./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU --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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:15,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:15,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:15:15,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:15,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:15,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:15,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:15,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:15,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:15,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:15,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:15,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:15,868 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:15,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:15,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:15,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:15,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:15,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:15,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:15,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:15,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:15,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:15,876 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:15:15,880 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:15,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:15,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:15,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:15,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:15,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:15,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:15,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:15,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:15,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:15,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:15,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:15,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:15,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:15,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:15,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:15,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:15,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:15,888 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_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-10-31 22:15:16,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:16,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:16,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:16,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:16,206 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:16,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i Unable to find full path for "g++" [2024-10-31 22:15:18,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:18,809 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:18,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-10-31 22:15:18,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/data/0628ee584/984d97278df047ad80c4852f9645cac6/FLAGb5237cbad [2024-10-31 22:15:18,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/data/0628ee584/984d97278df047ad80c4852f9645cac6 [2024-10-31 22:15:18,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:18,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:18,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:18,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:18,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:18,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:18" (1/1) ... [2024-10-31 22:15:18,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fb2f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:18, skipping insertion in model container [2024-10-31 22:15:18,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:18" (1/1) ... [2024-10-31 22:15:18,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:19,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:19,747 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:19,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:19,940 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:19,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19 WrapperNode [2024-10-31 22:15:19,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:19,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:19,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:19,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:19,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:19,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,031 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2024-10-31 22:15:20,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:20,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:20,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:20,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:20,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:20,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:20,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:20,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:20,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (1/1) ... [2024-10-31 22:15:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:20,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:20,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:20,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:15:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:15:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:15:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:15:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:15:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:15:20,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:15:20,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:20,284 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:20,491 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:20,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:21,085 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:21,088 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:21,134 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:21,135 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:15:21,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:21 BoogieIcfgContainer [2024-10-31 22:15:21,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:21,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:21,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:21,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:21,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:18" (1/3) ... [2024-10-31 22:15:21,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6646d6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:21, skipping insertion in model container [2024-10-31 22:15:21,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:19" (2/3) ... [2024-10-31 22:15:21,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6646d6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:21, skipping insertion in model container [2024-10-31 22:15:21,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:21" (3/3) ... [2024-10-31 22:15:21,149 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-10-31 22:15:21,165 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:21,165 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:15:21,165 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:21,233 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:15:21,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 185 transitions, 374 flow [2024-10-31 22:15:21,360 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2024-10-31 22:15:21,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:21,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 184 events. 6/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-10-31 22:15:21,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 185 transitions, 374 flow [2024-10-31 22:15:21,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 184 transitions, 371 flow [2024-10-31 22:15:21,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:21,392 INFO L333 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, 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;@4b17cd47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:21,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:15:21,433 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:21,433 INFO L124 PetriNetUnfolderBase]: 4/118 cut-off events. [2024-10-31 22:15:21,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:21,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:21,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:21,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:21,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:21,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1787129944, now seen corresponding path program 1 times [2024-10-31 22:15:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:21,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429064140] [2024-10-31 22:15:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:21,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:21,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:21,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429064140] [2024-10-31 22:15:21,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429064140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:21,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:21,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246806235] [2024-10-31 22:15:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:21,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:21,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:21,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:21,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:22,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-10-31 22:15:22,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:22,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-10-31 22:15:22,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:22,192 INFO L124 PetriNetUnfolderBase]: 17/319 cut-off events. [2024-10-31 22:15:22,192 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:22,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 319 events. 17/319 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 897 event pairs, 10 based on Foata normal form. 12/310 useless extension candidates. Maximal degree in co-relation 266. Up to 38 conditions per place. [2024-10-31 22:15:22,196 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-10-31 22:15:22,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2024-10-31 22:15:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-10-31 22:15:22,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-10-31 22:15:22,219 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 371 flow. Second operand 3 states and 526 transitions. [2024-10-31 22:15:22,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2024-10-31 22:15:22,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:22,230 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2024-10-31 22:15:22,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2024-10-31 22:15:22,238 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-10-31 22:15:22,239 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2024-10-31 22:15:22,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:22,240 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:22,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:22,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash -819207593, now seen corresponding path program 1 times [2024-10-31 22:15:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:22,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689401292] [2024-10-31 22:15:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:22,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:22,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689401292] [2024-10-31 22:15:22,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689401292] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:22,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810240070] [2024-10-31 22:15:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:22,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:22,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:22,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:15:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:22,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:15:22,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:15:22,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:22,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810240070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:22,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:22,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-31 22:15:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818846038] [2024-10-31 22:15:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:22,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:22,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:22,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-10-31 22:15:22,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:22,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:22,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-10-31 22:15:22,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:22,990 INFO L124 PetriNetUnfolderBase]: 35/478 cut-off events. [2024-10-31 22:15:22,990 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:22,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 478 events. 35/478 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1746 event pairs, 10 based on Foata normal form. 3/452 useless extension candidates. Maximal degree in co-relation 478. Up to 51 conditions per place. [2024-10-31 22:15:22,999 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-10-31 22:15:23,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2024-10-31 22:15:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:23,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-10-31 22:15:23,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-10-31 22:15:23,006 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2024-10-31 22:15:23,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2024-10-31 22:15:23,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:23,012 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2024-10-31 22:15:23,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2024-10-31 22:15:23,014 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2024-10-31 22:15:23,015 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2024-10-31 22:15:23,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:15:23,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:23,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:23,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1725730826, now seen corresponding path program 1 times [2024-10-31 22:15:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052359439] [2024-10-31 22:15:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052359439] [2024-10-31 22:15:23,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052359439] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918313663] [2024-10-31 22:15:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:23,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:23,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:23,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:15:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:23,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918313663] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:23,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:23,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:15:23,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974201854] [2024-10-31 22:15:23,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:15:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:15:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:23,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-10-31 22:15:23,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:23,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-10-31 22:15:23,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:23,997 INFO L124 PetriNetUnfolderBase]: 19/411 cut-off events. [2024-10-31 22:15:23,997 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:24,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 411 events. 19/411 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1287 event pairs, 14 based on Foata normal form. 2/391 useless extension candidates. Maximal degree in co-relation 381. Up to 44 conditions per place. [2024-10-31 22:15:24,003 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2024-10-31 22:15:24,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2024-10-31 22:15:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:15:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:15:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2024-10-31 22:15:24,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9135135135135135 [2024-10-31 22:15:24,009 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2024-10-31 22:15:24,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2024-10-31 22:15:24,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:24,016 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2024-10-31 22:15:24,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2024-10-31 22:15:24,018 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2024-10-31 22:15:24,018 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2024-10-31 22:15:24,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:24,022 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:15:24,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:24,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:24,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1706137450, now seen corresponding path program 2 times [2024-10-31 22:15:24,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500287984] [2024-10-31 22:15:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500287984] [2024-10-31 22:15:24,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500287984] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:24,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499106020] [2024-10-31 22:15:24,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:24,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:24,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:24,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:24,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:15:24,725 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:15:24,726 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:24,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:15:24,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:24,775 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 [2024-10-31 22:15:24,804 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 21 treesize of output 20 [2024-10-31 22:15:24,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:15:24,857 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 30 treesize of output 32 [2024-10-31 22:15:24,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:15:24,916 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 39 treesize of output 44 [2024-10-31 22:15:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:15:24,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:24,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499106020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:24,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-31 22:15:24,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306248214] [2024-10-31 22:15:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:24,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:15:25,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:15:25,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:25,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:15:25,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:25,842 INFO L124 PetriNetUnfolderBase]: 399/1948 cut-off events. [2024-10-31 22:15:25,843 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:15:25,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 1948 events. 399/1948 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 13781 event pairs, 194 based on Foata normal form. 0/1811 useless extension candidates. Maximal degree in co-relation 2700. Up to 649 conditions per place. [2024-10-31 22:15:25,856 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 44 selfloop transitions, 38 changer transitions 0/242 dead transitions. [2024-10-31 22:15:25,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 242 transitions, 704 flow [2024-10-31 22:15:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2024-10-31 22:15:25,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9018018018018018 [2024-10-31 22:15:25,859 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 1001 transitions. [2024-10-31 22:15:25,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 242 transitions, 704 flow [2024-10-31 22:15:25,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 242 transitions, 698 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:25,866 INFO L231 Difference]: Finished difference. Result has 205 places, 226 transitions, 682 flow [2024-10-31 22:15:25,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=682, PETRI_PLACES=205, PETRI_TRANSITIONS=226} [2024-10-31 22:15:25,868 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2024-10-31 22:15:25,868 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 226 transitions, 682 flow [2024-10-31 22:15:25,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:25,870 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:15:26,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:26,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:26,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1170129186, now seen corresponding path program 1 times [2024-10-31 22:15:26,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151306451] [2024-10-31 22:15:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151306451] [2024-10-31 22:15:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151306451] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:26,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547291016] [2024-10-31 22:15:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:26,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:26,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:26,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:15:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:15:26,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,528 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547291016] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:26,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:26,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:15:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688090227] [2024-10-31 22:15:26,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:15:26,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:15:26,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:15:26,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-10-31 22:15:26,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 226 transitions, 682 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:26,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-10-31 22:15:26,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:27,194 INFO L124 PetriNetUnfolderBase]: 137/1104 cut-off events. [2024-10-31 22:15:27,194 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-10-31 22:15:27,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1104 events. 137/1104 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6357 event pairs, 32 based on Foata normal form. 4/1052 useless extension candidates. Maximal degree in co-relation 1541. Up to 177 conditions per place. [2024-10-31 22:15:27,202 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 20 selfloop transitions, 21 changer transitions 0/244 dead transitions. [2024-10-31 22:15:27,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 244 transitions, 852 flow [2024-10-31 22:15:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:15:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-31 22:15:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2024-10-31 22:15:27,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088803088803089 [2024-10-31 22:15:27,210 INFO L175 Difference]: Start difference. First operand has 205 places, 226 transitions, 682 flow. Second operand 21 states and 3531 transitions. [2024-10-31 22:15:27,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 244 transitions, 852 flow [2024-10-31 22:15:27,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 244 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:27,219 INFO L231 Difference]: Finished difference. Result has 230 places, 239 transitions, 812 flow [2024-10-31 22:15:27,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=812, PETRI_PLACES=230, PETRI_TRANSITIONS=239} [2024-10-31 22:15:27,220 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2024-10-31 22:15:27,220 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 239 transitions, 812 flow [2024-10-31 22:15:27,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:27,223 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:15:27,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:27,428 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:27,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash 870589854, now seen corresponding path program 2 times [2024-10-31 22:15:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339588863] [2024-10-31 22:15:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:27,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339588863] [2024-10-31 22:15:27,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339588863] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:27,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811769882] [2024-10-31 22:15:27,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:27,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:27,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:27,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:15:28,025 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:15:28,025 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:28,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:15:28,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:28,040 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 [2024-10-31 22:15:28,064 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 21 treesize of output 20 [2024-10-31 22:15:28,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:15:28,099 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 30 treesize of output 32 [2024-10-31 22:15:28,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:15:28,144 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 39 treesize of output 44 [2024-10-31 22:15:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:28,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:28,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811769882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:28,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:28,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-31 22:15:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396777010] [2024-10-31 22:15:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:28,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:28,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:15:28,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:15:28,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 239 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:28,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:28,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:15:28,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:29,281 INFO L124 PetriNetUnfolderBase]: 467/2141 cut-off events. [2024-10-31 22:15:29,282 INFO L125 PetriNetUnfolderBase]: For 490/544 co-relation queries the response was YES. [2024-10-31 22:15:29,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 2141 events. 467/2141 cut-off events. For 490/544 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 15262 event pairs, 165 based on Foata normal form. 14/2056 useless extension candidates. Maximal degree in co-relation 3652. Up to 752 conditions per place. [2024-10-31 22:15:29,296 INFO L140 encePairwiseOnDemand]: 174/185 looper letters, 69 selfloop transitions, 30 changer transitions 0/276 dead transitions. [2024-10-31 22:15:29,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 276 transitions, 1126 flow [2024-10-31 22:15:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2024-10-31 22:15:29,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8801801801801802 [2024-10-31 22:15:29,300 INFO L175 Difference]: Start difference. First operand has 230 places, 239 transitions, 812 flow. Second operand 6 states and 977 transitions. [2024-10-31 22:15:29,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 276 transitions, 1126 flow [2024-10-31 22:15:29,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 276 transitions, 1102 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-31 22:15:29,310 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2024-10-31 22:15:29,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2024-10-31 22:15:29,312 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2024-10-31 22:15:29,313 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2024-10-31 22:15:29,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:29,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:29,315 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:15:29,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:15:29,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:29,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:29,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1948780719, now seen corresponding path program 1 times [2024-10-31 22:15:29,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:29,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681799671] [2024-10-31 22:15:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:29,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:30,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:30,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681799671] [2024-10-31 22:15:30,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681799671] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:30,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345336431] [2024-10-31 22:15:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:30,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:30,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:30,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:30,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:15:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:15:30,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:30,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:30,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345336431] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:30,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:30,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-31 22:15:30,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321892908] [2024-10-31 22:15:30,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:30,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:15:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:15:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:15:30,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-10-31 22:15:30,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:30,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:30,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-10-31 22:15:30,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:31,569 INFO L124 PetriNetUnfolderBase]: 240/1622 cut-off events. [2024-10-31 22:15:31,569 INFO L125 PetriNetUnfolderBase]: For 560/593 co-relation queries the response was YES. [2024-10-31 22:15:31,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1622 events. 240/1622 cut-off events. For 560/593 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10620 event pairs, 39 based on Foata normal form. 13/1568 useless extension candidates. Maximal degree in co-relation 2698. Up to 221 conditions per place. [2024-10-31 22:15:31,582 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2024-10-31 22:15:31,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2024-10-31 22:15:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-31 22:15:31,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-31 22:15:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2024-10-31 22:15:31,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9073873873873873 [2024-10-31 22:15:31,593 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2024-10-31 22:15:31,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2024-10-31 22:15:31,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:31,604 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2024-10-31 22:15:31,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2024-10-31 22:15:31,605 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2024-10-31 22:15:31,606 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2024-10-31 22:15:31,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:31,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:31,608 INFO L204 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] [2024-10-31 22:15:31,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:31,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0f5fe1-a6f2-4ee7-8016-c26d0043d985/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:31,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:31,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash 326168846, now seen corresponding path program 2 times [2024-10-31 22:15:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847919779] [2024-10-31 22:15:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:31,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:15:32,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:32,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847919779] [2024-10-31 22:15:32,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847919779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:32,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:32,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:32,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120907573] [2024-10-31 22:15:32,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:32,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:32,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:32,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:32,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-10-31 22:15:32,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:32,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:32,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-10-31 22:15:32,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:33,943 INFO L124 PetriNetUnfolderBase]: 1060/3733 cut-off events. [2024-10-31 22:15:33,944 INFO L125 PetriNetUnfolderBase]: For 1899/1970 co-relation queries the response was YES. [2024-10-31 22:15:33,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8283 conditions, 3733 events. 1060/3733 cut-off events. For 1899/1970 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 28438 event pairs, 332 based on Foata normal form. 18/3543 useless extension candidates. Maximal degree in co-relation 8005. Up to 1828 conditions per place. [2024-10-31 22:15:33,984 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 106 selfloop transitions, 89 changer transitions 4/373 dead transitions. [2024-10-31 22:15:33,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 373 transitions, 1944 flow [2024-10-31 22:15:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2024-10-31 22:15:33,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855855855855855 [2024-10-31 22:15:33,987 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 983 transitions. [2024-10-31 22:15:33,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 373 transitions, 1944 flow [2024-10-31 22:15:34,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 373 transitions, 1898 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-31 22:15:34,008 INFO L231 Difference]: Finished difference. Result has 259 places, 357 transitions, 1882 flow [2024-10-31 22:15:34,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1882, PETRI_PLACES=259, PETRI_TRANSITIONS=357} [2024-10-31 22:15:34,012 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2024-10-31 22:15:34,012 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 357 transitions, 1882 flow [2024-10-31 22:15:34,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:34,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:34,014 INFO L204 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] [2024-10-31 22:15:34,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:15:34,014 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:34,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1992287029, now seen corresponding path program 1 times [2024-10-31 22:15:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:34,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006798716] [2024-10-31 22:15:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:34,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:15:34,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006798716] [2024-10-31 22:15:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006798716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:34,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:34,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:34,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300605937] [2024-10-31 22:15:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:34,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:34,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:34,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-10-31 22:15:34,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 357 transitions, 1882 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:34,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:34,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-10-31 22:15:34,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:36,255 INFO L124 PetriNetUnfolderBase]: 1241/4215 cut-off events. [2024-10-31 22:15:36,255 INFO L125 PetriNetUnfolderBase]: For 4889/5017 co-relation queries the response was YES. [2024-10-31 22:15:36,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11217 conditions, 4215 events. 1241/4215 cut-off events. For 4889/5017 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 32069 event pairs, 297 based on Foata normal form. 22/4088 useless extension candidates. Maximal degree in co-relation 10956. Up to 2056 conditions per place. [2024-10-31 22:15:36,292 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 171 selfloop transitions, 71 changer transitions 0/418 dead transitions. [2024-10-31 22:15:36,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 418 transitions, 2720 flow [2024-10-31 22:15:36,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2024-10-31 22:15:36,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8495495495495495 [2024-10-31 22:15:36,296 INFO L175 Difference]: Start difference. First operand has 259 places, 357 transitions, 1882 flow. Second operand 6 states and 943 transitions. [2024-10-31 22:15:36,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 418 transitions, 2720 flow [2024-10-31 22:15:36,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 418 transitions, 2624 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:36,332 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2462 flow [2024-10-31 22:15:36,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2462, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2024-10-31 22:15:36,334 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2024-10-31 22:15:36,334 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2462 flow [2024-10-31 22:15:36,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:36,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:36,335 INFO L204 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] [2024-10-31 22:15:36,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:15:36,335 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:36,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash -102312949, now seen corresponding path program 1 times [2024-10-31 22:15:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:36,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656613324] [2024-10-31 22:15:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:36,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:15:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:37,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656613324] [2024-10-31 22:15:37,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656613324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:37,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:37,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:15:37,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661614528] [2024-10-31 22:15:37,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:37,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:15:37,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:37,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:15:37,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:15:39,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:15:39,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2462 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:39,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:39,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:15:39,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:42,019 INFO L124 PetriNetUnfolderBase]: 2197/8404 cut-off events. [2024-10-31 22:15:42,023 INFO L125 PetriNetUnfolderBase]: For 10569/10810 co-relation queries the response was YES. [2024-10-31 22:15:42,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22757 conditions, 8404 events. 2197/8404 cut-off events. For 10569/10810 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 77903 event pairs, 317 based on Foata normal form. 75/8346 useless extension candidates. Maximal degree in co-relation 22479. Up to 1360 conditions per place. [2024-10-31 22:15:42,146 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 82 selfloop transitions, 15 changer transitions 4/481 dead transitions. [2024-10-31 22:15:42,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 481 transitions, 2838 flow [2024-10-31 22:15:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:15:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:15:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-10-31 22:15:42,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-10-31 22:15:42,150 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2462 flow. Second operand 9 states and 1475 transitions. [2024-10-31 22:15:42,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 481 transitions, 2838 flow [2024-10-31 22:15:42,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 481 transitions, 2756 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:42,252 INFO L231 Difference]: Finished difference. Result has 284 places, 425 transitions, 2498 flow [2024-10-31 22:15:42,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2498, PETRI_PLACES=284, PETRI_TRANSITIONS=425} [2024-10-31 22:15:42,254 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2024-10-31 22:15:42,254 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 425 transitions, 2498 flow [2024-10-31 22:15:42,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:42,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:42,255 INFO L204 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] [2024-10-31 22:15:42,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:42,256 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:42,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1774045505, now seen corresponding path program 2 times [2024-10-31 22:15:42,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:42,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612278852] [2024-10-31 22:15:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:42,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:15:42,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:42,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612278852] [2024-10-31 22:15:42,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612278852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:42,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:42,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:15:42,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402465457] [2024-10-31 22:15:42,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:42,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:15:42,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:42,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:15:42,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:15:45,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-31 22:15:45,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 425 transitions, 2498 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:45,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-31 22:15:45,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand