-off events. [2023-11-19 07:34:02,609 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-19 07:34:02,611 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. [2023-11-19 07:34:02,616 INFO L140 encePairwiseOnDemand]: 227/241 looper letters, 81 selfloop transitions, 37 changer transitions 0/137 dead transitions. [2023-11-19 07:34:02,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 564 flow [2023-11-19 07:34:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 821 transitions. [2023-11-19 07:34:02,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5677731673582296 [2023-11-19 07:34:02,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 821 transitions. [2023-11-19 07:34:02,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 821 transitions. [2023-11-19 07:34:02,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:02,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 821 transitions. [2023-11-19 07:34:02,627 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) [2023-11-19 07:34:02,632 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) [2023-11-19 07:34:02,633 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) [2023-11-19 07:34:02,634 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 821 transitions. [2023-11-19 07:34:02,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 564 flow [2023-11-19 07:34:02,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 137 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:34:02,641 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-11-19 07:34:02,642 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} [2023-11-19 07:34:02,643 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-19 07:34:02,643 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-11-19 07:34:02,644 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) [2023-11-19 07:34:02,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:02,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:34:02,645 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)] === [2023-11-19 07:34:02,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash -857608336, now seen corresponding path program 1 times [2023-11-19 07:34:02,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:02,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602254961] [2023-11-19 07:34:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:02,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602254961] [2023-11-19 07:34:02,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602254961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:02,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:02,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:02,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327981798] [2023-11-19 07:34:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:02,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:03,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 241 [2023-11-19 07:34:03,203 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) [2023-11-19 07:34:03,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:03,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 241 [2023-11-19 07:34:03,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:03,606 INFO L124 PetriNetUnfolderBase]: 624/1433 cut-off events. [2023-11-19 07:34:03,607 INFO L125 PetriNetUnfolderBase]: For 542/559 co-relation queries the response was YES. [2023-11-19 07:34:03,610 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. [2023-11-19 07:34:03,620 INFO L140 encePairwiseOnDemand]: 226/241 looper letters, 95 selfloop transitions, 48 changer transitions 0/151 dead transitions. [2023-11-19 07:34:03,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 151 transitions, 852 flow [2023-11-19 07:34:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-11-19 07:34:03,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4972337482710927 [2023-11-19 07:34:03,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-11-19 07:34:03,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-11-19 07:34:03,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:03,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-11-19 07:34:03,630 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) [2023-11-19 07:34:03,634 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) [2023-11-19 07:34:03,636 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) [2023-11-19 07:34:03,636 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 719 transitions. [2023-11-19 07:34:03,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 151 transitions, 852 flow [2023-11-19 07:34:03,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 151 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:34:03,652 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 738 flow [2023-11-19 07:34:03,652 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} [2023-11-19 07:34:03,654 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2023-11-19 07:34:03,658 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 738 flow [2023-11-19 07:34:03,659 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) [2023-11-19 07:34:03,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:03,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:03,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:34:03,661 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)] === [2023-11-19 07:34:03,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1678663991, now seen corresponding path program 1 times [2023-11-19 07:34:03,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:03,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942949884] [2023-11-19 07:34:03,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:03,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:04,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:04,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942949884] [2023-11-19 07:34:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942949884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:04,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:04,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72072471] [2023-11-19 07:34:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:04,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:04,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:04,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 241 [2023-11-19 07:34:04,327 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) [2023-11-19 07:34:04,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:04,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 241 [2023-11-19 07:34:04,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:04,818 INFO L124 PetriNetUnfolderBase]: 540/1354 cut-off events. [2023-11-19 07:34:04,818 INFO L125 PetriNetUnfolderBase]: For 1021/1049 co-relation queries the response was YES. [2023-11-19 07:34:04,824 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. [2023-11-19 07:34:04,835 INFO L140 encePairwiseOnDemand]: 227/241 looper letters, 126 selfloop transitions, 75 changer transitions 12/253 dead transitions. [2023-11-19 07:34:04,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 253 transitions, 1736 flow [2023-11-19 07:34:04,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:04,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 820 transitions. [2023-11-19 07:34:04,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5670816044260027 [2023-11-19 07:34:04,840 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 820 transitions. [2023-11-19 07:34:04,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 820 transitions. [2023-11-19 07:34:04,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:04,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 820 transitions. [2023-11-19 07:34:04,845 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) [2023-11-19 07:34:04,849 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) [2023-11-19 07:34:04,850 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) [2023-11-19 07:34:04,850 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 738 flow. Second operand 6 states and 820 transitions. [2023-11-19 07:34:04,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 253 transitions, 1736 flow [2023-11-19 07:34:04,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 253 transitions, 1718 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-19 07:34:04,868 INFO L231 Difference]: Finished difference. Result has 84 places, 200 transitions, 1496 flow [2023-11-19 07:34:04,869 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} [2023-11-19 07:34:04,870 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-19 07:34:04,870 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 200 transitions, 1496 flow [2023-11-19 07:34:04,871 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) [2023-11-19 07:34:04,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:04,871 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] [2023-11-19 07:34:04,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:34:04,872 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)] === [2023-11-19 07:34:04,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:04,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2103779036, now seen corresponding path program 1 times [2023-11-19 07:34:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:04,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286549205] [2023-11-19 07:34:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:04,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:05,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286549205] [2023-11-19 07:34:05,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286549205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:05,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144015821] [2023-11-19 07:34:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:05,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:05,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 241 [2023-11-19 07:34:05,085 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) [2023-11-19 07:34:05,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:05,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 241 [2023-11-19 07:34:05,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:05,265 INFO L124 PetriNetUnfolderBase]: 138/542 cut-off events. [2023-11-19 07:34:05,265 INFO L125 PetriNetUnfolderBase]: For 670/711 co-relation queries the response was YES. [2023-11-19 07:34:05,268 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. [2023-11-19 07:34:05,271 INFO L140 encePairwiseOnDemand]: 233/241 looper letters, 32 selfloop transitions, 8 changer transitions 3/125 dead transitions. [2023-11-19 07:34:05,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 125 transitions, 916 flow [2023-11-19 07:34:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:34:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 530 transitions. [2023-11-19 07:34:05,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.549792531120332 [2023-11-19 07:34:05,275 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 530 transitions. [2023-11-19 07:34:05,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 530 transitions. [2023-11-19 07:34:05,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:05,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 530 transitions. [2023-11-19 07:34:05,279 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) [2023-11-19 07:34:05,281 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) [2023-11-19 07:34:05,282 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) [2023-11-19 07:34:05,282 INFO L175 Difference]: Start difference. First operand has 84 places, 200 transitions, 1496 flow. Second operand 4 states and 530 transitions. [2023-11-19 07:34:05,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 125 transitions, 916 flow [2023-11-19 07:34:05,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 125 transitions, 791 flow, removed 51 selfloop flow, removed 7 redundant places. [2023-11-19 07:34:05,297 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 718 flow [2023-11-19 07:34:05,297 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} [2023-11-19 07:34:05,300 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places. [2023-11-19 07:34:05,301 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 718 flow [2023-11-19 07:34:05,301 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) [2023-11-19 07:34:05,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:05,302 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] [2023-11-19 07:34:05,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:34:05,302 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)] === [2023-11-19 07:34:05,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1618596500, now seen corresponding path program 1 times [2023-11-19 07:34:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114142538] [2023-11-19 07:34:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114142538] [2023-11-19 07:34:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114142538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:05,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:05,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:34:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781350560] [2023-11-19 07:34:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:05,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:34:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:05,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:34:05,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:06,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:34:06,527 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) [2023-11-19 07:34:06,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:06,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:34:06,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:07,056 INFO L124 PetriNetUnfolderBase]: 312/816 cut-off events. [2023-11-19 07:34:07,056 INFO L125 PetriNetUnfolderBase]: For 1229/1233 co-relation queries the response was YES. [2023-11-19 07:34:07,060 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. [2023-11-19 07:34:07,067 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 122 selfloop transitions, 32 changer transitions 0/162 dead transitions. [2023-11-19 07:34:07,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 162 transitions, 1259 flow [2023-11-19 07:34:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:34:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:34:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 953 transitions. [2023-11-19 07:34:07,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43937298294144767 [2023-11-19 07:34:07,074 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 953 transitions. [2023-11-19 07:34:07,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 953 transitions. [2023-11-19 07:34:07,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:07,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 953 transitions. [2023-11-19 07:34:07,079 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) [2023-11-19 07:34:07,085 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) [2023-11-19 07:34:07,086 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) [2023-11-19 07:34:07,087 INFO L175 Difference]: Start difference. First operand has 80 places, 119 transitions, 718 flow. Second operand 9 states and 953 transitions. [2023-11-19 07:34:07,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 162 transitions, 1259 flow [2023-11-19 07:34:07,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 162 transitions, 1237 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:34:07,100 INFO L231 Difference]: Finished difference. Result has 84 places, 118 transitions, 759 flow [2023-11-19 07:34:07,101 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} [2023-11-19 07:34:07,102 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-19 07:34:07,102 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 118 transitions, 759 flow [2023-11-19 07:34:07,103 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) [2023-11-19 07:34:07,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:07,104 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] [2023-11-19 07:34:07,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:34:07,104 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)] === [2023-11-19 07:34:07,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1410008479, now seen corresponding path program 1 times [2023-11-19 07:34:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462638692] [2023-11-19 07:34:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:07,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:07,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:07,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462638692] [2023-11-19 07:34:07,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462638692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:07,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:07,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:34:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601753035] [2023-11-19 07:34:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:07,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:34:07,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:34:07,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:08,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-19 07:34:08,838 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) [2023-11-19 07:34:08,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:08,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-19 07:34:08,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:09,785 INFO L124 PetriNetUnfolderBase]: 293/846 cut-off events. [2023-11-19 07:34:09,785 INFO L125 PetriNetUnfolderBase]: For 891/893 co-relation queries the response was YES. [2023-11-19 07:34:09,788 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. [2023-11-19 07:34:09,795 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 114 selfloop transitions, 54 changer transitions 15/199 dead transitions. [2023-11-19 07:34:09,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 199 transitions, 1519 flow [2023-11-19 07:34:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:34:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:34:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1164 transitions. [2023-11-19 07:34:09,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5366528354080221 [2023-11-19 07:34:09,802 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1164 transitions. [2023-11-19 07:34:09,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1164 transitions. [2023-11-19 07:34:09,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:09,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1164 transitions. [2023-11-19 07:34:09,809 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) [2023-11-19 07:34:09,815 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) [2023-11-19 07:34:09,822 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) [2023-11-19 07:34:09,822 INFO L175 Difference]: Start difference. First operand has 84 places, 118 transitions, 759 flow. Second operand 9 states and 1164 transitions. [2023-11-19 07:34:09,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 199 transitions, 1519 flow [2023-11-19 07:34:09,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 199 transitions, 1415 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-19 07:34:09,839 INFO L231 Difference]: Finished difference. Result has 87 places, 128 transitions, 964 flow [2023-11-19 07:34:09,840 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} [2023-11-19 07:34:09,841 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2023-11-19 07:34:09,842 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 128 transitions, 964 flow [2023-11-19 07:34:09,843 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) [2023-11-19 07:34:09,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:09,845 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] [2023-11-19 07:34:09,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:34:09,846 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)] === [2023-11-19 07:34:09,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:09,847 INFO L85 PathProgramCache]: Analyzing trace with hash 483660487, now seen corresponding path program 2 times [2023-11-19 07:34:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670867193] [2023-11-19 07:34:09,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:10,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:10,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670867193] [2023-11-19 07:34:10,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670867193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:10,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:10,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:34:10,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153664132] [2023-11-19 07:34:10,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:10,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:34:10,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:10,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:34:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:34:11,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-19 07:34:11,158 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) [2023-11-19 07:34:11,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:11,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-19 07:34:11,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:11,878 INFO L124 PetriNetUnfolderBase]: 384/1058 cut-off events. [2023-11-19 07:34:11,878 INFO L125 PetriNetUnfolderBase]: For 1640/1640 co-relation queries the response was YES. [2023-11-19 07:34:11,883 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. [2023-11-19 07:34:11,890 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 192 selfloop transitions, 35 changer transitions 12/255 dead transitions. [2023-11-19 07:34:11,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 255 transitions, 2158 flow [2023-11-19 07:34:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:11,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:34:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1265 transitions. [2023-11-19 07:34:11,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.524896265560166 [2023-11-19 07:34:11,897 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1265 transitions. [2023-11-19 07:34:11,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1265 transitions. [2023-11-19 07:34:11,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:11,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1265 transitions. [2023-11-19 07:34:11,904 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) [2023-11-19 07:34:11,909 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) [2023-11-19 07:34:11,912 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) [2023-11-19 07:34:11,912 INFO L175 Difference]: Start difference. First operand has 87 places, 128 transitions, 964 flow. Second operand 10 states and 1265 transitions. [2023-11-19 07:34:11,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 255 transitions, 2158 flow [2023-11-19 07:34:11,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 255 transitions, 2099 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:34:11,929 INFO L231 Difference]: Finished difference. Result has 96 places, 151 transitions, 1250 flow [2023-11-19 07:34:11,930 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} [2023-11-19 07:34:11,933 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 39 predicate places. [2023-11-19 07:34:11,933 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 151 transitions, 1250 flow [2023-11-19 07:34:11,934 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) [2023-11-19 07:34:11,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:11,938 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] [2023-11-19 07:34:11,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:34:11,938 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)] === [2023-11-19 07:34:11,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1310672419, now seen corresponding path program 3 times [2023-11-19 07:34:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548107654] [2023-11-19 07:34:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548107654] [2023-11-19 07:34:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548107654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:34:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906146001] [2023-11-19 07:34:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:12,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:34:12,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:34:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:13,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-19 07:34:13,567 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) [2023-11-19 07:34:13,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:13,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-19 07:34:13,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:14,712 INFO L124 PetriNetUnfolderBase]: 425/1211 cut-off events. [2023-11-19 07:34:14,713 INFO L125 PetriNetUnfolderBase]: For 3726/3728 co-relation queries the response was YES. [2023-11-19 07:34:14,719 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. [2023-11-19 07:34:14,729 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 163 selfloop transitions, 67 changer transitions 18/264 dead transitions. [2023-11-19 07:34:14,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 264 transitions, 2371 flow [2023-11-19 07:34:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:14,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:34:14,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1298 transitions. [2023-11-19 07:34:14,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385892116182572 [2023-11-19 07:34:14,737 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1298 transitions. [2023-11-19 07:34:14,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1298 transitions. [2023-11-19 07:34:14,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:14,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1298 transitions. [2023-11-19 07:34:14,744 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) [2023-11-19 07:34:14,751 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) [2023-11-19 07:34:14,753 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) [2023-11-19 07:34:14,753 INFO L175 Difference]: Start difference. First operand has 96 places, 151 transitions, 1250 flow. Second operand 10 states and 1298 transitions. [2023-11-19 07:34:14,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 264 transitions, 2371 flow [2023-11-19 07:34:14,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 264 transitions, 2361 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:34:14,784 INFO L231 Difference]: Finished difference. Result has 107 places, 171 transitions, 1739 flow [2023-11-19 07:34:14,785 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} [2023-11-19 07:34:14,786 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-11-19 07:34:14,786 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 171 transitions, 1739 flow [2023-11-19 07:34:14,787 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) [2023-11-19 07:34:14,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:14,788 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] [2023-11-19 07:34:14,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:34:14,788 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)] === [2023-11-19 07:34:14,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash 893375459, now seen corresponding path program 4 times [2023-11-19 07:34:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135172542] [2023-11-19 07:34:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:15,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:15,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135172542] [2023-11-19 07:34:15,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135172542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:34:15,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609336008] [2023-11-19 07:34:15,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:15,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:34:15,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:15,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:34:15,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:16,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-19 07:34:16,389 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) [2023-11-19 07:34:16,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:16,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-19 07:34:16,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:17,273 INFO L124 PetriNetUnfolderBase]: 490/1411 cut-off events. [2023-11-19 07:34:17,274 INFO L125 PetriNetUnfolderBase]: For 6610/6612 co-relation queries the response was YES. [2023-11-19 07:34:17,282 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. [2023-11-19 07:34:17,294 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 215 selfloop transitions, 85 changer transitions 18/334 dead transitions. [2023-11-19 07:34:17,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 334 transitions, 3570 flow [2023-11-19 07:34:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:34:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1301 transitions. [2023-11-19 07:34:17,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398340248962655 [2023-11-19 07:34:17,303 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1301 transitions. [2023-11-19 07:34:17,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1301 transitions. [2023-11-19 07:34:17,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:17,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1301 transitions. [2023-11-19 07:34:17,310 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) [2023-11-19 07:34:17,317 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) [2023-11-19 07:34:17,319 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) [2023-11-19 07:34:17,319 INFO L175 Difference]: Start difference. First operand has 107 places, 171 transitions, 1739 flow. Second operand 10 states and 1301 transitions. [2023-11-19 07:34:17,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 334 transitions, 3570 flow [2023-11-19 07:34:17,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 334 transitions, 3509 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-19 07:34:17,373 INFO L231 Difference]: Finished difference. Result has 117 places, 210 transitions, 2568 flow [2023-11-19 07:34:17,374 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} [2023-11-19 07:34:17,375 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-19 07:34:17,375 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 210 transitions, 2568 flow [2023-11-19 07:34:17,376 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) [2023-11-19 07:34:17,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:17,377 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] [2023-11-19 07:34:17,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:34:17,377 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)] === [2023-11-19 07:34:17,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:17,378 INFO L85 PathProgramCache]: Analyzing trace with hash -184347359, now seen corresponding path program 5 times [2023-11-19 07:34:17,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:17,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834554651] [2023-11-19 07:34:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:18,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834554651] [2023-11-19 07:34:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834554651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:18,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:18,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:34:18,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284025522] [2023-11-19 07:34:18,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:34:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:34:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:19,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 241 [2023-11-19 07:34:19,127 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) [2023-11-19 07:34:19,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:19,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 241 [2023-11-19 07:34:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:20,408 INFO L124 PetriNetUnfolderBase]: 468/1419 cut-off events. [2023-11-19 07:34:20,408 INFO L125 PetriNetUnfolderBase]: For 9373/9375 co-relation queries the response was YES. [2023-11-19 07:34:20,420 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. [2023-11-19 07:34:20,433 INFO L140 encePairwiseOnDemand]: 224/241 looper letters, 199 selfloop transitions, 99 changer transitions 21/335 dead transitions. [2023-11-19 07:34:20,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 335 transitions, 4022 flow [2023-11-19 07:34:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:34:20,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:34:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1299 transitions. [2023-11-19 07:34:20,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5390041493775933 [2023-11-19 07:34:20,441 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1299 transitions. [2023-11-19 07:34:20,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1299 transitions. [2023-11-19 07:34:20,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:20,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1299 transitions. [2023-11-19 07:34:20,449 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) [2023-11-19 07:34:20,455 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) [2023-11-19 07:34:20,456 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) [2023-11-19 07:34:20,456 INFO L175 Difference]: Start difference. First operand has 117 places, 210 transitions, 2568 flow. Second operand 10 states and 1299 transitions. [2023-11-19 07:34:20,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 335 transitions, 4022 flow [2023-11-19 07:34:20,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 335 transitions, 3928 flow, removed 28 selfloop flow, removed 5 redundant places. [2023-11-19 07:34:20,568 INFO L231 Difference]: Finished difference. Result has 124 places, 224 transitions, 3101 flow [2023-11-19 07:34:20,568 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} [2023-11-19 07:34:20,569 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-19 07:34:20,569 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 224 transitions, 3101 flow [2023-11-19 07:34:20,570 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) [2023-11-19 07:34:20,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:20,571 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] [2023-11-19 07:34:20,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:34:20,571 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)] === [2023-11-19 07:34:20,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash -520440946, now seen corresponding path program 1 times [2023-11-19 07:34:20,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548997145] [2023-11-19 07:34:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:20,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548997145] [2023-11-19 07:34:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548997145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:20,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:20,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116188864] [2023-11-19 07:34:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:20,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:20,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:20,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:21,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 241 [2023-11-19 07:34:21,112 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) [2023-11-19 07:34:21,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:21,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 241 [2023-11-19 07:34:21,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:21,726 INFO L124 PetriNetUnfolderBase]: 493/1419 cut-off events. [2023-11-19 07:34:21,726 INFO L125 PetriNetUnfolderBase]: For 10362/10372 co-relation queries the response was YES. [2023-11-19 07:34:21,736 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. [2023-11-19 07:34:21,751 INFO L140 encePairwiseOnDemand]: 232/241 looper letters, 134 selfloop transitions, 51 changer transitions 93/287 dead transitions. [2023-11-19 07:34:21,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 287 transitions, 4350 flow [2023-11-19 07:34:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 686 transitions. [2023-11-19 07:34:21,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47441217150760717 [2023-11-19 07:34:21,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 686 transitions. [2023-11-19 07:34:21,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 686 transitions. [2023-11-19 07:34:21,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:21,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 686 transitions. [2023-11-19 07:34:21,760 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) [2023-11-19 07:34:21,773 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) [2023-11-19 07:34:21,783 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) [2023-11-19 07:34:21,784 INFO L175 Difference]: Start difference. First operand has 124 places, 224 transitions, 3101 flow. Second operand 6 states and 686 transitions. [2023-11-19 07:34:21,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 287 transitions, 4350 flow [2023-11-19 07:34:21,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 287 transitions, 4124 flow, removed 54 selfloop flow, removed 6 redundant places. [2023-11-19 07:34:21,854 INFO L231 Difference]: Finished difference. Result has 124 places, 190 transitions, 2329 flow [2023-11-19 07:34:21,855 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} [2023-11-19 07:34:21,856 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-19 07:34:21,856 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 190 transitions, 2329 flow [2023-11-19 07:34:21,857 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) [2023-11-19 07:34:21,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:21,857 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] [2023-11-19 07:34:21,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:34:21,857 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)] === [2023-11-19 07:34:21,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:21,858 INFO L85 PathProgramCache]: Analyzing trace with hash -824313288, now seen corresponding path program 1 times [2023-11-19 07:34:21,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:21,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671157442] [2023-11-19 07:34:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:22,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:22,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671157442] [2023-11-19 07:34:22,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671157442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:22,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:22,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:34:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596112365] [2023-11-19 07:34:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:22,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:34:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:22,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:34:22,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:34:23,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 241 [2023-11-19 07:34:23,810 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) [2023-11-19 07:34:23,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:23,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 241 [2023-11-19 07:34:23,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:24,238 INFO L124 PetriNetUnfolderBase]: 172/709 cut-off events. [2023-11-19 07:34:24,238 INFO L125 PetriNetUnfolderBase]: For 4471/4541 co-relation queries the response was YES. [2023-11-19 07:34:24,244 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. [2023-11-19 07:34:24,252 INFO L140 encePairwiseOnDemand]: 230/241 looper letters, 35 selfloop transitions, 14 changer transitions 9/206 dead transitions. [2023-11-19 07:34:24,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 206 transitions, 2416 flow [2023-11-19 07:34:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:34:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:34:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1350 transitions. [2023-11-19 07:34:24,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5092417955488495 [2023-11-19 07:34:24,261 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1350 transitions. [2023-11-19 07:34:24,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1350 transitions. [2023-11-19 07:34:24,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:24,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1350 transitions. [2023-11-19 07:34:24,268 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) [2023-11-19 07:34:24,274 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) [2023-11-19 07:34:24,275 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) [2023-11-19 07:34:24,275 INFO L175 Difference]: Start difference. First operand has 124 places, 190 transitions, 2329 flow. Second operand 11 states and 1350 transitions. [2023-11-19 07:34:24,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 206 transitions, 2416 flow [2023-11-19 07:34:24,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 206 transitions, 2053 flow, removed 86 selfloop flow, removed 7 redundant places. [2023-11-19 07:34:24,316 INFO L231 Difference]: Finished difference. Result has 127 places, 185 transitions, 1921 flow [2023-11-19 07:34:24,317 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} [2023-11-19 07:34:24,318 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 70 predicate places. [2023-11-19 07:34:24,318 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 185 transitions, 1921 flow [2023-11-19 07:34:24,319 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) [2023-11-19 07:34:24,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:24,319 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] [2023-11-19 07:34:24,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:34:24,319 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)] === [2023-11-19 07:34:24,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:24,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2117481104, now seen corresponding path program 2 times [2023-11-19 07:34:24,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:24,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163189159] [2023-11-19 07:34:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:24,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163189159] [2023-11-19 07:34:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163189159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:24,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:24,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:34:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249074980] [2023-11-19 07:34:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:24,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:34:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:24,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:34:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:25,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:34:25,542 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) [2023-11-19 07:34:25,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:25,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:34:25,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:25,981 INFO L124 PetriNetUnfolderBase]: 323/910 cut-off events. [2023-11-19 07:34:25,981 INFO L125 PetriNetUnfolderBase]: For 5738/5738 co-relation queries the response was YES. [2023-11-19 07:34:25,988 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. [2023-11-19 07:34:25,990 INFO L140 encePairwiseOnDemand]: 233/241 looper letters, 0 selfloop transitions, 0 changer transitions 232/232 dead transitions. [2023-11-19 07:34:25,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 232 transitions, 2779 flow [2023-11-19 07:34:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:34:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:34:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 945 transitions. [2023-11-19 07:34:25,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43568464730290457 [2023-11-19 07:34:25,995 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 945 transitions. [2023-11-19 07:34:25,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 945 transitions. [2023-11-19 07:34:25,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:25,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 945 transitions. [2023-11-19 07:34:25,999 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) [2023-11-19 07:34:26,003 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) [2023-11-19 07:34:26,004 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) [2023-11-19 07:34:26,004 INFO L175 Difference]: Start difference. First operand has 127 places, 185 transitions, 1921 flow. Second operand 9 states and 945 transitions. [2023-11-19 07:34:26,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 232 transitions, 2779 flow [2023-11-19 07:34:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 232 transitions, 2671 flow, removed 3 selfloop flow, removed 15 redundant places. [2023-11-19 07:34:26,039 INFO L231 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2023-11-19 07:34:26,039 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} [2023-11-19 07:34:26,040 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 61 predicate places. [2023-11-19 07:34:26,040 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2023-11-19 07:34:26,041 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) [2023-11-19 07:34:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-19 07:34:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-19 07:34:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-19 07:34:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-19 07:34:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-19 07:34:26,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-19 07:34:26,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:34:26,046 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:26,052 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:34:26,053 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:34:26,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:26 BasicIcfg [2023-11-19 07:34:26,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:34:26,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:34:26,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:34:26,058 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:34:26,059 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:54" (3/4) ... [2023-11-19 07:34:26,060 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:34:26,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 07:34:26,072 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 07:34:26,072 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:34:26,073 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:34:26,073 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:34:26,182 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:34:26,183 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:34:26,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:34:26,184 INFO L158 Benchmark]: Toolchain (without parser) took 33044.24ms. Allocated memory was 142.6MB in the beginning and 413.1MB in the end (delta: 270.5MB). Free memory was 101.8MB in the beginning and 207.2MB in the end (delta: -105.4MB). Peak memory consumption was 166.9MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,184 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:34:26,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.84ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 81.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.74ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 79.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,185 INFO L158 Benchmark]: Boogie Preprocessor took 47.11ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,186 INFO L158 Benchmark]: RCFGBuilder took 703.63ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 58.7MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,186 INFO L158 Benchmark]: TraceAbstraction took 31177.36ms. Allocated memory was 142.6MB in the beginning and 413.1MB in the end (delta: 270.5MB). Free memory was 58.2MB in the beginning and 211.4MB in the end (delta: -153.2MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,187 INFO L158 Benchmark]: Witness Printer took 125.28ms. Allocated memory is still 413.1MB. Free memory was 211.4MB in the beginning and 207.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:34:26,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 897.84ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 81.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.74ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 79.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.11ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 703.63ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 58.7MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 31177.36ms. Allocated memory was 142.6MB in the beginning and 413.1MB in the end (delta: 270.5MB). Free memory was 58.2MB in the beginning and 211.4MB in the end (delta: -153.2MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. * Witness Printer took 125.28ms. Allocated memory is still 413.1MB. Free memory was 211.4MB in the beginning and 207.2MB 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: 4.9s, 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: 30.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4196 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3247 mSDsluCounter, 1422 SdHoareTripleChecker+Invalid, 11.0s 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, 1.8s 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, 0.2s SatisfiabilityAnalysisTime, 6.7s 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! [2023-11-19 07:34:26,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70590387-fea8-46c3-9c3c-28b81828681d/bin/uautomizer-verify-uCwYo4JHxu/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