./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.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_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/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_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/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_85c31048-f2d3-4086-86b5-319dc6ca5a3c/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 c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:36:58,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:36:58,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 20:36:58,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:36:58,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:36:58,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:36:58,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:36:58,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:36:58,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:36:58,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:36:58,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:36:58,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:36:58,784 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:36:58,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:36:58,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:36:58,786 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:36:58,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:36:58,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:36:58,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:36:58,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:36:58,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:36:58,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:36:58,790 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 20:36:58,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:36:58,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:36:58,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:36:58,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:36:58,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:36:58,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:36:58,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:36:58,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:36:58,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:36:58,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:36:58,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:36:58,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:36:58,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:36:58,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:36:58,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:36:58,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:36:58,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:36:58,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:36:58,796 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_85c31048-f2d3-4086-86b5-319dc6ca5a3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 [2023-11-28 20:36:59,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:36:59,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:36:59,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:36:59,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:36:59,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:36:59,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2023-11-28 20:37:01,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:37:02,204 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:37:02,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2023-11-28 20:37:02,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/data/6cd73766d/70b2550d745845cdac8af167540972c6/FLAG705ad936a [2023-11-28 20:37:02,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/data/6cd73766d/70b2550d745845cdac8af167540972c6 [2023-11-28 20:37:02,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:37:02,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:37:02,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:02,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:37:02,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:37:02,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:02,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4838db56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02, skipping insertion in model container [2023-11-28 20:37:02,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:02,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:37:02,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:02,841 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:37:02,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:02,993 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:37:02,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02 WrapperNode [2023-11-28 20:37:02,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:02,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:02,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:37:02,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:37:03,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,064 INFO L138 Inliner]: procedures = 371, calls = 32, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 245 [2023-11-28 20:37:03,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:03,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:37:03,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:37:03,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:37:03,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:37:03,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:37:03,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:37:03,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:37:03,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (1/1) ... [2023-11-28 20:37:03,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:37:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:03,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:37:03,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 20:37:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 20:37:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 20:37:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:37:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:37:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 20:37:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 20:37:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 20:37:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:37:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:37:03,199 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:37:03,370 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:37:03,372 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:37:03,868 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:37:03,896 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:37:03,896 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:37:03,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:03 BoogieIcfgContainer [2023-11-28 20:37:03,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:37:03,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:37:03,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:37:03,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:37:03,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:37:02" (1/3) ... [2023-11-28 20:37:03,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3d8412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:03, skipping insertion in model container [2023-11-28 20:37:03,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:02" (2/3) ... [2023-11-28 20:37:03,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3d8412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:03, skipping insertion in model container [2023-11-28 20:37:03,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:03" (3/3) ... [2023-11-28 20:37:03,907 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2023-11-28 20:37:03,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:37:03,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:37:03,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-28 20:37:03,929 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:37:04,022 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 20:37:04,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 284 transitions, 572 flow [2023-11-28 20:37:04,157 INFO L124 PetriNetUnfolderBase]: 6/283 cut-off events. [2023-11-28 20:37:04,157 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:37:04,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 283 events. 6/283 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 403 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2023-11-28 20:37:04,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 284 transitions, 572 flow [2023-11-28 20:37:04,171 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 283 transitions, 569 flow [2023-11-28 20:37:04,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:37:04,190 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;@f581832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:37:04,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-28 20:37:04,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:37:04,205 INFO L124 PetriNetUnfolderBase]: 4/71 cut-off events. [2023-11-28 20:37:04,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:37:04,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:04,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:04,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:04,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash 340414683, now seen corresponding path program 1 times [2023-11-28 20:37:04,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:04,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671507657] [2023-11-28 20:37:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:04,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:04,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:04,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671507657] [2023-11-28 20:37:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671507657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:04,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:37:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271313387] [2023-11-28 20:37:04,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:04,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:04,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:04,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:04,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 284 [2023-11-28 20:37:04,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 283 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:04,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 284 [2023-11-28 20:37:04,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:04,680 INFO L124 PetriNetUnfolderBase]: 8/361 cut-off events. [2023-11-28 20:37:04,680 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:37:04,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 361 events. 8/361 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 878 event pairs, 6 based on Foata normal form. 6/336 useless extension candidates. Maximal degree in co-relation 222. Up to 24 conditions per place. [2023-11-28 20:37:04,684 INFO L140 encePairwiseOnDemand]: 277/284 looper letters, 10 selfloop transitions, 2 changer transitions 1/280 dead transitions. [2023-11-28 20:37:04,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 280 transitions, 587 flow [2023-11-28 20:37:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:04,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2023-11-28 20:37:04,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9683098591549296 [2023-11-28 20:37:04,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2023-11-28 20:37:04,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2023-11-28 20:37:04,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:04,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2023-11-28 20:37:04,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,725 INFO L175 Difference]: Start difference. First operand has 281 places, 283 transitions, 569 flow. Second operand 3 states and 825 transitions. [2023-11-28 20:37:04,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 280 transitions, 587 flow [2023-11-28 20:37:04,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 280 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:37:04,738 INFO L231 Difference]: Finished difference. Result has 283 places, 279 transitions, 570 flow [2023-11-28 20:37:04,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=283, PETRI_TRANSITIONS=279} [2023-11-28 20:37:04,744 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 2 predicate places. [2023-11-28 20:37:04,744 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 279 transitions, 570 flow [2023-11-28 20:37:04,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:04,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:04,746 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] [2023-11-28 20:37:04,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:37:04,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:04,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash 400772245, now seen corresponding path program 1 times [2023-11-28 20:37:04,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409132701] [2023-11-28 20:37:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:04,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:04,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409132701] [2023-11-28 20:37:04,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409132701] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91186672] [2023-11-28 20:37:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:04,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:04,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:04,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:04,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:37:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:05,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:37:05,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:05,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:05,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91186672] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:05,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:05,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-28 20:37:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974673214] [2023-11-28 20:37:05,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:05,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:37:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:37:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:37:05,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:05,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 279 transitions, 570 flow. Second operand has 10 states, 10 states have (on average 267.8) internal successors, (2678), 10 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:05,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:05,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:05,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:05,374 INFO L124 PetriNetUnfolderBase]: 8/367 cut-off events. [2023-11-28 20:37:05,374 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:37:05,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 367 events. 8/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 877 event pairs, 6 based on Foata normal form. 2/339 useless extension candidates. Maximal degree in co-relation 387. Up to 24 conditions per place. [2023-11-28 20:37:05,377 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 14 selfloop transitions, 9 changer transitions 0/287 dead transitions. [2023-11-28 20:37:05,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 287 transitions, 634 flow [2023-11-28 20:37:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:37:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 20:37:05,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2419 transitions. [2023-11-28 20:37:05,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9464006259780907 [2023-11-28 20:37:05,385 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2419 transitions. [2023-11-28 20:37:05,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2419 transitions. [2023-11-28 20:37:05,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:05,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2419 transitions. [2023-11-28 20:37:05,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.77777777777777) internal successors, (2419), 9 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:05,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:05,402 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:05,402 INFO L175 Difference]: Start difference. First operand has 283 places, 279 transitions, 570 flow. Second operand 9 states and 2419 transitions. [2023-11-28 20:37:05,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 287 transitions, 634 flow [2023-11-28 20:37:05,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 287 transitions, 632 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:37:05,409 INFO L231 Difference]: Finished difference. Result has 292 places, 285 transitions, 618 flow [2023-11-28 20:37:05,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=292, PETRI_TRANSITIONS=285} [2023-11-28 20:37:05,411 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 11 predicate places. [2023-11-28 20:37:05,411 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 285 transitions, 618 flow [2023-11-28 20:37:05,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 267.8) internal successors, (2678), 10 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:05,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:05,414 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:05,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:37:05,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:05,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:05,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -266751915, now seen corresponding path program 2 times [2023-11-28 20:37:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108839483] [2023-11-28 20:37:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108839483] [2023-11-28 20:37:05,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108839483] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816420488] [2023-11-28 20:37:05,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:37:05,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:05,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:05,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:05,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:37:05,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:37:05,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:37:05,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:37:05,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:06,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:37:06,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-28 20:37:06,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:06,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-28 20:37:06,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:06,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-28 20:37:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 20:37:06,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:37:06,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816420488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:06,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:37:06,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-28 20:37:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444011801] [2023-11-28 20:37:06,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:06,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:37:06,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:37:06,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:37:06,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 284 [2023-11-28 20:37:06,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 285 transitions, 618 flow. Second operand has 8 states, 8 states have (on average 194.25) internal successors, (1554), 8 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:06,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:06,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 284 [2023-11-28 20:37:06,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:07,386 INFO L124 PetriNetUnfolderBase]: 366/1643 cut-off events. [2023-11-28 20:37:07,386 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-28 20:37:07,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1643 events. 366/1643 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10055 event pairs, 364 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 2434. Up to 794 conditions per place. [2023-11-28 20:37:07,400 INFO L140 encePairwiseOnDemand]: 264/284 looper letters, 67 selfloop transitions, 18 changer transitions 0/283 dead transitions. [2023-11-28 20:37:07,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 283 transitions, 784 flow [2023-11-28 20:37:07,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:37:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 20:37:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1824 transitions. [2023-11-28 20:37:07,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7136150234741784 [2023-11-28 20:37:07,407 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1824 transitions. [2023-11-28 20:37:07,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1824 transitions. [2023-11-28 20:37:07,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:07,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1824 transitions. [2023-11-28 20:37:07,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 202.66666666666666) internal successors, (1824), 9 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,424 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,424 INFO L175 Difference]: Start difference. First operand has 292 places, 285 transitions, 618 flow. Second operand 9 states and 1824 transitions. [2023-11-28 20:37:07,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 283 transitions, 784 flow [2023-11-28 20:37:07,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 283 transitions, 778 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-28 20:37:07,433 INFO L231 Difference]: Finished difference. Result has 297 places, 283 transitions, 644 flow [2023-11-28 20:37:07,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=644, PETRI_PLACES=297, PETRI_TRANSITIONS=283} [2023-11-28 20:37:07,434 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 16 predicate places. [2023-11-28 20:37:07,434 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 283 transitions, 644 flow [2023-11-28 20:37:07,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 194.25) internal successors, (1554), 8 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:07,436 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:07,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 20:37:07,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:07,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash -946276348, now seen corresponding path program 1 times [2023-11-28 20:37:07,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:07,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240567884] [2023-11-28 20:37:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:07,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 20:37:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:07,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240567884] [2023-11-28 20:37:07,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240567884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:07,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:07,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:37:07,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061514991] [2023-11-28 20:37:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:07,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:07,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:07,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:07,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 284 [2023-11-28 20:37:07,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 283 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:07,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 284 [2023-11-28 20:37:07,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:07,850 INFO L124 PetriNetUnfolderBase]: 8/476 cut-off events. [2023-11-28 20:37:07,850 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-28 20:37:07,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 476 events. 8/476 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 865 event pairs, 6 based on Foata normal form. 1/443 useless extension candidates. Maximal degree in co-relation 513. Up to 24 conditions per place. [2023-11-28 20:37:07,852 INFO L140 encePairwiseOnDemand]: 281/284 looper letters, 10 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2023-11-28 20:37:07,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 284 transitions, 670 flow [2023-11-28 20:37:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:07,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-11-28 20:37:07,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624413145539906 [2023-11-28 20:37:07,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-11-28 20:37:07,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-11-28 20:37:07,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:07,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-11-28 20:37:07,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,862 INFO L175 Difference]: Start difference. First operand has 297 places, 283 transitions, 644 flow. Second operand 3 states and 820 transitions. [2023-11-28 20:37:07,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 284 transitions, 670 flow [2023-11-28 20:37:07,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 284 transitions, 634 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-28 20:37:07,870 INFO L231 Difference]: Finished difference. Result has 292 places, 284 transitions, 620 flow [2023-11-28 20:37:07,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=292, PETRI_TRANSITIONS=284} [2023-11-28 20:37:07,872 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 11 predicate places. [2023-11-28 20:37:07,872 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 284 transitions, 620 flow [2023-11-28 20:37:07,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:07,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:07,873 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:07,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:37:07,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:07,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1720823033, now seen corresponding path program 1 times [2023-11-28 20:37:07,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:07,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398046676] [2023-11-28 20:37:07,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:08,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:08,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398046676] [2023-11-28 20:37:08,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398046676] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:08,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423407865] [2023-11-28 20:37:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:08,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:08,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:08,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:08,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:37:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:08,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:37:08,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:08,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:08,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423407865] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:08,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:08,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-28 20:37:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046496955] [2023-11-28 20:37:08,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:08,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:37:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:37:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:37:08,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:08,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 284 transitions, 620 flow. Second operand has 18 states, 18 states have (on average 267.8888888888889) internal successors, (4822), 18 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:08,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:08,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:08,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:08,632 INFO L124 PetriNetUnfolderBase]: 8/496 cut-off events. [2023-11-28 20:37:08,633 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-28 20:37:08,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 496 events. 8/496 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 866 event pairs, 6 based on Foata normal form. 4/466 useless extension candidates. Maximal degree in co-relation 479. Up to 24 conditions per place. [2023-11-28 20:37:08,635 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 18 selfloop transitions, 21 changer transitions 0/302 dead transitions. [2023-11-28 20:37:08,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 302 transitions, 786 flow [2023-11-28 20:37:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:37:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:37:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5629 transitions. [2023-11-28 20:37:08,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438296445338699 [2023-11-28 20:37:08,650 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5629 transitions. [2023-11-28 20:37:08,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5629 transitions. [2023-11-28 20:37:08,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:08,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5629 transitions. [2023-11-28 20:37:08,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.04761904761904) internal successors, (5629), 21 states have internal predecessors, (5629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:08,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:08,683 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:08,683 INFO L175 Difference]: Start difference. First operand has 292 places, 284 transitions, 620 flow. Second operand 21 states and 5629 transitions. [2023-11-28 20:37:08,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 302 transitions, 786 flow [2023-11-28 20:37:08,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 302 transitions, 784 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:37:08,691 INFO L231 Difference]: Finished difference. Result has 316 places, 297 transitions, 748 flow [2023-11-28 20:37:08,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=748, PETRI_PLACES=316, PETRI_TRANSITIONS=297} [2023-11-28 20:37:08,693 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 35 predicate places. [2023-11-28 20:37:08,693 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 297 transitions, 748 flow [2023-11-28 20:37:08,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 267.8888888888889) internal successors, (4822), 18 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:08,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:08,696 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:08,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:37:08,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:08,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:08,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash -312613767, now seen corresponding path program 2 times [2023-11-28 20:37:08,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:08,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313138034] [2023-11-28 20:37:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:09,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313138034] [2023-11-28 20:37:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313138034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095776020] [2023-11-28 20:37:09,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:37:09,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:09,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:09,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:09,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:37:09,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:37:09,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:37:09,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:37:09,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:09,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:37:09,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-28 20:37:09,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:09,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-28 20:37:09,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:09,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-28 20:37:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 20:37:09,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:37:09,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095776020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:09,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:37:09,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-28 20:37:09,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053798732] [2023-11-28 20:37:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:09,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:09,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:09,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-28 20:37:10,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 284 [2023-11-28 20:37:10,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 297 transitions, 748 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:10,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:10,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 284 [2023-11-28 20:37:10,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:10,466 INFO L124 PetriNetUnfolderBase]: 366/1770 cut-off events. [2023-11-28 20:37:10,467 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-28 20:37:10,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2720 conditions, 1770 events. 366/1770 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10046 event pairs, 364 based on Foata normal form. 0/1642 useless extension candidates. Maximal degree in co-relation 2585. Up to 830 conditions per place. [2023-11-28 20:37:10,475 INFO L140 encePairwiseOnDemand]: 272/284 looper letters, 71 selfloop transitions, 10 changer transitions 0/295 dead transitions. [2023-11-28 20:37:10,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 295 transitions, 906 flow [2023-11-28 20:37:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2023-11-28 20:37:10,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7423708920187794 [2023-11-28 20:37:10,480 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2023-11-28 20:37:10,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2023-11-28 20:37:10,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:10,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2023-11-28 20:37:10,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:10,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:10,490 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:10,491 INFO L175 Difference]: Start difference. First operand has 316 places, 297 transitions, 748 flow. Second operand 6 states and 1265 transitions. [2023-11-28 20:37:10,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 295 transitions, 906 flow [2023-11-28 20:37:10,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 295 transitions, 882 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-28 20:37:10,502 INFO L231 Difference]: Finished difference. Result has 313 places, 295 transitions, 740 flow [2023-11-28 20:37:10,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=313, PETRI_TRANSITIONS=295} [2023-11-28 20:37:10,503 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 32 predicate places. [2023-11-28 20:37:10,503 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 295 transitions, 740 flow [2023-11-28 20:37:10,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:10,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:10,505 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:10,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:37:10,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:37:10,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:10,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1850098573, now seen corresponding path program 1 times [2023-11-28 20:37:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:10,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229567123] [2023-11-28 20:37:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:10,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:11,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229567123] [2023-11-28 20:37:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229567123] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020789955] [2023-11-28 20:37:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:11,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:11,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:11,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:37:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:11,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 20:37:11,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:11,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:11,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020789955] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:11,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:11,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-28 20:37:11,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925722645] [2023-11-28 20:37:11,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:11,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 20:37:11,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:11,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 20:37:11,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:37:11,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:11,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 295 transitions, 740 flow. Second operand has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:11,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:11,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:11,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:12,074 INFO L124 PetriNetUnfolderBase]: 8/507 cut-off events. [2023-11-28 20:37:12,074 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-11-28 20:37:12,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 507 events. 8/507 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 853 event pairs, 6 based on Foata normal form. 3/480 useless extension candidates. Maximal degree in co-relation 501. Up to 24 conditions per place. [2023-11-28 20:37:12,078 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 21 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2023-11-28 20:37:12,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 312 transitions, 964 flow [2023-11-28 20:37:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:37:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 20:37:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8034 transitions. [2023-11-28 20:37:12,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429577464788732 [2023-11-28 20:37:12,141 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8034 transitions. [2023-11-28 20:37:12,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8034 transitions. [2023-11-28 20:37:12,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:12,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8034 transitions. [2023-11-28 20:37:12,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 267.8) internal successors, (8034), 30 states have internal predecessors, (8034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:12,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:12,205 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:12,205 INFO L175 Difference]: Start difference. First operand has 313 places, 295 transitions, 740 flow. Second operand 30 states and 8034 transitions. [2023-11-28 20:37:12,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 312 transitions, 964 flow [2023-11-28 20:37:12,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 312 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:12,218 INFO L231 Difference]: Finished difference. Result has 341 places, 305 transitions, 872 flow [2023-11-28 20:37:12,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=872, PETRI_PLACES=341, PETRI_TRANSITIONS=305} [2023-11-28 20:37:12,220 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 60 predicate places. [2023-11-28 20:37:12,220 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 305 transitions, 872 flow [2023-11-28 20:37:12,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:12,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:12,222 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:12,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 20:37:12,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:12,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:12,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash 363789241, now seen corresponding path program 2 times [2023-11-28 20:37:12,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:12,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650224359] [2023-11-28 20:37:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:13,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:13,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650224359] [2023-11-28 20:37:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650224359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096506708] [2023-11-28 20:37:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:13,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:13,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:13,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 284 [2023-11-28 20:37:13,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 305 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:13,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:13,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 284 [2023-11-28 20:37:13,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:14,111 INFO L124 PetriNetUnfolderBase]: 392/1873 cut-off events. [2023-11-28 20:37:14,112 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-28 20:37:14,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 1873 events. 392/1873 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10857 event pairs, 390 based on Foata normal form. 0/1741 useless extension candidates. Maximal degree in co-relation 2736. Up to 899 conditions per place. [2023-11-28 20:37:14,124 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 83 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2023-11-28 20:37:14,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 304 transitions, 1046 flow [2023-11-28 20:37:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2023-11-28 20:37:14,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7276995305164319 [2023-11-28 20:37:14,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1240 transitions. [2023-11-28 20:37:14,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1240 transitions. [2023-11-28 20:37:14,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:14,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1240 transitions. [2023-11-28 20:37:14,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:14,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:14,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:14,169 INFO L175 Difference]: Start difference. First operand has 341 places, 305 transitions, 872 flow. Second operand 6 states and 1240 transitions. [2023-11-28 20:37:14,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 304 transitions, 1046 flow [2023-11-28 20:37:14,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 304 transitions, 1000 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-28 20:37:14,179 INFO L231 Difference]: Finished difference. Result has 327 places, 304 transitions, 834 flow [2023-11-28 20:37:14,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=834, PETRI_PLACES=327, PETRI_TRANSITIONS=304} [2023-11-28 20:37:14,181 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 46 predicate places. [2023-11-28 20:37:14,181 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 304 transitions, 834 flow [2023-11-28 20:37:14,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:14,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:14,182 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:14,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 20:37:14,182 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:14,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2144349039, now seen corresponding path program 1 times [2023-11-28 20:37:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996433584] [2023-11-28 20:37:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:14,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996433584] [2023-11-28 20:37:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996433584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:15,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:15,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:15,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411812239] [2023-11-28 20:37:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:15,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:15,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:15,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 284 [2023-11-28 20:37:15,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 304 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:15,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:15,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 284 [2023-11-28 20:37:15,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:15,813 INFO L124 PetriNetUnfolderBase]: 56/746 cut-off events. [2023-11-28 20:37:15,813 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-28 20:37:15,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 746 events. 56/746 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2651 event pairs, 54 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 914. Up to 195 conditions per place. [2023-11-28 20:37:15,816 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 57 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2023-11-28 20:37:15,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 303 transitions, 956 flow [2023-11-28 20:37:15,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1370 transitions. [2023-11-28 20:37:15,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8039906103286385 [2023-11-28 20:37:15,822 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1370 transitions. [2023-11-28 20:37:15,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1370 transitions. [2023-11-28 20:37:15,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:15,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1370 transitions. [2023-11-28 20:37:15,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:15,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:15,830 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:15,830 INFO L175 Difference]: Start difference. First operand has 327 places, 304 transitions, 834 flow. Second operand 6 states and 1370 transitions. [2023-11-28 20:37:15,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 303 transitions, 956 flow [2023-11-28 20:37:15,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 303 transitions, 946 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:15,837 INFO L231 Difference]: Finished difference. Result has 326 places, 303 transitions, 832 flow [2023-11-28 20:37:15,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=326, PETRI_TRANSITIONS=303} [2023-11-28 20:37:15,838 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 45 predicate places. [2023-11-28 20:37:15,839 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 303 transitions, 832 flow [2023-11-28 20:37:15,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:15,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:15,840 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 20:37:15,840 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:15,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1360631682, now seen corresponding path program 1 times [2023-11-28 20:37:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:15,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494031033] [2023-11-28 20:37:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:15,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:16,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:16,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494031033] [2023-11-28 20:37:16,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494031033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:16,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:16,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520468707] [2023-11-28 20:37:16,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:16,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:16,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:16,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:16,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:17,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-28 20:37:17,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 303 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:17,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:17,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-28 20:37:17,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:17,363 INFO L124 PetriNetUnfolderBase]: 38/661 cut-off events. [2023-11-28 20:37:17,363 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-28 20:37:17,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 661 events. 38/661 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2090 event pairs, 36 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 794. Up to 158 conditions per place. [2023-11-28 20:37:17,366 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 53 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2023-11-28 20:37:17,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 302 transitions, 946 flow [2023-11-28 20:37:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-11-28 20:37:17,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.812793427230047 [2023-11-28 20:37:17,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-11-28 20:37:17,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-11-28 20:37:17,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:17,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-11-28 20:37:17,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:17,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:17,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:17,377 INFO L175 Difference]: Start difference. First operand has 326 places, 303 transitions, 832 flow. Second operand 6 states and 1385 transitions. [2023-11-28 20:37:17,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 302 transitions, 946 flow [2023-11-28 20:37:17,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 302 transitions, 936 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:17,385 INFO L231 Difference]: Finished difference. Result has 325 places, 302 transitions, 830 flow [2023-11-28 20:37:17,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=325, PETRI_TRANSITIONS=302} [2023-11-28 20:37:17,386 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 44 predicate places. [2023-11-28 20:37:17,386 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 302 transitions, 830 flow [2023-11-28 20:37:17,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:17,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:17,387 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:17,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 20:37:17,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:17,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1527928986, now seen corresponding path program 1 times [2023-11-28 20:37:17,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:17,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440528586] [2023-11-28 20:37:17,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:17,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:17,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440528586] [2023-11-28 20:37:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440528586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:17,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500113472] [2023-11-28 20:37:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:17,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:17,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:18,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 284 [2023-11-28 20:37:18,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 302 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:18,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:18,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 284 [2023-11-28 20:37:18,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:18,778 INFO L124 PetriNetUnfolderBase]: 366/1777 cut-off events. [2023-11-28 20:37:18,778 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-28 20:37:18,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2789 conditions, 1777 events. 366/1777 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10004 event pairs, 364 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2598. Up to 846 conditions per place. [2023-11-28 20:37:18,786 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 79 selfloop transitions, 5 changer transitions 0/301 dead transitions. [2023-11-28 20:37:18,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 301 transitions, 996 flow [2023-11-28 20:37:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-11-28 20:37:18,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7365023474178404 [2023-11-28 20:37:18,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-11-28 20:37:18,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-11-28 20:37:18,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:18,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-11-28 20:37:18,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:18,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:18,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:18,801 INFO L175 Difference]: Start difference. First operand has 325 places, 302 transitions, 830 flow. Second operand 6 states and 1255 transitions. [2023-11-28 20:37:18,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 301 transitions, 996 flow [2023-11-28 20:37:18,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 301 transitions, 986 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:18,811 INFO L231 Difference]: Finished difference. Result has 324 places, 301 transitions, 828 flow [2023-11-28 20:37:18,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=324, PETRI_TRANSITIONS=301} [2023-11-28 20:37:18,813 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 43 predicate places. [2023-11-28 20:37:18,813 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 301 transitions, 828 flow [2023-11-28 20:37:18,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:18,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:18,814 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:18,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 20:37:18,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:18,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1221561647, now seen corresponding path program 1 times [2023-11-28 20:37:18,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:18,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793273735] [2023-11-28 20:37:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:18,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:19,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793273735] [2023-11-28 20:37:19,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793273735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:19,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:19,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527883676] [2023-11-28 20:37:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:19,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:19,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:19,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:19,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 284 [2023-11-28 20:37:19,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 301 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:19,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:19,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 284 [2023-11-28 20:37:19,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:20,406 INFO L124 PetriNetUnfolderBase]: 366/1775 cut-off events. [2023-11-28 20:37:20,406 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-28 20:37:20,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2785 conditions, 1775 events. 366/1775 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9969 event pairs, 364 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2594. Up to 844 conditions per place. [2023-11-28 20:37:20,415 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 78 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2023-11-28 20:37:20,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 300 transitions, 992 flow [2023-11-28 20:37:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1260 transitions. [2023-11-28 20:37:20,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7394366197183099 [2023-11-28 20:37:20,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1260 transitions. [2023-11-28 20:37:20,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1260 transitions. [2023-11-28 20:37:20,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:20,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1260 transitions. [2023-11-28 20:37:20,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:20,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:20,424 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:20,424 INFO L175 Difference]: Start difference. First operand has 324 places, 301 transitions, 828 flow. Second operand 6 states and 1260 transitions. [2023-11-28 20:37:20,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 300 transitions, 992 flow [2023-11-28 20:37:20,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 300 transitions, 982 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:20,431 INFO L231 Difference]: Finished difference. Result has 323 places, 300 transitions, 826 flow [2023-11-28 20:37:20,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=323, PETRI_TRANSITIONS=300} [2023-11-28 20:37:20,432 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 42 predicate places. [2023-11-28 20:37:20,432 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 300 transitions, 826 flow [2023-11-28 20:37:20,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:20,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:20,433 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:20,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 20:37:20,433 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:20,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:20,433 INFO L85 PathProgramCache]: Analyzing trace with hash -546960638, now seen corresponding path program 1 times [2023-11-28 20:37:20,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:20,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709453594] [2023-11-28 20:37:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:20,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:20,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709453594] [2023-11-28 20:37:20,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709453594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326560718] [2023-11-28 20:37:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:20,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:20,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:20,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:20,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:37:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:20,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:37:20,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:21,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:21,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326560718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:21,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:21,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-28 20:37:21,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858894644] [2023-11-28 20:37:21,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:21,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:37:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:37:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:37:21,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:21,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 300 transitions, 826 flow. Second operand has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:21,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:21,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:21,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:21,588 INFO L124 PetriNetUnfolderBase]: 8/604 cut-off events. [2023-11-28 20:37:21,588 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-28 20:37:21,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 604 events. 8/604 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 2/586 useless extension candidates. Maximal degree in co-relation 610. Up to 24 conditions per place. [2023-11-28 20:37:21,591 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 14 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2023-11-28 20:37:21,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 308 transitions, 890 flow [2023-11-28 20:37:21,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:37:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 20:37:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2419 transitions. [2023-11-28 20:37:21,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9464006259780907 [2023-11-28 20:37:21,596 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2419 transitions. [2023-11-28 20:37:21,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2419 transitions. [2023-11-28 20:37:21,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:21,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2419 transitions. [2023-11-28 20:37:21,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.77777777777777) internal successors, (2419), 9 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:21,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:21,605 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:21,605 INFO L175 Difference]: Start difference. First operand has 323 places, 300 transitions, 826 flow. Second operand 9 states and 2419 transitions. [2023-11-28 20:37:21,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 308 transitions, 890 flow [2023-11-28 20:37:21,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 308 transitions, 880 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:37:21,615 INFO L231 Difference]: Finished difference. Result has 329 places, 306 transitions, 866 flow [2023-11-28 20:37:21,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=866, PETRI_PLACES=329, PETRI_TRANSITIONS=306} [2023-11-28 20:37:21,617 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 48 predicate places. [2023-11-28 20:37:21,617 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 306 transitions, 866 flow [2023-11-28 20:37:21,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:21,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:21,618 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:21,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:37:21,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-28 20:37:21,819 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:21,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 25044610, now seen corresponding path program 2 times [2023-11-28 20:37:21,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:21,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303425636] [2023-11-28 20:37:21,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:21,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:22,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:22,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303425636] [2023-11-28 20:37:22,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303425636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:22,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655422200] [2023-11-28 20:37:22,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:37:22,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:22,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:22,423 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:22,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:37:22,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:37:22,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:37:22,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:37:22,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:22,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-28 20:37:22,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-28 20:37:22,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:22,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-28 20:37:22,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:22,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-28 20:37:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-28 20:37:22,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:37:22,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655422200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:22,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:37:22,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-28 20:37:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701345880] [2023-11-28 20:37:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:22,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:37:23,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-28 20:37:23,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 306 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:23,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:23,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-28 20:37:23,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:24,388 INFO L124 PetriNetUnfolderBase]: 258/1927 cut-off events. [2023-11-28 20:37:24,388 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-28 20:37:24,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1927 events. 258/1927 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10299 event pairs, 34 based on Foata normal form. 0/1801 useless extension candidates. Maximal degree in co-relation 2535. Up to 491 conditions per place. [2023-11-28 20:37:24,397 INFO L140 encePairwiseOnDemand]: 261/284 looper letters, 67 selfloop transitions, 70 changer transitions 0/384 dead transitions. [2023-11-28 20:37:24,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 384 transitions, 1296 flow [2023-11-28 20:37:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1464 transitions. [2023-11-28 20:37:24,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8591549295774648 [2023-11-28 20:37:24,400 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1464 transitions. [2023-11-28 20:37:24,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1464 transitions. [2023-11-28 20:37:24,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:24,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1464 transitions. [2023-11-28 20:37:24,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:24,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:24,407 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:24,407 INFO L175 Difference]: Start difference. First operand has 329 places, 306 transitions, 866 flow. Second operand 6 states and 1464 transitions. [2023-11-28 20:37:24,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 384 transitions, 1296 flow [2023-11-28 20:37:24,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 384 transitions, 1290 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-28 20:37:24,420 INFO L231 Difference]: Finished difference. Result has 338 places, 375 transitions, 1322 flow [2023-11-28 20:37:24,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1322, PETRI_PLACES=338, PETRI_TRANSITIONS=375} [2023-11-28 20:37:24,421 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 57 predicate places. [2023-11-28 20:37:24,421 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 375 transitions, 1322 flow [2023-11-28 20:37:24,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:24,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:24,422 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:24,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:37:24,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-28 20:37:24,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:24,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:24,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1067711899, now seen corresponding path program 1 times [2023-11-28 20:37:24,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:24,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521862119] [2023-11-28 20:37:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:24,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521862119] [2023-11-28 20:37:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521862119] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482919989] [2023-11-28 20:37:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:25,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:25,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:25,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:37:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:25,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:37:25,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:25,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482919989] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:26,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:26,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-28 20:37:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936319419] [2023-11-28 20:37:26,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:26,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:37:26,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:37:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:37:26,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:26,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 375 transitions, 1322 flow. Second operand has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:26,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:26,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:26,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:27,478 INFO L124 PetriNetUnfolderBase]: 181/2087 cut-off events. [2023-11-28 20:37:27,478 INFO L125 PetriNetUnfolderBase]: For 309/316 co-relation queries the response was YES. [2023-11-28 20:37:27,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 2087 events. 181/2087 cut-off events. For 309/316 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7691 event pairs, 23 based on Foata normal form. 4/2005 useless extension candidates. Maximal degree in co-relation 2780. Up to 207 conditions per place. [2023-11-28 20:37:27,488 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 19 selfloop transitions, 21 changer transitions 0/393 dead transitions. [2023-11-28 20:37:27,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 393 transitions, 1490 flow [2023-11-28 20:37:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:37:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 20:37:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5629 transitions. [2023-11-28 20:37:27,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438296445338699 [2023-11-28 20:37:27,493 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5629 transitions. [2023-11-28 20:37:27,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5629 transitions. [2023-11-28 20:37:27,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:27,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5629 transitions. [2023-11-28 20:37:27,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.04761904761904) internal successors, (5629), 21 states have internal predecessors, (5629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,507 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,507 INFO L175 Difference]: Start difference. First operand has 338 places, 375 transitions, 1322 flow. Second operand 21 states and 5629 transitions. [2023-11-28 20:37:27,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 393 transitions, 1490 flow [2023-11-28 20:37:27,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 393 transitions, 1490 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:37:27,518 INFO L231 Difference]: Finished difference. Result has 363 places, 388 transitions, 1452 flow [2023-11-28 20:37:27,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1452, PETRI_PLACES=363, PETRI_TRANSITIONS=388} [2023-11-28 20:37:27,519 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 82 predicate places. [2023-11-28 20:37:27,519 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 388 transitions, 1452 flow [2023-11-28 20:37:27,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:27,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:27,521 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:27,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:37:27,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-28 20:37:27,722 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:27,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1061463707, now seen corresponding path program 2 times [2023-11-28 20:37:27,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:27,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880991154] [2023-11-28 20:37:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:29,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:29,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880991154] [2023-11-28 20:37:29,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880991154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:29,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012824070] [2023-11-28 20:37:29,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:37:29,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:29,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:29,542 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:29,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:37:29,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:37:29,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:37:29,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:37:29,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:30,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:37:30,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-28 20:37:30,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:30,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-28 20:37:30,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:37:30,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-28 20:37:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2023-11-28 20:37:30,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:37:30,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012824070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:30,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:37:30,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-28 20:37:30,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936460464] [2023-11-28 20:37:30,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:30,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:30,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:30,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:30,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-28 20:37:30,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-28 20:37:30,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 388 transitions, 1452 flow. Second operand has 6 states, 6 states have (on average 227.16666666666666) internal successors, (1363), 6 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:30,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:30,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-28 20:37:30,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:32,084 INFO L124 PetriNetUnfolderBase]: 546/3157 cut-off events. [2023-11-28 20:37:32,084 INFO L125 PetriNetUnfolderBase]: For 965/1049 co-relation queries the response was YES. [2023-11-28 20:37:32,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5618 conditions, 3157 events. 546/3157 cut-off events. For 965/1049 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16284 event pairs, 93 based on Foata normal form. 16/3008 useless extension candidates. Maximal degree in co-relation 5414. Up to 981 conditions per place. [2023-11-28 20:37:32,104 INFO L140 encePairwiseOnDemand]: 261/284 looper letters, 131 selfloop transitions, 130 changer transitions 0/525 dead transitions. [2023-11-28 20:37:32,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 525 transitions, 2624 flow [2023-11-28 20:37:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-28 20:37:32,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8585680751173709 [2023-11-28 20:37:32,106 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-28 20:37:32,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-28 20:37:32,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:32,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-28 20:37:32,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:32,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:32,110 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:32,110 INFO L175 Difference]: Start difference. First operand has 363 places, 388 transitions, 1452 flow. Second operand 6 states and 1463 transitions. [2023-11-28 20:37:32,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 525 transitions, 2624 flow [2023-11-28 20:37:32,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 525 transitions, 2600 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-28 20:37:32,134 INFO L231 Difference]: Finished difference. Result has 367 places, 517 transitions, 2656 flow [2023-11-28 20:37:32,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=1428, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2656, PETRI_PLACES=367, PETRI_TRANSITIONS=517} [2023-11-28 20:37:32,135 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 86 predicate places. [2023-11-28 20:37:32,136 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 517 transitions, 2656 flow [2023-11-28 20:37:32,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.16666666666666) internal successors, (1363), 6 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:32,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:32,137 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:32,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:37:32,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 20:37:32,338 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:32,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1402075553, now seen corresponding path program 1 times [2023-11-28 20:37:32,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901646361] [2023-11-28 20:37:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:32,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:34,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901646361] [2023-11-28 20:37:34,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901646361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:37:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721426038] [2023-11-28 20:37:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:34,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:37:34,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:34,200 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:37:34,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:37:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:35,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 20:37:35,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:35,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:37:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 20:37:36,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721426038] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:37:36,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:37:36,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-28 20:37:36,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430944494] [2023-11-28 20:37:36,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:37:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 20:37:36,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:36,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 20:37:36,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:37:36,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-28 20:37:36,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 517 transitions, 2656 flow. Second operand has 23 states, 23 states have (on average 268.0869565217391) internal successors, (6166), 23 states have internal predecessors, (6166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:36,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:36,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-28 20:37:36,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:38,559 INFO L124 PetriNetUnfolderBase]: 407/3137 cut-off events. [2023-11-28 20:37:38,559 INFO L125 PetriNetUnfolderBase]: For 1302/1344 co-relation queries the response was YES. [2023-11-28 20:37:38,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5468 conditions, 3137 events. 407/3137 cut-off events. For 1302/1344 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13567 event pairs, 39 based on Foata normal form. 7/3036 useless extension candidates. Maximal degree in co-relation 5259. Up to 468 conditions per place. [2023-11-28 20:37:38,578 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 22 selfloop transitions, 30 changer transitions 0/534 dead transitions. [2023-11-28 20:37:38,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 534 transitions, 2882 flow [2023-11-28 20:37:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:37:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 20:37:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8034 transitions. [2023-11-28 20:37:38,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429577464788732 [2023-11-28 20:37:38,590 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8034 transitions. [2023-11-28 20:37:38,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8034 transitions. [2023-11-28 20:37:38,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:38,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8034 transitions. [2023-11-28 20:37:38,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 267.8) internal successors, (8034), 30 states have internal predecessors, (8034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:38,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:38,619 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:38,619 INFO L175 Difference]: Start difference. First operand has 367 places, 517 transitions, 2656 flow. Second operand 30 states and 8034 transitions. [2023-11-28 20:37:38,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 534 transitions, 2882 flow [2023-11-28 20:37:38,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 534 transitions, 2882 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:37:38,637 INFO L231 Difference]: Finished difference. Result has 400 places, 527 transitions, 2808 flow [2023-11-28 20:37:38,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=2656, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2808, PETRI_PLACES=400, PETRI_TRANSITIONS=527} [2023-11-28 20:37:38,639 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 119 predicate places. [2023-11-28 20:37:38,639 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 527 transitions, 2808 flow [2023-11-28 20:37:38,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 268.0869565217391) internal successors, (6166), 23 states have internal predecessors, (6166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:38,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:38,640 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:38,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:37:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 20:37:38,841 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:38,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1393177179, now seen corresponding path program 2 times [2023-11-28 20:37:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452389800] [2023-11-28 20:37:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-28 20:37:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452389800] [2023-11-28 20:37:43,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452389800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:43,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:43,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:43,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342171715] [2023-11-28 20:37:43,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:43,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:43,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:43,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:43,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-28 20:37:43,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 527 transitions, 2808 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:43,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:43,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-28 20:37:43,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:45,787 INFO L124 PetriNetUnfolderBase]: 822/4254 cut-off events. [2023-11-28 20:37:45,788 INFO L125 PetriNetUnfolderBase]: For 3418/3654 co-relation queries the response was YES. [2023-11-28 20:37:45,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8981 conditions, 4254 events. 822/4254 cut-off events. For 3418/3654 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22851 event pairs, 74 based on Foata normal form. 78/4157 useless extension candidates. Maximal degree in co-relation 8768. Up to 1323 conditions per place. [2023-11-28 20:37:45,807 INFO L140 encePairwiseOnDemand]: 261/284 looper letters, 251 selfloop transitions, 131 changer transitions 5/665 dead transitions. [2023-11-28 20:37:45,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 665 transitions, 4482 flow [2023-11-28 20:37:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1464 transitions. [2023-11-28 20:37:45,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8591549295774648 [2023-11-28 20:37:45,811 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1464 transitions. [2023-11-28 20:37:45,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1464 transitions. [2023-11-28 20:37:45,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:45,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1464 transitions. [2023-11-28 20:37:45,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:45,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:45,815 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:45,815 INFO L175 Difference]: Start difference. First operand has 400 places, 527 transitions, 2808 flow. Second operand 6 states and 1464 transitions. [2023-11-28 20:37:45,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 665 transitions, 4482 flow [2023-11-28 20:37:45,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 665 transitions, 4436 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-28 20:37:45,835 INFO L231 Difference]: Finished difference. Result has 392 places, 655 transitions, 4242 flow [2023-11-28 20:37:45,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=2762, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4242, PETRI_PLACES=392, PETRI_TRANSITIONS=655} [2023-11-28 20:37:45,836 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 111 predicate places. [2023-11-28 20:37:45,837 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 655 transitions, 4242 flow [2023-11-28 20:37:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:45,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:45,838 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:45,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 20:37:45,838 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:45,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1352370101, now seen corresponding path program 1 times [2023-11-28 20:37:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:45,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180032794] [2023-11-28 20:37:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:45,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-28 20:37:50,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:50,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180032794] [2023-11-28 20:37:50,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180032794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:50,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:50,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:37:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347327632] [2023-11-28 20:37:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:50,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:51,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 284 [2023-11-28 20:37:51,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 655 transitions, 4242 flow. Second operand has 6 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:51,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:51,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 284 [2023-11-28 20:37:51,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:54,338 INFO L124 PetriNetUnfolderBase]: 1309/5602 cut-off events. [2023-11-28 20:37:54,338 INFO L125 PetriNetUnfolderBase]: For 4980/5037 co-relation queries the response was YES. [2023-11-28 20:37:54,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13618 conditions, 5602 events. 1309/5602 cut-off events. For 4980/5037 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 34440 event pairs, 369 based on Foata normal form. 11/5378 useless extension candidates. Maximal degree in co-relation 13401. Up to 2549 conditions per place. [2023-11-28 20:37:54,367 INFO L140 encePairwiseOnDemand]: 265/284 looper letters, 316 selfloop transitions, 84 changer transitions 0/734 dead transitions. [2023-11-28 20:37:54,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 734 transitions, 5440 flow [2023-11-28 20:37:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:37:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:37:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2023-11-28 20:37:54,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7875586854460094 [2023-11-28 20:37:54,369 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1342 transitions. [2023-11-28 20:37:54,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1342 transitions. [2023-11-28 20:37:54,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:54,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1342 transitions. [2023-11-28 20:37:54,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:54,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:54,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:54,373 INFO L175 Difference]: Start difference. First operand has 392 places, 655 transitions, 4242 flow. Second operand 6 states and 1342 transitions. [2023-11-28 20:37:54,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 734 transitions, 5440 flow [2023-11-28 20:37:54,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 734 transitions, 5186 flow, removed 127 selfloop flow, removed 0 redundant places. [2023-11-28 20:37:54,401 INFO L231 Difference]: Finished difference. Result has 401 places, 726 transitions, 4778 flow [2023-11-28 20:37:54,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=3994, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4778, PETRI_PLACES=401, PETRI_TRANSITIONS=726} [2023-11-28 20:37:54,402 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 120 predicate places. [2023-11-28 20:37:54,402 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 726 transitions, 4778 flow [2023-11-28 20:37:54,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:54,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:54,402 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:54,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 20:37:54,403 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 20:37:54,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1177242127, now seen corresponding path program 1 times [2023-11-28 20:37:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:54,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539973641] [2023-11-28 20:37:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 239 proven. 3090 refuted. 0 times theorem prover too weak. 1641 trivial. 0 not checked. [2023-11-28 20:38:49,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:49,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539973641] [2023-11-28 20:38:49,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539973641] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:38:49,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039850246] [2023-11-28 20:38:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:49,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:38:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:38:49,674 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:38:49,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c31048-f2d3-4086-86b5-319dc6ca5a3c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:38:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:55,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 4497 conjuncts, 146 conjunts are in the unsatisfiable core [2023-11-28 20:38:55,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:56,328 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-28 20:38:56,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-28 20:38:56,480 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-28 20:38:56,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-28 20:38:57,007 INFO L349 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-11-28 20:38:57,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2023-11-28 20:38:58,893 INFO L349 Elim1Store]: treesize reduction 60, result has 46.4 percent of original size [2023-11-28 20:38:58,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 74 [2023-11-28 20:39:00,020 INFO L349 Elim1Store]: treesize reduction 60, result has 46.4 percent of original size [2023-11-28 20:39:00,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 74 [2023-11-28 20:39:02,012 INFO L349 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2023-11-28 20:39:02,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2023-11-28 20:39:03,512 INFO L349 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2023-11-28 20:39:03,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2023-11-28 20:39:05,714 INFO L349 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2023-11-28 20:39:05,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2023-11-28 20:39:06,995 INFO L349 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2023-11-28 20:39:06,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2023-11-28 20:39:09,046 INFO L349 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2023-11-28 20:39:09,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2023-11-28 20:39:10,263 INFO L349 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2023-11-28 20:39:10,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 37 treesize of output 79 [2023-11-28 20:39:13,240 INFO L349 Elim1Store]: treesize reduction 50, result has 71.6 percent of original size [2023-11-28 20:39:13,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 54 treesize of output 168 [2023-11-28 20:39:53,464 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 783 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 20:40:52,279 INFO L349 Elim1Store]: treesize reduction 50, result has 71.6 percent of original size [2023-11-28 20:40:52,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 54 treesize of output 168 [2023-11-28 20:41:35,589 WARN L293 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 1621 DAG size of output: 1623 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 20:42:36,731 WARN L293 SmtUtils]: Spent 17.84s on a formula simplification that was a NOOP. DAG size: 1482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 20:45:14,914 WARN L293 SmtUtils]: Spent 21.70s on a formula simplification that was a NOOP. DAG size: 4038 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)