./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya --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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:44:08,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:44:08,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:44:08,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:44:08,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:44:08,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:44:08,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:44:08,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:44:08,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:44:08,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:44:08,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:44:08,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:44:08,860 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:44:08,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:44:08,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:44:08,862 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:44:08,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:44:08,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:44:08,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:44:08,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:44:08,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:44:08,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:44:08,865 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:44:08,865 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:44:08,866 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:44:08,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:44:08,867 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:44:08,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:44:08,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:44:08,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:44:08,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:44:08,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:44:08,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:44:08,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:44:08,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:44:08,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:44:08,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:44:08,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:44:08,870 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:44:08,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:44:08,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:44:08,871 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_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2023-11-29 01:44:09,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:44:09,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:44:09,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:44:09,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:44:09,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:44:09,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-29 01:44:11,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:44:12,172 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:44:12,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-29 01:44:12,188 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/data/8fae5395c/54b3cbb002b3457fafce11eb8de20ce3/FLAG7b30dc5d6 [2023-11-29 01:44:12,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/data/8fae5395c/54b3cbb002b3457fafce11eb8de20ce3 [2023-11-29 01:44:12,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:44:12,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:44:12,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:44:12,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:44:12,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:44:12,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8fe6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12, skipping insertion in model container [2023-11-29 01:44:12,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:44:12,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:44:12,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:44:12,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:44:12,662 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:44:12,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12 WrapperNode [2023-11-29 01:44:12,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:44:12,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:44:12,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:44:12,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:44:12,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,708 INFO L138 Inliner]: procedures = 171, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-11-29 01:44:12,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:44:12,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:44:12,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:44:12,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:44:12,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:44:12,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:44:12,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:44:12,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:44:12,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (1/1) ... [2023-11-29 01:44:12,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:44:12,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:12,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:44:12,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:44:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:44:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:44:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 01:44:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:44:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:44:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 01:44:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 01:44:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:44:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:44:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 01:44:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:44:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:44:12,813 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:44:12,949 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:44:12,951 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:44:13,266 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:44:13,297 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:44:13,297 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-29 01:44:13,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:44:13 BoogieIcfgContainer [2023-11-29 01:44:13,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:44:13,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:44:13,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:44:13,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:44:13,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:44:12" (1/3) ... [2023-11-29 01:44:13,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584c4282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:44:13, skipping insertion in model container [2023-11-29 01:44:13,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:44:12" (2/3) ... [2023-11-29 01:44:13,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584c4282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:44:13, skipping insertion in model container [2023-11-29 01:44:13,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:44:13" (3/3) ... [2023-11-29 01:44:13,308 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-11-29 01:44:13,316 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:44:13,327 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:44:13,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 01:44:13,327 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:44:13,393 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 01:44:13,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 156 transitions, 319 flow [2023-11-29 01:44:13,491 INFO L124 PetriNetUnfolderBase]: 10/155 cut-off events. [2023-11-29 01:44:13,491 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 01:44:13,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 155 events. 10/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 337 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2023-11-29 01:44:13,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 156 transitions, 319 flow [2023-11-29 01:44:13,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 145 transitions, 293 flow [2023-11-29 01:44:13,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:44:13,518 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;@7b5ef91d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:44:13,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 01:44:13,540 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:44:13,540 INFO L124 PetriNetUnfolderBase]: 2/85 cut-off events. [2023-11-29 01:44:13,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:44:13,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:13,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:13,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:13,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash -270624798, now seen corresponding path program 1 times [2023-11-29 01:44:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:13,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763098329] [2023-11-29 01:44:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:13,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:14,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763098329] [2023-11-29 01:44:14,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763098329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:14,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:14,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:14,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805171456] [2023-11-29 01:44:14,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:14,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:14,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:44:14,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 156 [2023-11-29 01:44:14,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 145 transitions, 293 flow. Second operand has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 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) [2023-11-29 01:44:14,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:14,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 156 [2023-11-29 01:44:14,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:15,116 INFO L124 PetriNetUnfolderBase]: 202/1105 cut-off events. [2023-11-29 01:44:15,116 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 01:44:15,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1105 events. 202/1105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6891 event pairs, 32 based on Foata normal form. 143/1164 useless extension candidates. Maximal degree in co-relation 1513. Up to 292 conditions per place. [2023-11-29 01:44:15,128 INFO L140 encePairwiseOnDemand]: 132/156 looper letters, 52 selfloop transitions, 37 changer transitions 0/194 dead transitions. [2023-11-29 01:44:15,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 194 transitions, 569 flow [2023-11-29 01:44:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2023-11-29 01:44:15,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8728632478632479 [2023-11-29 01:44:15,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 817 transitions. [2023-11-29 01:44:15,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 817 transitions. [2023-11-29 01:44:15,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:15,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 817 transitions. [2023-11-29 01:44:15,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 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) [2023-11-29 01:44:15,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:15,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:15,168 INFO L175 Difference]: Start difference. First operand has 139 places, 145 transitions, 293 flow. Second operand 6 states and 817 transitions. [2023-11-29 01:44:15,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 194 transitions, 569 flow [2023-11-29 01:44:15,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 194 transitions, 568 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:44:15,178 INFO L231 Difference]: Finished difference. Result has 145 places, 168 transitions, 512 flow [2023-11-29 01:44:15,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=145, PETRI_TRANSITIONS=168} [2023-11-29 01:44:15,184 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2023-11-29 01:44:15,184 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 168 transitions, 512 flow [2023-11-29 01:44:15,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 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) [2023-11-29 01:44:15,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:15,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:15,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:44:15,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:15,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1031543617, now seen corresponding path program 1 times [2023-11-29 01:44:15,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:15,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792443026] [2023-11-29 01:44:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:15,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:15,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:15,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792443026] [2023-11-29 01:44:15,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792443026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:15,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:15,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114843836] [2023-11-29 01:44:15,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:15,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:15,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:15,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:44:15,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 156 [2023-11-29 01:44:15,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 168 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 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) [2023-11-29 01:44:15,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:15,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 156 [2023-11-29 01:44:15,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:16,070 INFO L124 PetriNetUnfolderBase]: 211/1090 cut-off events. [2023-11-29 01:44:16,070 INFO L125 PetriNetUnfolderBase]: For 184/190 co-relation queries the response was YES. [2023-11-29 01:44:16,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1865 conditions, 1090 events. 211/1090 cut-off events. For 184/190 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6987 event pairs, 76 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1816. Up to 318 conditions per place. [2023-11-29 01:44:16,078 INFO L140 encePairwiseOnDemand]: 144/156 looper letters, 62 selfloop transitions, 18 changer transitions 0/182 dead transitions. [2023-11-29 01:44:16,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 182 transitions, 700 flow [2023-11-29 01:44:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 710 transitions. [2023-11-29 01:44:16,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7585470085470085 [2023-11-29 01:44:16,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 710 transitions. [2023-11-29 01:44:16,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 710 transitions. [2023-11-29 01:44:16,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:16,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 710 transitions. [2023-11-29 01:44:16,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.33333333333333) internal successors, (710), 6 states have internal predecessors, (710), 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) [2023-11-29 01:44:16,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:16,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:16,087 INFO L175 Difference]: Start difference. First operand has 145 places, 168 transitions, 512 flow. Second operand 6 states and 710 transitions. [2023-11-29 01:44:16,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 182 transitions, 700 flow [2023-11-29 01:44:16,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 182 transitions, 700 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:44:16,095 INFO L231 Difference]: Finished difference. Result has 148 places, 166 transitions, 544 flow [2023-11-29 01:44:16,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=544, PETRI_PLACES=148, PETRI_TRANSITIONS=166} [2023-11-29 01:44:16,096 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 9 predicate places. [2023-11-29 01:44:16,096 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 166 transitions, 544 flow [2023-11-29 01:44:16,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 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) [2023-11-29 01:44:16,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:16,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:16,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:44:16,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:16,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2139031496, now seen corresponding path program 1 times [2023-11-29 01:44:16,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:16,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8155147] [2023-11-29 01:44:16,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:16,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:16,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:16,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8155147] [2023-11-29 01:44:16,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8155147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:16,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:16,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625223531] [2023-11-29 01:44:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:16,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:16,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:16,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:16,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:44:16,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 156 [2023-11-29 01:44:16,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 166 transitions, 544 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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) [2023-11-29 01:44:16,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:16,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 156 [2023-11-29 01:44:16,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:17,014 INFO L124 PetriNetUnfolderBase]: 622/2215 cut-off events. [2023-11-29 01:44:17,014 INFO L125 PetriNetUnfolderBase]: For 693/695 co-relation queries the response was YES. [2023-11-29 01:44:17,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 2215 events. 622/2215 cut-off events. For 693/695 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 15269 event pairs, 346 based on Foata normal form. 0/2083 useless extension candidates. Maximal degree in co-relation 4379. Up to 1178 conditions per place. [2023-11-29 01:44:17,031 INFO L140 encePairwiseOnDemand]: 141/156 looper letters, 89 selfloop transitions, 48 changer transitions 0/225 dead transitions. [2023-11-29 01:44:17,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 225 transitions, 1006 flow [2023-11-29 01:44:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 703 transitions. [2023-11-29 01:44:17,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7510683760683761 [2023-11-29 01:44:17,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 703 transitions. [2023-11-29 01:44:17,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 703 transitions. [2023-11-29 01:44:17,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:17,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 703 transitions. [2023-11-29 01:44:17,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2023-11-29 01:44:17,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:17,042 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:17,042 INFO L175 Difference]: Start difference. First operand has 148 places, 166 transitions, 544 flow. Second operand 6 states and 703 transitions. [2023-11-29 01:44:17,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 225 transitions, 1006 flow [2023-11-29 01:44:17,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 225 transitions, 970 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:44:17,053 INFO L231 Difference]: Finished difference. Result has 153 places, 209 transitions, 896 flow [2023-11-29 01:44:17,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=153, PETRI_TRANSITIONS=209} [2023-11-29 01:44:17,054 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 14 predicate places. [2023-11-29 01:44:17,054 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 209 transitions, 896 flow [2023-11-29 01:44:17,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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) [2023-11-29 01:44:17,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:17,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:17,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:44:17,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:17,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1187267943, now seen corresponding path program 1 times [2023-11-29 01:44:17,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:17,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809507602] [2023-11-29 01:44:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:17,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:17,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:17,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809507602] [2023-11-29 01:44:17,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809507602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:17,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:17,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:17,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769559099] [2023-11-29 01:44:17,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:17,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:44:17,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:17,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:44:17,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:44:17,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 156 [2023-11-29 01:44:17,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 209 transitions, 896 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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) [2023-11-29 01:44:17,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:17,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 156 [2023-11-29 01:44:17,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:17,371 INFO L124 PetriNetUnfolderBase]: 39/320 cut-off events. [2023-11-29 01:44:17,371 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-11-29 01:44:17,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 320 events. 39/320 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 818 event pairs, 4 based on Foata normal form. 8/312 useless extension candidates. Maximal degree in co-relation 537. Up to 56 conditions per place. [2023-11-29 01:44:17,374 INFO L140 encePairwiseOnDemand]: 150/156 looper letters, 7 selfloop transitions, 6 changer transitions 3/151 dead transitions. [2023-11-29 01:44:17,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 494 flow [2023-11-29 01:44:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:44:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 01:44:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 670 transitions. [2023-11-29 01:44:17,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8589743589743589 [2023-11-29 01:44:17,377 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 670 transitions. [2023-11-29 01:44:17,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 670 transitions. [2023-11-29 01:44:17,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:17,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 670 transitions. [2023-11-29 01:44:17,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-11-29 01:44:17,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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) [2023-11-29 01:44:17,382 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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) [2023-11-29 01:44:17,383 INFO L175 Difference]: Start difference. First operand has 153 places, 209 transitions, 896 flow. Second operand 5 states and 670 transitions. [2023-11-29 01:44:17,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 494 flow [2023-11-29 01:44:17,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 151 transitions, 450 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-11-29 01:44:17,388 INFO L231 Difference]: Finished difference. Result has 149 places, 148 transitions, 430 flow [2023-11-29 01:44:17,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=149, PETRI_TRANSITIONS=148} [2023-11-29 01:44:17,390 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 10 predicate places. [2023-11-29 01:44:17,390 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 148 transitions, 430 flow [2023-11-29 01:44:17,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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) [2023-11-29 01:44:17,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:17,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:17,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:44:17,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:17,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:17,392 INFO L85 PathProgramCache]: Analyzing trace with hash 751094007, now seen corresponding path program 1 times [2023-11-29 01:44:17,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:17,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835119156] [2023-11-29 01:44:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:17,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:17,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:17,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835119156] [2023-11-29 01:44:17,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835119156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:17,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:17,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507367177] [2023-11-29 01:44:17,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:17,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:17,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:17,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:44:18,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 156 [2023-11-29 01:44:18,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 148 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2023-11-29 01:44:18,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:18,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 156 [2023-11-29 01:44:18,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:18,319 INFO L124 PetriNetUnfolderBase]: 159/699 cut-off events. [2023-11-29 01:44:18,319 INFO L125 PetriNetUnfolderBase]: For 207/233 co-relation queries the response was YES. [2023-11-29 01:44:18,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 699 events. 159/699 cut-off events. For 207/233 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3130 event pairs, 8 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 1378. Up to 237 conditions per place. [2023-11-29 01:44:18,324 INFO L140 encePairwiseOnDemand]: 142/156 looper letters, 58 selfloop transitions, 47 changer transitions 8/214 dead transitions. [2023-11-29 01:44:18,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 214 transitions, 886 flow [2023-11-29 01:44:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-11-29 01:44:18,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8311965811965812 [2023-11-29 01:44:18,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-11-29 01:44:18,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-11-29 01:44:18,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:18,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-11-29 01:44:18,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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) [2023-11-29 01:44:18,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:18,337 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:18,337 INFO L175 Difference]: Start difference. First operand has 149 places, 148 transitions, 430 flow. Second operand 6 states and 778 transitions. [2023-11-29 01:44:18,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 214 transitions, 886 flow [2023-11-29 01:44:18,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 214 transitions, 865 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 01:44:18,345 INFO L231 Difference]: Finished difference. Result has 152 places, 190 transitions, 809 flow [2023-11-29 01:44:18,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=809, PETRI_PLACES=152, PETRI_TRANSITIONS=190} [2023-11-29 01:44:18,346 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 13 predicate places. [2023-11-29 01:44:18,347 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 190 transitions, 809 flow [2023-11-29 01:44:18,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2023-11-29 01:44:18,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:18,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:18,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:44:18,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:18,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1035828837, now seen corresponding path program 1 times [2023-11-29 01:44:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:18,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779972046] [2023-11-29 01:44:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:18,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779972046] [2023-11-29 01:44:18,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779972046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:18,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:18,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:44:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356915447] [2023-11-29 01:44:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:18,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:44:18,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 156 [2023-11-29 01:44:18,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 190 transitions, 809 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 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) [2023-11-29 01:44:18,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:18,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 156 [2023-11-29 01:44:18,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:19,167 INFO L124 PetriNetUnfolderBase]: 252/950 cut-off events. [2023-11-29 01:44:19,167 INFO L125 PetriNetUnfolderBase]: For 826/844 co-relation queries the response was YES. [2023-11-29 01:44:19,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2614 conditions, 950 events. 252/950 cut-off events. For 826/844 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4475 event pairs, 86 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 2558. Up to 556 conditions per place. [2023-11-29 01:44:19,173 INFO L140 encePairwiseOnDemand]: 145/156 looper letters, 96 selfloop transitions, 29 changer transitions 7/217 dead transitions. [2023-11-29 01:44:19,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 217 transitions, 1235 flow [2023-11-29 01:44:19,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 671 transitions. [2023-11-29 01:44:19,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7168803418803419 [2023-11-29 01:44:19,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 671 transitions. [2023-11-29 01:44:19,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 671 transitions. [2023-11-29 01:44:19,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:19,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 671 transitions. [2023-11-29 01:44:19,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.83333333333333) internal successors, (671), 6 states have internal predecessors, (671), 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) [2023-11-29 01:44:19,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:19,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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) [2023-11-29 01:44:19,182 INFO L175 Difference]: Start difference. First operand has 152 places, 190 transitions, 809 flow. Second operand 6 states and 671 transitions. [2023-11-29 01:44:19,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 217 transitions, 1235 flow [2023-11-29 01:44:19,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 217 transitions, 1217 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 01:44:19,195 INFO L231 Difference]: Finished difference. Result has 162 places, 210 transitions, 1045 flow [2023-11-29 01:44:19,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1045, PETRI_PLACES=162, PETRI_TRANSITIONS=210} [2023-11-29 01:44:19,196 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 23 predicate places. [2023-11-29 01:44:19,196 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 210 transitions, 1045 flow [2023-11-29 01:44:19,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 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) [2023-11-29 01:44:19,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:19,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:19,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:44:19,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:19,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash 632519757, now seen corresponding path program 1 times [2023-11-29 01:44:19,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:19,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448131764] [2023-11-29 01:44:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:19,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448131764] [2023-11-29 01:44:19,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448131764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:19,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:19,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:44:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135866152] [2023-11-29 01:44:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:19,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:44:19,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:19,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:44:19,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:44:20,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 156 [2023-11-29 01:44:20,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 210 transitions, 1045 flow. Second operand has 12 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 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) [2023-11-29 01:44:20,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:20,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 156 [2023-11-29 01:44:20,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:20,823 INFO L124 PetriNetUnfolderBase]: 255/923 cut-off events. [2023-11-29 01:44:20,823 INFO L125 PetriNetUnfolderBase]: For 1533/1543 co-relation queries the response was YES. [2023-11-29 01:44:20,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 923 events. 255/923 cut-off events. For 1533/1543 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4121 event pairs, 42 based on Foata normal form. 9/929 useless extension candidates. Maximal degree in co-relation 2790. Up to 416 conditions per place. [2023-11-29 01:44:20,831 INFO L140 encePairwiseOnDemand]: 145/156 looper letters, 145 selfloop transitions, 30 changer transitions 0/256 dead transitions. [2023-11-29 01:44:20,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 256 transitions, 1719 flow [2023-11-29 01:44:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:44:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:44:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1099 transitions. [2023-11-29 01:44:20,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6404428904428905 [2023-11-29 01:44:20,835 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1099 transitions. [2023-11-29 01:44:20,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1099 transitions. [2023-11-29 01:44:20,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:20,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1099 transitions. [2023-11-29 01:44:20,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 99.9090909090909) internal successors, (1099), 11 states have internal predecessors, (1099), 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) [2023-11-29 01:44:20,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:20,844 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:20,844 INFO L175 Difference]: Start difference. First operand has 162 places, 210 transitions, 1045 flow. Second operand 11 states and 1099 transitions. [2023-11-29 01:44:20,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 256 transitions, 1719 flow [2023-11-29 01:44:20,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 256 transitions, 1655 flow, removed 28 selfloop flow, removed 1 redundant places. [2023-11-29 01:44:20,861 INFO L231 Difference]: Finished difference. Result has 170 places, 209 transitions, 1039 flow [2023-11-29 01:44:20,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1039, PETRI_PLACES=170, PETRI_TRANSITIONS=209} [2023-11-29 01:44:20,862 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 31 predicate places. [2023-11-29 01:44:20,862 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 209 transitions, 1039 flow [2023-11-29 01:44:20,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 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) [2023-11-29 01:44:20,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:20,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:44:20,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:20,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1314671840, now seen corresponding path program 1 times [2023-11-29 01:44:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:20,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137496909] [2023-11-29 01:44:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:21,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:21,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137496909] [2023-11-29 01:44:21,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137496909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:21,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:21,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:21,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899822907] [2023-11-29 01:44:21,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:21,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:21,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:22,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:22,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 209 transitions, 1039 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:22,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:22,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:22,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:23,182 INFO L124 PetriNetUnfolderBase]: 234/985 cut-off events. [2023-11-29 01:44:23,182 INFO L125 PetriNetUnfolderBase]: For 1419/1546 co-relation queries the response was YES. [2023-11-29 01:44:23,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2934 conditions, 985 events. 234/985 cut-off events. For 1419/1546 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4868 event pairs, 21 based on Foata normal form. 52/1023 useless extension candidates. Maximal degree in co-relation 2867. Up to 300 conditions per place. [2023-11-29 01:44:23,189 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 89 selfloop transitions, 55 changer transitions 29/272 dead transitions. [2023-11-29 01:44:23,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 272 transitions, 1710 flow [2023-11-29 01:44:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1428 transitions. [2023-11-29 01:44:23,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7628205128205128 [2023-11-29 01:44:23,195 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1428 transitions. [2023-11-29 01:44:23,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1428 transitions. [2023-11-29 01:44:23,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:23,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1428 transitions. [2023-11-29 01:44:23,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 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) [2023-11-29 01:44:23,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:23,206 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:23,206 INFO L175 Difference]: Start difference. First operand has 170 places, 209 transitions, 1039 flow. Second operand 12 states and 1428 transitions. [2023-11-29 01:44:23,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 272 transitions, 1710 flow [2023-11-29 01:44:23,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 272 transitions, 1624 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-29 01:44:23,221 INFO L231 Difference]: Finished difference. Result has 178 places, 217 transitions, 1302 flow [2023-11-29 01:44:23,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1302, PETRI_PLACES=178, PETRI_TRANSITIONS=217} [2023-11-29 01:44:23,222 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 39 predicate places. [2023-11-29 01:44:23,223 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 217 transitions, 1302 flow [2023-11-29 01:44:23,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:23,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:23,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:23,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:44:23,224 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:23,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2032101030, now seen corresponding path program 2 times [2023-11-29 01:44:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000260159] [2023-11-29 01:44:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:23,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:23,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000260159] [2023-11-29 01:44:23,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000260159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:23,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:23,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:23,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885383851] [2023-11-29 01:44:23,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:23,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:23,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:23,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:24,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:24,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 217 transitions, 1302 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:24,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:24,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:24,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:25,314 INFO L124 PetriNetUnfolderBase]: 319/1168 cut-off events. [2023-11-29 01:44:25,315 INFO L125 PetriNetUnfolderBase]: For 2774/2908 co-relation queries the response was YES. [2023-11-29 01:44:25,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3976 conditions, 1168 events. 319/1168 cut-off events. For 2774/2908 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6066 event pairs, 16 based on Foata normal form. 92/1256 useless extension candidates. Maximal degree in co-relation 3902. Up to 243 conditions per place. [2023-11-29 01:44:25,322 INFO L140 encePairwiseOnDemand]: 145/156 looper letters, 172 selfloop transitions, 51 changer transitions 24/346 dead transitions. [2023-11-29 01:44:25,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 346 transitions, 2664 flow [2023-11-29 01:44:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1416 transitions. [2023-11-29 01:44:25,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2023-11-29 01:44:25,328 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1416 transitions. [2023-11-29 01:44:25,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1416 transitions. [2023-11-29 01:44:25,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:25,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1416 transitions. [2023-11-29 01:44:25,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 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) [2023-11-29 01:44:25,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:25,336 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:25,336 INFO L175 Difference]: Start difference. First operand has 178 places, 217 transitions, 1302 flow. Second operand 12 states and 1416 transitions. [2023-11-29 01:44:25,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 346 transitions, 2664 flow [2023-11-29 01:44:25,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 346 transitions, 2655 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-29 01:44:25,353 INFO L231 Difference]: Finished difference. Result has 188 places, 248 transitions, 1792 flow [2023-11-29 01:44:25,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1792, PETRI_PLACES=188, PETRI_TRANSITIONS=248} [2023-11-29 01:44:25,354 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 49 predicate places. [2023-11-29 01:44:25,354 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 248 transitions, 1792 flow [2023-11-29 01:44:25,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:25,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:25,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:25,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:44:25,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:25,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:25,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2044804004, now seen corresponding path program 3 times [2023-11-29 01:44:25,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:25,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674457240] [2023-11-29 01:44:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:25,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:25,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674457240] [2023-11-29 01:44:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674457240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:25,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:25,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:25,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133202112] [2023-11-29 01:44:25,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:25,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:25,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:25,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:25,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:26,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:26,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 248 transitions, 1792 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:26,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:26,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:26,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:27,428 INFO L124 PetriNetUnfolderBase]: 340/1332 cut-off events. [2023-11-29 01:44:27,428 INFO L125 PetriNetUnfolderBase]: For 4954/5156 co-relation queries the response was YES. [2023-11-29 01:44:27,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5108 conditions, 1332 events. 340/1332 cut-off events. For 4954/5156 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7576 event pairs, 18 based on Foata normal form. 115/1437 useless extension candidates. Maximal degree in co-relation 5029. Up to 432 conditions per place. [2023-11-29 01:44:27,437 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 128 selfloop transitions, 58 changer transitions 48/333 dead transitions. [2023-11-29 01:44:27,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 333 transitions, 2772 flow [2023-11-29 01:44:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:27,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1439 transitions. [2023-11-29 01:44:27,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7686965811965812 [2023-11-29 01:44:27,442 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1439 transitions. [2023-11-29 01:44:27,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1439 transitions. [2023-11-29 01:44:27,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:27,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1439 transitions. [2023-11-29 01:44:27,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.91666666666667) internal successors, (1439), 12 states have internal predecessors, (1439), 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) [2023-11-29 01:44:27,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:27,450 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:27,450 INFO L175 Difference]: Start difference. First operand has 188 places, 248 transitions, 1792 flow. Second operand 12 states and 1439 transitions. [2023-11-29 01:44:27,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 333 transitions, 2772 flow [2023-11-29 01:44:27,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 333 transitions, 2760 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 01:44:27,481 INFO L231 Difference]: Finished difference. Result has 198 places, 248 transitions, 1979 flow [2023-11-29 01:44:27,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1783, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1979, PETRI_PLACES=198, PETRI_TRANSITIONS=248} [2023-11-29 01:44:27,482 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 59 predicate places. [2023-11-29 01:44:27,482 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 248 transitions, 1979 flow [2023-11-29 01:44:27,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:27,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:27,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:27,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:44:27,483 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:27,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1457444540, now seen corresponding path program 4 times [2023-11-29 01:44:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:27,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730554544] [2023-11-29 01:44:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:28,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:28,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730554544] [2023-11-29 01:44:28,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730554544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:28,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:28,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:28,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922809783] [2023-11-29 01:44:28,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:28,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:28,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:28,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:28,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 248 transitions, 1979 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:28,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:28,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:28,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:29,629 INFO L124 PetriNetUnfolderBase]: 309/1251 cut-off events. [2023-11-29 01:44:29,629 INFO L125 PetriNetUnfolderBase]: For 6154/6388 co-relation queries the response was YES. [2023-11-29 01:44:29,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5177 conditions, 1251 events. 309/1251 cut-off events. For 6154/6388 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7055 event pairs, 26 based on Foata normal form. 117/1353 useless extension candidates. Maximal degree in co-relation 5093. Up to 425 conditions per place. [2023-11-29 01:44:29,637 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 105 selfloop transitions, 65 changer transitions 27/296 dead transitions. [2023-11-29 01:44:29,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 296 transitions, 2611 flow [2023-11-29 01:44:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:44:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:44:29,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1310 transitions. [2023-11-29 01:44:29,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7634032634032634 [2023-11-29 01:44:29,643 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1310 transitions. [2023-11-29 01:44:29,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1310 transitions. [2023-11-29 01:44:29,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:29,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1310 transitions. [2023-11-29 01:44:29,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 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) [2023-11-29 01:44:29,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:29,651 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:29,651 INFO L175 Difference]: Start difference. First operand has 198 places, 248 transitions, 1979 flow. Second operand 11 states and 1310 transitions. [2023-11-29 01:44:29,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 296 transitions, 2611 flow [2023-11-29 01:44:29,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 296 transitions, 2555 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-29 01:44:29,684 INFO L231 Difference]: Finished difference. Result has 205 places, 248 transitions, 2078 flow [2023-11-29 01:44:29,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2078, PETRI_PLACES=205, PETRI_TRANSITIONS=248} [2023-11-29 01:44:29,685 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 66 predicate places. [2023-11-29 01:44:29,685 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 248 transitions, 2078 flow [2023-11-29 01:44:29,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:29,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:29,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:29,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:44:29,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:29,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1993543730, now seen corresponding path program 5 times [2023-11-29 01:44:29,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:29,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421800079] [2023-11-29 01:44:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:29,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:30,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421800079] [2023-11-29 01:44:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421800079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693246589] [2023-11-29 01:44:30,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:30,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:31,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:31,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 248 transitions, 2078 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:31,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:31,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:31,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:31,730 INFO L124 PetriNetUnfolderBase]: 459/1803 cut-off events. [2023-11-29 01:44:31,730 INFO L125 PetriNetUnfolderBase]: For 10981/11195 co-relation queries the response was YES. [2023-11-29 01:44:31,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7495 conditions, 1803 events. 459/1803 cut-off events. For 10981/11195 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 11481 event pairs, 39 based on Foata normal form. 77/1867 useless extension candidates. Maximal degree in co-relation 7408. Up to 414 conditions per place. [2023-11-29 01:44:31,743 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 201 selfloop transitions, 80 changer transitions 31/411 dead transitions. [2023-11-29 01:44:31,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 411 transitions, 4079 flow [2023-11-29 01:44:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:31,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1440 transitions. [2023-11-29 01:44:31,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2023-11-29 01:44:31,748 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1440 transitions. [2023-11-29 01:44:31,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1440 transitions. [2023-11-29 01:44:31,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:31,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1440 transitions. [2023-11-29 01:44:31,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 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) [2023-11-29 01:44:31,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:31,759 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:31,759 INFO L175 Difference]: Start difference. First operand has 205 places, 248 transitions, 2078 flow. Second operand 12 states and 1440 transitions. [2023-11-29 01:44:31,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 411 transitions, 4079 flow [2023-11-29 01:44:31,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 411 transitions, 3960 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-11-29 01:44:31,817 INFO L231 Difference]: Finished difference. Result has 211 places, 289 transitions, 2846 flow [2023-11-29 01:44:31,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1995, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2846, PETRI_PLACES=211, PETRI_TRANSITIONS=289} [2023-11-29 01:44:31,818 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 72 predicate places. [2023-11-29 01:44:31,818 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 289 transitions, 2846 flow [2023-11-29 01:44:31,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:31,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:31,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:31,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:44:31,820 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:31,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -685565158, now seen corresponding path program 6 times [2023-11-29 01:44:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:31,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371870934] [2023-11-29 01:44:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:32,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371870934] [2023-11-29 01:44:32,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371870934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:32,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625531438] [2023-11-29 01:44:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:32,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:33,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:33,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 289 transitions, 2846 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:33,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:33,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:33,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:34,037 INFO L124 PetriNetUnfolderBase]: 472/1884 cut-off events. [2023-11-29 01:44:34,037 INFO L125 PetriNetUnfolderBase]: For 15473/15733 co-relation queries the response was YES. [2023-11-29 01:44:34,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8257 conditions, 1884 events. 472/1884 cut-off events. For 15473/15733 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12472 event pairs, 47 based on Foata normal form. 148/2015 useless extension candidates. Maximal degree in co-relation 8165. Up to 673 conditions per place. [2023-11-29 01:44:34,051 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 148 selfloop transitions, 84 changer transitions 41/372 dead transitions. [2023-11-29 01:44:34,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 372 transitions, 3994 flow [2023-11-29 01:44:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:44:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:44:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1544 transitions. [2023-11-29 01:44:34,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7613412228796844 [2023-11-29 01:44:34,054 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1544 transitions. [2023-11-29 01:44:34,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1544 transitions. [2023-11-29 01:44:34,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:34,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1544 transitions. [2023-11-29 01:44:34,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.76923076923077) internal successors, (1544), 13 states have internal predecessors, (1544), 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) [2023-11-29 01:44:34,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:34,062 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:34,062 INFO L175 Difference]: Start difference. First operand has 211 places, 289 transitions, 2846 flow. Second operand 13 states and 1544 transitions. [2023-11-29 01:44:34,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 372 transitions, 3994 flow [2023-11-29 01:44:34,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 372 transitions, 3889 flow, removed 45 selfloop flow, removed 5 redundant places. [2023-11-29 01:44:34,132 INFO L231 Difference]: Finished difference. Result has 225 places, 296 transitions, 3197 flow [2023-11-29 01:44:34,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=2747, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3197, PETRI_PLACES=225, PETRI_TRANSITIONS=296} [2023-11-29 01:44:34,133 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 86 predicate places. [2023-11-29 01:44:34,133 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 296 transitions, 3197 flow [2023-11-29 01:44:34,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:34,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:34,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:34,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:44:34,134 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:34,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:34,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1277921802, now seen corresponding path program 7 times [2023-11-29 01:44:34,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:34,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653176085] [2023-11-29 01:44:34,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:34,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:34,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653176085] [2023-11-29 01:44:34,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653176085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:34,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:34,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:34,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113107341] [2023-11-29 01:44:34,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:34,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:34,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:34,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:35,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:35,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 296 transitions, 3197 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:35,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:35,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:35,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:35,935 INFO L124 PetriNetUnfolderBase]: 419/1783 cut-off events. [2023-11-29 01:44:35,935 INFO L125 PetriNetUnfolderBase]: For 17464/17702 co-relation queries the response was YES. [2023-11-29 01:44:35,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8068 conditions, 1783 events. 419/1783 cut-off events. For 17464/17702 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 11813 event pairs, 34 based on Foata normal form. 122/1895 useless extension candidates. Maximal degree in co-relation 7970. Up to 564 conditions per place. [2023-11-29 01:44:35,949 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 183 selfloop transitions, 81 changer transitions 38/401 dead transitions. [2023-11-29 01:44:35,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 401 transitions, 4611 flow [2023-11-29 01:44:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1437 transitions. [2023-11-29 01:44:35,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7676282051282052 [2023-11-29 01:44:35,952 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1437 transitions. [2023-11-29 01:44:35,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1437 transitions. [2023-11-29 01:44:35,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:35,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1437 transitions. [2023-11-29 01:44:35,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.75) internal successors, (1437), 12 states have internal predecessors, (1437), 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) [2023-11-29 01:44:35,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:35,959 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:35,959 INFO L175 Difference]: Start difference. First operand has 225 places, 296 transitions, 3197 flow. Second operand 12 states and 1437 transitions. [2023-11-29 01:44:35,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 401 transitions, 4611 flow [2023-11-29 01:44:36,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 401 transitions, 4416 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-11-29 01:44:36,048 INFO L231 Difference]: Finished difference. Result has 232 places, 315 transitions, 3571 flow [2023-11-29 01:44:36,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=3017, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3571, PETRI_PLACES=232, PETRI_TRANSITIONS=315} [2023-11-29 01:44:36,049 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 93 predicate places. [2023-11-29 01:44:36,049 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 315 transitions, 3571 flow [2023-11-29 01:44:36,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:36,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:36,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:36,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:44:36,050 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:36,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:36,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1941900996, now seen corresponding path program 8 times [2023-11-29 01:44:36,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:36,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153171623] [2023-11-29 01:44:36,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:36,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:36,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:36,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153171623] [2023-11-29 01:44:36,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153171623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:36,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:36,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350525741] [2023-11-29 01:44:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:36,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:37,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:37,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 315 transitions, 3571 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:37,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:37,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:37,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:38,462 INFO L124 PetriNetUnfolderBase]: 519/2230 cut-off events. [2023-11-29 01:44:38,462 INFO L125 PetriNetUnfolderBase]: For 27637/27922 co-relation queries the response was YES. [2023-11-29 01:44:38,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10112 conditions, 2230 events. 519/2230 cut-off events. For 27637/27922 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 16023 event pairs, 50 based on Foata normal form. 124/2343 useless extension candidates. Maximal degree in co-relation 10009. Up to 627 conditions per place. [2023-11-29 01:44:38,473 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 213 selfloop transitions, 99 changer transitions 27/438 dead transitions. [2023-11-29 01:44:38,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 438 transitions, 5397 flow [2023-11-29 01:44:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1435 transitions. [2023-11-29 01:44:38,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7665598290598291 [2023-11-29 01:44:38,476 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1435 transitions. [2023-11-29 01:44:38,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1435 transitions. [2023-11-29 01:44:38,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:38,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1435 transitions. [2023-11-29 01:44:38,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.58333333333333) internal successors, (1435), 12 states have internal predecessors, (1435), 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) [2023-11-29 01:44:38,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:38,482 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:38,482 INFO L175 Difference]: Start difference. First operand has 232 places, 315 transitions, 3571 flow. Second operand 12 states and 1435 transitions. [2023-11-29 01:44:38,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 438 transitions, 5397 flow [2023-11-29 01:44:38,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 438 transitions, 5257 flow, removed 46 selfloop flow, removed 6 redundant places. [2023-11-29 01:44:38,577 INFO L231 Difference]: Finished difference. Result has 243 places, 344 transitions, 4283 flow [2023-11-29 01:44:38,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=3444, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4283, PETRI_PLACES=243, PETRI_TRANSITIONS=344} [2023-11-29 01:44:38,577 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 104 predicate places. [2023-11-29 01:44:38,578 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 344 transitions, 4283 flow [2023-11-29 01:44:38,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:38,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:38,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:38,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:44:38,578 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:38,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash -278298470, now seen corresponding path program 9 times [2023-11-29 01:44:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335800392] [2023-11-29 01:44:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:38,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:38,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335800392] [2023-11-29 01:44:38,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335800392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:38,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:38,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:38,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039295384] [2023-11-29 01:44:38,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:38,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:38,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:38,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:39,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:39,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 344 transitions, 4283 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:39,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:39,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:39,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:40,858 INFO L124 PetriNetUnfolderBase]: 567/2464 cut-off events. [2023-11-29 01:44:40,858 INFO L125 PetriNetUnfolderBase]: For 36332/36686 co-relation queries the response was YES. [2023-11-29 01:44:40,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11669 conditions, 2464 events. 567/2464 cut-off events. For 36332/36686 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18371 event pairs, 63 based on Foata normal form. 126/2575 useless extension candidates. Maximal degree in co-relation 11561. Up to 454 conditions per place. [2023-11-29 01:44:40,871 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 235 selfloop transitions, 103 changer transitions 30/467 dead transitions. [2023-11-29 01:44:40,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 467 transitions, 6103 flow [2023-11-29 01:44:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1435 transitions. [2023-11-29 01:44:40,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7665598290598291 [2023-11-29 01:44:40,873 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1435 transitions. [2023-11-29 01:44:40,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1435 transitions. [2023-11-29 01:44:40,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:40,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1435 transitions. [2023-11-29 01:44:40,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.58333333333333) internal successors, (1435), 12 states have internal predecessors, (1435), 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) [2023-11-29 01:44:40,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:40,877 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:40,877 INFO L175 Difference]: Start difference. First operand has 243 places, 344 transitions, 4283 flow. Second operand 12 states and 1435 transitions. [2023-11-29 01:44:40,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 467 transitions, 6103 flow [2023-11-29 01:44:41,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 467 transitions, 5883 flow, removed 76 selfloop flow, removed 5 redundant places. [2023-11-29 01:44:41,031 INFO L231 Difference]: Finished difference. Result has 256 places, 370 transitions, 4939 flow [2023-11-29 01:44:41,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4071, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4939, PETRI_PLACES=256, PETRI_TRANSITIONS=370} [2023-11-29 01:44:41,032 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 117 predicate places. [2023-11-29 01:44:41,032 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 370 transitions, 4939 flow [2023-11-29 01:44:41,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:41,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:41,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:41,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:44:41,033 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:41,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1541238766, now seen corresponding path program 10 times [2023-11-29 01:44:41,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:41,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997540595] [2023-11-29 01:44:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:41,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:41,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997540595] [2023-11-29 01:44:41,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997540595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:41,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:41,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:41,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303012187] [2023-11-29 01:44:41,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:41,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:41,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:41,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:41,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:42,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:42,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 370 transitions, 4939 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:42,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:42,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:42,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:42,974 INFO L124 PetriNetUnfolderBase]: 564/2505 cut-off events. [2023-11-29 01:44:42,974 INFO L125 PetriNetUnfolderBase]: For 44708/45038 co-relation queries the response was YES. [2023-11-29 01:44:42,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12143 conditions, 2505 events. 564/2505 cut-off events. For 44708/45038 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18915 event pairs, 69 based on Foata normal form. 138/2625 useless extension candidates. Maximal degree in co-relation 12027. Up to 927 conditions per place. [2023-11-29 01:44:42,990 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 188 selfloop transitions, 97 changer transitions 30/414 dead transitions. [2023-11-29 01:44:42,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 414 transitions, 5832 flow [2023-11-29 01:44:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1413 transitions. [2023-11-29 01:44:43,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7548076923076923 [2023-11-29 01:44:43,022 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1413 transitions. [2023-11-29 01:44:43,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1413 transitions. [2023-11-29 01:44:43,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:43,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1413 transitions. [2023-11-29 01:44:43,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 117.75) internal successors, (1413), 12 states have internal predecessors, (1413), 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) [2023-11-29 01:44:43,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:43,028 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:43,028 INFO L175 Difference]: Start difference. First operand has 256 places, 370 transitions, 4939 flow. Second operand 12 states and 1413 transitions. [2023-11-29 01:44:43,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 414 transitions, 5832 flow [2023-11-29 01:44:43,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 414 transitions, 5599 flow, removed 114 selfloop flow, removed 3 redundant places. [2023-11-29 01:44:43,203 INFO L231 Difference]: Finished difference. Result has 268 places, 368 transitions, 4920 flow [2023-11-29 01:44:43,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4710, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4920, PETRI_PLACES=268, PETRI_TRANSITIONS=368} [2023-11-29 01:44:43,204 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 129 predicate places. [2023-11-29 01:44:43,204 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 368 transitions, 4920 flow [2023-11-29 01:44:43,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:43,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:43,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:43,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:44:43,204 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:43,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1092735348, now seen corresponding path program 11 times [2023-11-29 01:44:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:43,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953815453] [2023-11-29 01:44:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:43,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:43,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953815453] [2023-11-29 01:44:43,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953815453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:43,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:43,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:43,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549516742] [2023-11-29 01:44:43,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:43,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:43,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:43,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:43,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:44,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:44,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 368 transitions, 4920 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:44,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:44,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:44,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:45,538 INFO L124 PetriNetUnfolderBase]: 577/2594 cut-off events. [2023-11-29 01:44:45,538 INFO L125 PetriNetUnfolderBase]: For 50607/50873 co-relation queries the response was YES. [2023-11-29 01:44:45,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12741 conditions, 2594 events. 577/2594 cut-off events. For 50607/50873 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19944 event pairs, 72 based on Foata normal form. 90/2663 useless extension candidates. Maximal degree in co-relation 12620. Up to 922 conditions per place. [2023-11-29 01:44:45,554 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 205 selfloop transitions, 99 changer transitions 39/442 dead transitions. [2023-11-29 01:44:45,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 442 transitions, 6303 flow [2023-11-29 01:44:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:44:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:44:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1528 transitions. [2023-11-29 01:44:45,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7534516765285996 [2023-11-29 01:44:45,557 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1528 transitions. [2023-11-29 01:44:45,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1528 transitions. [2023-11-29 01:44:45,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:45,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1528 transitions. [2023-11-29 01:44:45,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.53846153846153) internal successors, (1528), 13 states have internal predecessors, (1528), 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) [2023-11-29 01:44:45,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:45,563 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:45,563 INFO L175 Difference]: Start difference. First operand has 268 places, 368 transitions, 4920 flow. Second operand 13 states and 1528 transitions. [2023-11-29 01:44:45,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 442 transitions, 6303 flow [2023-11-29 01:44:45,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 442 transitions, 6069 flow, removed 19 selfloop flow, removed 8 redundant places. [2023-11-29 01:44:45,770 INFO L231 Difference]: Finished difference. Result has 279 places, 376 transitions, 5308 flow [2023-11-29 01:44:45,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5308, PETRI_PLACES=279, PETRI_TRANSITIONS=376} [2023-11-29 01:44:45,771 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 140 predicate places. [2023-11-29 01:44:45,771 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 376 transitions, 5308 flow [2023-11-29 01:44:45,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:45,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:45,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:45,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:44:45,771 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:45,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1052807652, now seen corresponding path program 12 times [2023-11-29 01:44:45,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:45,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618782065] [2023-11-29 01:44:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:45,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:46,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618782065] [2023-11-29 01:44:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618782065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:46,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:46,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725338705] [2023-11-29 01:44:46,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:46,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:47,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:47,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 376 transitions, 5308 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:47,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:47,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:47,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:48,240 INFO L124 PetriNetUnfolderBase]: 524/2491 cut-off events. [2023-11-29 01:44:48,240 INFO L125 PetriNetUnfolderBase]: For 50684/50900 co-relation queries the response was YES. [2023-11-29 01:44:48,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12227 conditions, 2491 events. 524/2491 cut-off events. For 50684/50900 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19208 event pairs, 61 based on Foata normal form. 75/2548 useless extension candidates. Maximal degree in co-relation 12099. Up to 788 conditions per place. [2023-11-29 01:44:48,256 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 222 selfloop transitions, 107 changer transitions 35/463 dead transitions. [2023-11-29 01:44:48,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 463 transitions, 6788 flow [2023-11-29 01:44:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:44:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:44:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1428 transitions. [2023-11-29 01:44:48,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7628205128205128 [2023-11-29 01:44:48,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1428 transitions. [2023-11-29 01:44:48,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1428 transitions. [2023-11-29 01:44:48,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:48,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1428 transitions. [2023-11-29 01:44:48,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 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) [2023-11-29 01:44:48,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:48,261 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 156.0) internal successors, (2028), 13 states have internal predecessors, (2028), 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) [2023-11-29 01:44:48,261 INFO L175 Difference]: Start difference. First operand has 279 places, 376 transitions, 5308 flow. Second operand 12 states and 1428 transitions. [2023-11-29 01:44:48,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 463 transitions, 6788 flow [2023-11-29 01:44:48,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 463 transitions, 6456 flow, removed 70 selfloop flow, removed 7 redundant places. [2023-11-29 01:44:48,441 INFO L231 Difference]: Finished difference. Result has 288 places, 386 transitions, 5565 flow [2023-11-29 01:44:48,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=5008, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5565, PETRI_PLACES=288, PETRI_TRANSITIONS=386} [2023-11-29 01:44:48,442 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 149 predicate places. [2023-11-29 01:44:48,442 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 386 transitions, 5565 flow [2023-11-29 01:44:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:48,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:48,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:44:48,443 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:48,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 867414436, now seen corresponding path program 13 times [2023-11-29 01:44:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:48,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951242419] [2023-11-29 01:44:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:48,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:48,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951242419] [2023-11-29 01:44:48,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951242419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:48,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:48,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:48,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732006711] [2023-11-29 01:44:48,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:48,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:48,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:48,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:49,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 156 [2023-11-29 01:44:49,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 386 transitions, 5565 flow. Second operand has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:49,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:49,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 156 [2023-11-29 01:44:49,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:50,859 INFO L124 PetriNetUnfolderBase]: 485/2443 cut-off events. [2023-11-29 01:44:50,859 INFO L125 PetriNetUnfolderBase]: For 48402/48616 co-relation queries the response was YES. [2023-11-29 01:44:50,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11965 conditions, 2443 events. 485/2443 cut-off events. For 48402/48616 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19080 event pairs, 48 based on Foata normal form. 102/2532 useless extension candidates. Maximal degree in co-relation 11834. Up to 820 conditions per place. [2023-11-29 01:44:50,874 INFO L140 encePairwiseOnDemand]: 137/156 looper letters, 199 selfloop transitions, 109 changer transitions 46/445 dead transitions. [2023-11-29 01:44:50,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 445 transitions, 6609 flow [2023-11-29 01:44:50,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:44:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:44:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1532 transitions. [2023-11-29 01:44:50,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7554240631163708 [2023-11-29 01:44:50,876 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1532 transitions. [2023-11-29 01:44:50,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1532 transitions. [2023-11-29 01:44:50,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:50,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1532 transitions. [2023-11-29 01:44:50,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.84615384615384) internal successors, (1532), 13 states have internal predecessors, (1532), 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) [2023-11-29 01:44:50,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:50,879 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 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) [2023-11-29 01:44:50,879 INFO L175 Difference]: Start difference. First operand has 288 places, 386 transitions, 5565 flow. Second operand 13 states and 1532 transitions. [2023-11-29 01:44:50,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 445 transitions, 6609 flow [2023-11-29 01:44:51,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 445 transitions, 6297 flow, removed 92 selfloop flow, removed 15 redundant places. [2023-11-29 01:44:51,056 INFO L231 Difference]: Finished difference. Result has 285 places, 373 transitions, 5449 flow [2023-11-29 01:44:51,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=5236, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5449, PETRI_PLACES=285, PETRI_TRANSITIONS=373} [2023-11-29 01:44:51,056 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 146 predicate places. [2023-11-29 01:44:51,056 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 373 transitions, 5449 flow [2023-11-29 01:44:51,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.46153846153847) internal successors, (1436), 13 states have internal predecessors, (1436), 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) [2023-11-29 01:44:51,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:51,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:51,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 01:44:51,057 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-29 01:44:51,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:51,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1834851190, now seen corresponding path program 1 times [2023-11-29 01:44:51,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:51,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133034346] [2023-11-29 01:44:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:51,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:51,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:51,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133034346] [2023-11-29 01:44:51,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133034346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:51,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:51,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:44:51,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215224812] [2023-11-29 01:44:51,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:51,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:44:51,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:51,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:44:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:44:52,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 156 [2023-11-29 01:44:52,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 373 transitions, 5449 flow. Second operand has 13 states, 13 states have (on average 95.15384615384616) internal successors, (1237), 13 states have internal predecessors, (1237), 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) [2023-11-29 01:44:52,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:52,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 156 [2023-11-29 01:44:52,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:52,816 INFO L124 PetriNetUnfolderBase]: 515/2105 cut-off events. [2023-11-29 01:44:52,816 INFO L125 PetriNetUnfolderBase]: For 36837/36922 co-relation queries the response was YES. [2023-11-29 01:44:52,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11553 conditions, 2105 events. 515/2105 cut-off events. For 36837/36922 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14471 event pairs, 157 based on Foata normal form. 48/2140 useless extension candidates. Maximal degree in co-relation 11430. Up to 1018 conditions per place. [2023-11-29 01:44:52,825 INFO L140 encePairwiseOnDemand]: 145/156 looper letters, 0 selfloop transitions, 0 changer transitions 439/439 dead transitions. [2023-11-29 01:44:52,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 439 transitions, 6913 flow [2023-11-29 01:44:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:44:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:44:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1095 transitions. [2023-11-29 01:44:52,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6381118881118881 [2023-11-29 01:44:52,827 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1095 transitions. [2023-11-29 01:44:52,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1095 transitions. [2023-11-29 01:44:52,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:52,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1095 transitions. [2023-11-29 01:44:52,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 99.54545454545455) internal successors, (1095), 11 states have internal predecessors, (1095), 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) [2023-11-29 01:44:52,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:52,830 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 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) [2023-11-29 01:44:52,830 INFO L175 Difference]: Start difference. First operand has 285 places, 373 transitions, 5449 flow. Second operand 11 states and 1095 transitions. [2023-11-29 01:44:52,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 439 transitions, 6913 flow [2023-11-29 01:44:52,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 439 transitions, 6326 flow, removed 46 selfloop flow, removed 19 redundant places. [2023-11-29 01:44:52,956 INFO L231 Difference]: Finished difference. Result has 265 places, 0 transitions, 0 flow [2023-11-29 01:44:52,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4954, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=265, PETRI_TRANSITIONS=0} [2023-11-29 01:44:52,957 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 126 predicate places. [2023-11-29 01:44:52,957 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 0 transitions, 0 flow [2023-11-29 01:44:52,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.15384615384616) internal successors, (1237), 13 states have internal predecessors, (1237), 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) [2023-11-29 01:44:52,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-29 01:44:52,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-29 01:44:52,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-29 01:44:52,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-29 01:44:52,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:44:52,960 INFO L445 BasicCegarLoop]: Path program histogram: [13, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:52,965 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 01:44:52,965 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:44:52,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:44:52 BasicIcfg [2023-11-29 01:44:52,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:44:52,969 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:44:52,969 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:44:52,969 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:44:52,970 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:44:13" (3/4) ... [2023-11-29 01:44:52,971 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:44:52,974 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-29 01:44:52,977 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-29 01:44:52,977 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 01:44:52,977 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 01:44:52,978 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:44:53,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:44:53,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:44:53,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:44:53,043 INFO L158 Benchmark]: Toolchain (without parser) took 40836.66ms. Allocated memory was 146.8MB in the beginning and 635.4MB in the end (delta: 488.6MB). Free memory was 116.4MB in the beginning and 346.1MB in the end (delta: -229.7MB). Peak memory consumption was 259.6MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,043 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:44:53,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.44ms. Allocated memory is still 146.8MB. Free memory was 116.1MB in the beginning and 95.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.50ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 93.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,045 INFO L158 Benchmark]: Boogie Preprocessor took 36.11ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,045 INFO L158 Benchmark]: RCFGBuilder took 552.74ms. Allocated memory is still 146.8MB. Free memory was 91.2MB in the beginning and 112.1MB in the end (delta: -20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,045 INFO L158 Benchmark]: TraceAbstraction took 39667.33ms. Allocated memory was 146.8MB in the beginning and 635.4MB in the end (delta: 488.6MB). Free memory was 111.2MB in the beginning and 350.3MB in the end (delta: -239.1MB). Peak memory consumption was 497.6MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,046 INFO L158 Benchmark]: Witness Printer took 72.91ms. Allocated memory is still 635.4MB. Free memory was 350.3MB in the beginning and 346.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:44:53,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.44ms. Allocated memory is still 146.8MB. Free memory was 116.1MB in the beginning and 95.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.50ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 93.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.11ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.74ms. Allocated memory is still 146.8MB. Free memory was 91.2MB in the beginning and 112.1MB in the end (delta: -20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 39667.33ms. Allocated memory was 146.8MB in the beginning and 635.4MB in the end (delta: 488.6MB). Free memory was 111.2MB in the beginning and 350.3MB in the end (delta: -239.1MB). Peak memory consumption was 497.6MB. Max. memory is 16.1GB. * Witness Printer took 72.91ms. Allocated memory is still 635.4MB. Free memory was 350.3MB in the beginning and 346.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: 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, 207 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: 39.5s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8603 SdHoareTripleChecker+Valid, 18.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7201 mSDsluCounter, 9241 SdHoareTripleChecker+Invalid, 15.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8733 mSDsCounter, 1966 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29520 IncrementalHoareTripleChecker+Invalid, 31486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1966 mSolverCounterUnsat, 508 mSDtfsCounter, 29520 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 324 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5565occurred in iteration=19, InterpolantAutomatonStates: 215, 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, 9.1s InterpolantComputationTime, 1694 NumberOfCodeBlocks, 1694 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1673 ConstructedInterpolants, 0 QuantifiedInterpolants, 13433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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! [2023-11-29 01:44:53,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc66bfd8-acb2-454b-9ac4-61cb74277139/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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