./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:23,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:23,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:50:23,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:23,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:23,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:23,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:23,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:23,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:23,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:23,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:23,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:23,501 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:23,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:23,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:23,503 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:23,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:23,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:23,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:23,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:23,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:23,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:23,507 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:50:23,507 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:23,507 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:23,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:23,508 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:23,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:23,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:23,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:23,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:23,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:23,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:23,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:23,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:23,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:23,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:23,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:23,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:23,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:23,522 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:23,523 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_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2023-11-19 07:50:23,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:23,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:23,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:23,795 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:23,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:23,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-19 07:50:26,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:27,246 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:27,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-19 07:50:27,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/data/7df0929f8/bf9b8d6dd6e64dac9ba407eb7559cc97/FLAG47138b1b9 [2023-11-19 07:50:27,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/data/7df0929f8/bf9b8d6dd6e64dac9ba407eb7559cc97 [2023-11-19 07:50:27,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:27,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:27,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:27,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:27,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:27,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:27" (1/1) ... [2023-11-19 07:50:27,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c99cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:27, skipping insertion in model container [2023-11-19 07:50:27,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:27" (1/1) ... [2023-11-19 07:50:27,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:28,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:28,035 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:28,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:28,207 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:28,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28 WrapperNode [2023-11-19 07:50:28,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:28,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:28,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:28,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:28,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,301 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2023-11-19 07:50:28,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:28,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:28,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:28,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:28,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:28,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:28,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:28,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:28,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:28,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:28,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:50:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:50:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:50:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:50:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:50:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:50:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:28,469 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:50:28,649 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:28,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:28,914 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:28,925 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:28,934 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:50:28,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:28 BoogieIcfgContainer [2023-11-19 07:50:28,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:28,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:28,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:28,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:28,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:27" (1/3) ... [2023-11-19 07:50:28,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6809d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:28, skipping insertion in model container [2023-11-19 07:50:28,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (2/3) ... [2023-11-19 07:50:28,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6809d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:28, skipping insertion in model container [2023-11-19 07:50:28,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:28" (3/3) ... [2023-11-19 07:50:28,953 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-11-19 07:50:28,964 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:50:28,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:28,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:50:28,978 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:50:29,062 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:50:29,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 182 flow [2023-11-19 07:50:29,219 INFO L124 PetriNetUnfolderBase]: 1/91 cut-off events. [2023-11-19 07:50:29,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:29,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 1/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-19 07:50:29,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 182 flow [2023-11-19 07:50:29,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 86 transitions, 175 flow [2023-11-19 07:50:29,239 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:29,253 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 86 transitions, 175 flow [2023-11-19 07:50:29,259 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 86 transitions, 175 flow [2023-11-19 07:50:29,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 175 flow [2023-11-19 07:50:29,311 INFO L124 PetriNetUnfolderBase]: 1/86 cut-off events. [2023-11-19 07:50:29,311 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:29,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-11-19 07:50:29,319 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2023-11-19 07:50:36,014 INFO L134 LiptonReduction]: Checked pairs total: 3054 [2023-11-19 07:50:36,015 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-11-19 07:50:36,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:36,052 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1af1d8e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:36,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:50:36,064 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:50:36,064 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-11-19 07:50:36,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:36,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:36,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:36,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:36,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash 647198450, now seen corresponding path program 1 times [2023-11-19 07:50:36,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:36,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273214508] [2023-11-19 07:50:36,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:37,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273214508] [2023-11-19 07:50:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273214508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:37,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:50:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140627195] [2023-11-19 07:50:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:37,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:50:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:50:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:50:37,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 163 [2023-11-19 07:50:37,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:37,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 163 [2023-11-19 07:50:37,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:37,530 INFO L124 PetriNetUnfolderBase]: 72/186 cut-off events. [2023-11-19 07:50:37,531 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:37,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 186 events. 72/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 743 event pairs, 19 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 348. Up to 117 conditions per place. [2023-11-19 07:50:37,535 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 20 selfloop transitions, 22 changer transitions 4/49 dead transitions. [2023-11-19 07:50:37,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 49 transitions, 193 flow [2023-11-19 07:50:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:50:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2023-11-19 07:50:37,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081799591002045 [2023-11-19 07:50:37,557 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2023-11-19 07:50:37,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2023-11-19 07:50:37,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:37,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2023-11-19 07:50:37,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,579 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 497 transitions. [2023-11-19 07:50:37,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 49 transitions, 193 flow [2023-11-19 07:50:37,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 49 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:50:37,585 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-11-19 07:50:37,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-11-19 07:50:37,591 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-11-19 07:50:37,591 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-11-19 07:50:37,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:37,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:37,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:50:37,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:37,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:37,594 INFO L85 PathProgramCache]: Analyzing trace with hash 153495813, now seen corresponding path program 1 times [2023-11-19 07:50:37,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:37,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403034997] [2023-11-19 07:50:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:37,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:37,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403034997] [2023-11-19 07:50:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403034997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:50:37,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266158128] [2023-11-19 07:50:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:37,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:50:37,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:50:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:50:38,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 163 [2023-11-19 07:50:38,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:38,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 163 [2023-11-19 07:50:38,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:38,304 INFO L124 PetriNetUnfolderBase]: 113/268 cut-off events. [2023-11-19 07:50:38,305 INFO L125 PetriNetUnfolderBase]: For 102/108 co-relation queries the response was YES. [2023-11-19 07:50:38,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 113/268 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1138 event pairs, 14 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 782. Up to 166 conditions per place. [2023-11-19 07:50:38,314 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 40 selfloop transitions, 29 changer transitions 11/84 dead transitions. [2023-11-19 07:50:38,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 532 flow [2023-11-19 07:50:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:50:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 483 transitions. [2023-11-19 07:50:38,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4938650306748466 [2023-11-19 07:50:38,323 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 483 transitions. [2023-11-19 07:50:38,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 483 transitions. [2023-11-19 07:50:38,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:38,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 483 transitions. [2023-11-19 07:50:38,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,332 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,333 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 483 transitions. [2023-11-19 07:50:38,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 532 flow [2023-11-19 07:50:38,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:38,347 INFO L231 Difference]: Finished difference. Result has 43 places, 65 transitions, 446 flow [2023-11-19 07:50:38,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=43, PETRI_TRANSITIONS=65} [2023-11-19 07:50:38,352 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-11-19 07:50:38,352 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 65 transitions, 446 flow [2023-11-19 07:50:38,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:38,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:38,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:50:38,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:38,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1959840748, now seen corresponding path program 1 times [2023-11-19 07:50:38,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:38,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408469797] [2023-11-19 07:50:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:39,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:39,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408469797] [2023-11-19 07:50:39,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408469797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:39,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:39,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:39,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739761689] [2023-11-19 07:50:39,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:39,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:39,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:39,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:39,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:39,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:39,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 65 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:39,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:39,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:39,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:40,034 INFO L124 PetriNetUnfolderBase]: 149/362 cut-off events. [2023-11-19 07:50:40,034 INFO L125 PetriNetUnfolderBase]: For 430/432 co-relation queries the response was YES. [2023-11-19 07:50:40,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 362 events. 149/362 cut-off events. For 430/432 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1759 event pairs, 6 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 1420. Up to 116 conditions per place. [2023-11-19 07:50:40,043 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 85 selfloop transitions, 41 changer transitions 20/150 dead transitions. [2023-11-19 07:50:40,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 150 transitions, 1298 flow [2023-11-19 07:50:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 761 transitions. [2023-11-19 07:50:40,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4244283324037925 [2023-11-19 07:50:40,049 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 761 transitions. [2023-11-19 07:50:40,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 761 transitions. [2023-11-19 07:50:40,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:40,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 761 transitions. [2023-11-19 07:50:40,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.18181818181819) internal successors, (761), 11 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,061 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,062 INFO L175 Difference]: Start difference. First operand has 43 places, 65 transitions, 446 flow. Second operand 11 states and 761 transitions. [2023-11-19 07:50:40,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 150 transitions, 1298 flow [2023-11-19 07:50:40,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 150 transitions, 1262 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:40,084 INFO L231 Difference]: Finished difference. Result has 60 places, 92 transitions, 774 flow [2023-11-19 07:50:40,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=774, PETRI_PLACES=60, PETRI_TRANSITIONS=92} [2023-11-19 07:50:40,086 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2023-11-19 07:50:40,091 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 92 transitions, 774 flow [2023-11-19 07:50:40,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:40,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:40,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:50:40,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:40,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash 582585388, now seen corresponding path program 2 times [2023-11-19 07:50:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:40,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662403198] [2023-11-19 07:50:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:40,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:41,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:41,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662403198] [2023-11-19 07:50:41,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662403198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:41,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:41,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:41,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206864685] [2023-11-19 07:50:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:41,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:41,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:41,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:41,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:41,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:41,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 92 transitions, 774 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:41,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:41,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:42,064 INFO L124 PetriNetUnfolderBase]: 143/367 cut-off events. [2023-11-19 07:50:42,065 INFO L125 PetriNetUnfolderBase]: For 970/972 co-relation queries the response was YES. [2023-11-19 07:50:42,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1799 conditions, 367 events. 143/367 cut-off events. For 970/972 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1860 event pairs, 11 based on Foata normal form. 6/373 useless extension candidates. Maximal degree in co-relation 1772. Up to 126 conditions per place. [2023-11-19 07:50:42,070 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 58 selfloop transitions, 66 changer transitions 24/152 dead transitions. [2023-11-19 07:50:42,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 152 transitions, 1538 flow [2023-11-19 07:50:42,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 762 transitions. [2023-11-19 07:50:42,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42498605688789737 [2023-11-19 07:50:42,074 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 762 transitions. [2023-11-19 07:50:42,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 762 transitions. [2023-11-19 07:50:42,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:42,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 762 transitions. [2023-11-19 07:50:42,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.27272727272727) internal successors, (762), 11 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:42,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:42,083 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:42,083 INFO L175 Difference]: Start difference. First operand has 60 places, 92 transitions, 774 flow. Second operand 11 states and 762 transitions. [2023-11-19 07:50:42,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 152 transitions, 1538 flow [2023-11-19 07:50:42,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 152 transitions, 1517 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-19 07:50:42,099 INFO L231 Difference]: Finished difference. Result has 73 places, 101 transitions, 1081 flow [2023-11-19 07:50:42,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1081, PETRI_PLACES=73, PETRI_TRANSITIONS=101} [2023-11-19 07:50:42,100 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-11-19 07:50:42,100 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 101 transitions, 1081 flow [2023-11-19 07:50:42,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:42,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:42,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:42,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:50:42,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:42,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:42,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1116706076, now seen corresponding path program 1 times [2023-11-19 07:50:42,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:42,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214450551] [2023-11-19 07:50:42,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:42,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:42,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:42,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214450551] [2023-11-19 07:50:42,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214450551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:42,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166414766] [2023-11-19 07:50:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:42,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:43,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:43,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 101 transitions, 1081 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:43,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:43,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:43,396 INFO L124 PetriNetUnfolderBase]: 171/407 cut-off events. [2023-11-19 07:50:43,398 INFO L125 PetriNetUnfolderBase]: For 1887/1893 co-relation queries the response was YES. [2023-11-19 07:50:43,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2368 conditions, 407 events. 171/407 cut-off events. For 1887/1893 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2052 event pairs, 4 based on Foata normal form. 13/419 useless extension candidates. Maximal degree in co-relation 2335. Up to 143 conditions per place. [2023-11-19 07:50:43,405 INFO L140 encePairwiseOnDemand]: 153/163 looper letters, 116 selfloop transitions, 41 changer transitions 17/179 dead transitions. [2023-11-19 07:50:43,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 179 transitions, 2262 flow [2023-11-19 07:50:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:50:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:50:43,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 692 transitions. [2023-11-19 07:50:43,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4245398773006135 [2023-11-19 07:50:43,410 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 692 transitions. [2023-11-19 07:50:43,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 692 transitions. [2023-11-19 07:50:43,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:43,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 692 transitions. [2023-11-19 07:50:43,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.2) internal successors, (692), 10 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,418 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,418 INFO L175 Difference]: Start difference. First operand has 73 places, 101 transitions, 1081 flow. Second operand 10 states and 692 transitions. [2023-11-19 07:50:43,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 179 transitions, 2262 flow [2023-11-19 07:50:43,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 179 transitions, 2201 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-19 07:50:43,453 INFO L231 Difference]: Finished difference. Result has 79 places, 119 transitions, 1346 flow [2023-11-19 07:50:43,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1346, PETRI_PLACES=79, PETRI_TRANSITIONS=119} [2023-11-19 07:50:43,457 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-11-19 07:50:43,457 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 119 transitions, 1346 flow [2023-11-19 07:50:43,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:43,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:43,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:50:43,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:43,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:43,459 INFO L85 PathProgramCache]: Analyzing trace with hash 630846808, now seen corresponding path program 3 times [2023-11-19 07:50:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:43,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135145592] [2023-11-19 07:50:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:44,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:44,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135145592] [2023-11-19 07:50:44,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135145592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:44,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:44,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:44,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104395666] [2023-11-19 07:50:44,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:44,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:44,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:44,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:44,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:44,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 119 transitions, 1346 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:44,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:44,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:44,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:44,812 INFO L124 PetriNetUnfolderBase]: 166/433 cut-off events. [2023-11-19 07:50:44,813 INFO L125 PetriNetUnfolderBase]: For 2652/2652 co-relation queries the response was YES. [2023-11-19 07:50:44,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 433 events. 166/433 cut-off events. For 2652/2652 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2359 event pairs, 20 based on Foata normal form. 10/442 useless extension candidates. Maximal degree in co-relation 2801. Up to 164 conditions per place. [2023-11-19 07:50:44,821 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 81 selfloop transitions, 54 changer transitions 34/174 dead transitions. [2023-11-19 07:50:44,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 2296 flow [2023-11-19 07:50:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 756 transitions. [2023-11-19 07:50:44,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4216397099832683 [2023-11-19 07:50:44,827 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 756 transitions. [2023-11-19 07:50:44,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 756 transitions. [2023-11-19 07:50:44,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:44,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 756 transitions. [2023-11-19 07:50:44,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 68.72727272727273) internal successors, (756), 11 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:44,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:44,838 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:44,838 INFO L175 Difference]: Start difference. First operand has 79 places, 119 transitions, 1346 flow. Second operand 11 states and 756 transitions. [2023-11-19 07:50:44,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 2296 flow [2023-11-19 07:50:44,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 174 transitions, 2237 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:50:44,868 INFO L231 Difference]: Finished difference. Result has 88 places, 114 transitions, 1381 flow [2023-11-19 07:50:44,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1381, PETRI_PLACES=88, PETRI_TRANSITIONS=114} [2023-11-19 07:50:44,870 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 64 predicate places. [2023-11-19 07:50:44,870 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 114 transitions, 1381 flow [2023-11-19 07:50:44,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:44,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:44,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:44,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:50:44,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:44,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1287977414, now seen corresponding path program 4 times [2023-11-19 07:50:44,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:44,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673905772] [2023-11-19 07:50:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:45,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673905772] [2023-11-19 07:50:45,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673905772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:45,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:45,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:45,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797859642] [2023-11-19 07:50:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:45,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:45,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:45,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:46,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:46,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 114 transitions, 1381 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:46,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:46,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:46,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:46,414 INFO L124 PetriNetUnfolderBase]: 168/450 cut-off events. [2023-11-19 07:50:46,414 INFO L125 PetriNetUnfolderBase]: For 3584/3587 co-relation queries the response was YES. [2023-11-19 07:50:46,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 450 events. 168/450 cut-off events. For 3584/3587 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2560 event pairs, 16 based on Foata normal form. 11/461 useless extension candidates. Maximal degree in co-relation 3121. Up to 172 conditions per place. [2023-11-19 07:50:46,424 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 107 selfloop transitions, 48 changer transitions 23/183 dead transitions. [2023-11-19 07:50:46,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 2582 flow [2023-11-19 07:50:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 759 transitions. [2023-11-19 07:50:46,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233128834355828 [2023-11-19 07:50:46,430 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 759 transitions. [2023-11-19 07:50:46,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 759 transitions. [2023-11-19 07:50:46,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:46,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 759 transitions. [2023-11-19 07:50:46,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.0) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:46,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:46,441 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:46,441 INFO L175 Difference]: Start difference. First operand has 88 places, 114 transitions, 1381 flow. Second operand 11 states and 759 transitions. [2023-11-19 07:50:46,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 2582 flow [2023-11-19 07:50:46,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 183 transitions, 2473 flow, removed 6 selfloop flow, removed 8 redundant places. [2023-11-19 07:50:46,482 INFO L231 Difference]: Finished difference. Result has 94 places, 127 transitions, 1658 flow [2023-11-19 07:50:46,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1658, PETRI_PLACES=94, PETRI_TRANSITIONS=127} [2023-11-19 07:50:46,484 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-11-19 07:50:46,484 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 127 transitions, 1658 flow [2023-11-19 07:50:46,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:46,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:46,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:46,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:50:46,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:46,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:46,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1691970768, now seen corresponding path program 2 times [2023-11-19 07:50:46,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964740210] [2023-11-19 07:50:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964740210] [2023-11-19 07:50:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964740210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:47,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171753621] [2023-11-19 07:50:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:47,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:47,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:47,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:47,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 127 transitions, 1658 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:47,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:47,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:47,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:48,247 INFO L124 PetriNetUnfolderBase]: 186/509 cut-off events. [2023-11-19 07:50:48,248 INFO L125 PetriNetUnfolderBase]: For 4110/4124 co-relation queries the response was YES. [2023-11-19 07:50:48,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 509 events. 186/509 cut-off events. For 4110/4124 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3063 event pairs, 4 based on Foata normal form. 10/519 useless extension candidates. Maximal degree in co-relation 3631. Up to 192 conditions per place. [2023-11-19 07:50:48,259 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 120 selfloop transitions, 56 changer transitions 38/219 dead transitions. [2023-11-19 07:50:48,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 219 transitions, 3294 flow [2023-11-19 07:50:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 767 transitions. [2023-11-19 07:50:48,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4277746793084216 [2023-11-19 07:50:48,264 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 767 transitions. [2023-11-19 07:50:48,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 767 transitions. [2023-11-19 07:50:48,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:48,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 767 transitions. [2023-11-19 07:50:48,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.72727272727273) internal successors, (767), 11 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,274 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,274 INFO L175 Difference]: Start difference. First operand has 94 places, 127 transitions, 1658 flow. Second operand 11 states and 767 transitions. [2023-11-19 07:50:48,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 219 transitions, 3294 flow [2023-11-19 07:50:48,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 219 transitions, 3206 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-11-19 07:50:48,328 INFO L231 Difference]: Finished difference. Result has 106 places, 147 transitions, 2068 flow [2023-11-19 07:50:48,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1597, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2068, PETRI_PLACES=106, PETRI_TRANSITIONS=147} [2023-11-19 07:50:48,331 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 82 predicate places. [2023-11-19 07:50:48,332 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 147 transitions, 2068 flow [2023-11-19 07:50:48,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:48,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:48,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:50:48,339 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:48,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:48,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1343628444, now seen corresponding path program 3 times [2023-11-19 07:50:48,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:48,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827533947] [2023-11-19 07:50:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:48,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:48,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827533947] [2023-11-19 07:50:48,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827533947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:48,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:48,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903778493] [2023-11-19 07:50:48,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:48,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:48,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:48,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:49,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:49,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 147 transitions, 2068 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:49,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:49,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:49,879 INFO L124 PetriNetUnfolderBase]: 153/449 cut-off events. [2023-11-19 07:50:49,879 INFO L125 PetriNetUnfolderBase]: For 4561/4579 co-relation queries the response was YES. [2023-11-19 07:50:49,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3470 conditions, 449 events. 153/449 cut-off events. For 4561/4579 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2712 event pairs, 8 based on Foata normal form. 8/457 useless extension candidates. Maximal degree in co-relation 3420. Up to 182 conditions per place. [2023-11-19 07:50:49,888 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 104 selfloop transitions, 65 changer transitions 28/202 dead transitions. [2023-11-19 07:50:49,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 202 transitions, 3221 flow [2023-11-19 07:50:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 757 transitions. [2023-11-19 07:50:49,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4221974344673731 [2023-11-19 07:50:49,893 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 757 transitions. [2023-11-19 07:50:49,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 757 transitions. [2023-11-19 07:50:49,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:49,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 757 transitions. [2023-11-19 07:50:49,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 68.81818181818181) internal successors, (757), 11 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,902 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,903 INFO L175 Difference]: Start difference. First operand has 106 places, 147 transitions, 2068 flow. Second operand 11 states and 757 transitions. [2023-11-19 07:50:49,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 202 transitions, 3221 flow [2023-11-19 07:50:49,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 202 transitions, 3134 flow, removed 21 selfloop flow, removed 5 redundant places. [2023-11-19 07:50:49,953 INFO L231 Difference]: Finished difference. Result has 114 places, 149 transitions, 2211 flow [2023-11-19 07:50:49,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1990, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2211, PETRI_PLACES=114, PETRI_TRANSITIONS=149} [2023-11-19 07:50:49,955 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 90 predicate places. [2023-11-19 07:50:49,955 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 149 transitions, 2211 flow [2023-11-19 07:50:49,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:49,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:49,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:50:49,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:49,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1274609424, now seen corresponding path program 4 times [2023-11-19 07:50:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:49,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354338061] [2023-11-19 07:50:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:50,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:50,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354338061] [2023-11-19 07:50:50,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354338061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:50,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:50,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932283486] [2023-11-19 07:50:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:50,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:51,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:51,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 149 transitions, 2211 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:51,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:51,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:51,767 INFO L124 PetriNetUnfolderBase]: 158/477 cut-off events. [2023-11-19 07:50:51,767 INFO L125 PetriNetUnfolderBase]: For 5232/5238 co-relation queries the response was YES. [2023-11-19 07:50:51,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 477 events. 158/477 cut-off events. For 5232/5238 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2935 event pairs, 6 based on Foata normal form. 12/489 useless extension candidates. Maximal degree in co-relation 3804. Up to 172 conditions per place. [2023-11-19 07:50:51,778 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 100 selfloop transitions, 81 changer transitions 22/208 dead transitions. [2023-11-19 07:50:51,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 208 transitions, 3456 flow [2023-11-19 07:50:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:50:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:50:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 696 transitions. [2023-11-19 07:50:51,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269938650306748 [2023-11-19 07:50:51,783 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 696 transitions. [2023-11-19 07:50:51,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 696 transitions. [2023-11-19 07:50:51,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:51,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 696 transitions. [2023-11-19 07:50:51,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.6) internal successors, (696), 10 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,792 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,792 INFO L175 Difference]: Start difference. First operand has 114 places, 149 transitions, 2211 flow. Second operand 10 states and 696 transitions. [2023-11-19 07:50:51,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 208 transitions, 3456 flow [2023-11-19 07:50:51,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 208 transitions, 3379 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-19 07:50:51,854 INFO L231 Difference]: Finished difference. Result has 120 places, 161 transitions, 2597 flow [2023-11-19 07:50:51,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2147, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2597, PETRI_PLACES=120, PETRI_TRANSITIONS=161} [2023-11-19 07:50:51,857 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 96 predicate places. [2023-11-19 07:50:51,857 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 161 transitions, 2597 flow [2023-11-19 07:50:51,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:51,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:51,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:50:51,858 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:51,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2140310838, now seen corresponding path program 5 times [2023-11-19 07:50:51,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:51,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053973327] [2023-11-19 07:50:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:51,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:52,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:52,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053973327] [2023-11-19 07:50:52,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053973327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:52,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:52,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:52,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470680807] [2023-11-19 07:50:52,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:52,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:52,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:53,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:53,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 161 transitions, 2597 flow. Second operand has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:53,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:53,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:53,439 INFO L124 PetriNetUnfolderBase]: 141/435 cut-off events. [2023-11-19 07:50:53,439 INFO L125 PetriNetUnfolderBase]: For 5895/5897 co-relation queries the response was YES. [2023-11-19 07:50:53,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3727 conditions, 435 events. 141/435 cut-off events. For 5895/5897 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2676 event pairs, 11 based on Foata normal form. 10/445 useless extension candidates. Maximal degree in co-relation 3673. Up to 175 conditions per place. [2023-11-19 07:50:53,449 INFO L140 encePairwiseOnDemand]: 150/163 looper letters, 104 selfloop transitions, 64 changer transitions 21/196 dead transitions. [2023-11-19 07:50:53,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 196 transitions, 3529 flow [2023-11-19 07:50:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 751 transitions. [2023-11-19 07:50:53,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41885108756274403 [2023-11-19 07:50:53,458 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 751 transitions. [2023-11-19 07:50:53,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 751 transitions. [2023-11-19 07:50:53,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:53,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 751 transitions. [2023-11-19 07:50:53,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 68.27272727272727) internal successors, (751), 11 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,469 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,470 INFO L175 Difference]: Start difference. First operand has 120 places, 161 transitions, 2597 flow. Second operand 11 states and 751 transitions. [2023-11-19 07:50:53,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 196 transitions, 3529 flow [2023-11-19 07:50:53,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 196 transitions, 3427 flow, removed 9 selfloop flow, removed 5 redundant places. [2023-11-19 07:50:53,543 INFO L231 Difference]: Finished difference. Result has 129 places, 152 transitions, 2524 flow [2023-11-19 07:50:53,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2514, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2524, PETRI_PLACES=129, PETRI_TRANSITIONS=152} [2023-11-19 07:50:53,544 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 105 predicate places. [2023-11-19 07:50:53,544 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 152 transitions, 2524 flow [2023-11-19 07:50:53,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:53,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:53,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:50:53,546 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:53,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1665762276, now seen corresponding path program 5 times [2023-11-19 07:50:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:53,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207401840] [2023-11-19 07:50:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:54,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207401840] [2023-11-19 07:50:54,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207401840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:54,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:54,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:54,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030583397] [2023-11-19 07:50:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:54,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:54,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:54,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2023-11-19 07:50:54,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 152 transitions, 2524 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:54,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:54,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2023-11-19 07:50:54,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:55,421 INFO L124 PetriNetUnfolderBase]: 130/394 cut-off events. [2023-11-19 07:50:55,421 INFO L125 PetriNetUnfolderBase]: For 5623/5625 co-relation queries the response was YES. [2023-11-19 07:50:55,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 394 events. 130/394 cut-off events. For 5623/5625 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2290 event pairs, 0 based on Foata normal form. 10/404 useless extension candidates. Maximal degree in co-relation 3467. Up to 158 conditions per place. [2023-11-19 07:50:55,431 INFO L140 encePairwiseOnDemand]: 150/163 looper letters, 97 selfloop transitions, 68 changer transitions 33/200 dead transitions. [2023-11-19 07:50:55,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 200 transitions, 3690 flow [2023-11-19 07:50:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:50:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:50:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 703 transitions. [2023-11-19 07:50:55,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312883435582822 [2023-11-19 07:50:55,434 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 703 transitions. [2023-11-19 07:50:55,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 703 transitions. [2023-11-19 07:50:55,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:55,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 703 transitions. [2023-11-19 07:50:55,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.3) internal successors, (703), 10 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:55,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:55,447 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:55,448 INFO L175 Difference]: Start difference. First operand has 129 places, 152 transitions, 2524 flow. Second operand 10 states and 703 transitions. [2023-11-19 07:50:55,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 200 transitions, 3690 flow [2023-11-19 07:50:55,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 200 transitions, 3319 flow, removed 30 selfloop flow, removed 16 redundant places. [2023-11-19 07:50:55,514 INFO L231 Difference]: Finished difference. Result has 119 places, 144 transitions, 2335 flow [2023-11-19 07:50:55,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2251, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2335, PETRI_PLACES=119, PETRI_TRANSITIONS=144} [2023-11-19 07:50:55,516 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 95 predicate places. [2023-11-19 07:50:55,517 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 144 transitions, 2335 flow [2023-11-19 07:50:55,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:55,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:55,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:55,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:50:55,519 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:55,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:55,519 INFO L85 PathProgramCache]: Analyzing trace with hash -955906820, now seen corresponding path program 1 times [2023-11-19 07:50:55,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:55,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759860943] [2023-11-19 07:50:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:55,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:56,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759860943] [2023-11-19 07:50:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759860943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:56,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:50:56,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787479561] [2023-11-19 07:50:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:56,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:50:56,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:50:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:50:56,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-11-19 07:50:56,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 144 transitions, 2335 flow. Second operand has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:56,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:56,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-11-19 07:50:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:56,925 INFO L124 PetriNetUnfolderBase]: 116/344 cut-off events. [2023-11-19 07:50:56,925 INFO L125 PetriNetUnfolderBase]: For 4843/4843 co-relation queries the response was YES. [2023-11-19 07:50:56,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 344 events. 116/344 cut-off events. For 4843/4843 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1950 event pairs, 8 based on Foata normal form. 1/345 useless extension candidates. Maximal degree in co-relation 2925. Up to 125 conditions per place. [2023-11-19 07:50:56,934 INFO L140 encePairwiseOnDemand]: 153/163 looper letters, 85 selfloop transitions, 66 changer transitions 20/177 dead transitions. [2023-11-19 07:50:56,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 177 transitions, 3285 flow [2023-11-19 07:50:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:50:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:50:56,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 608 transitions. [2023-11-19 07:50:56,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662576687116564 [2023-11-19 07:50:56,937 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 608 transitions. [2023-11-19 07:50:56,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 608 transitions. [2023-11-19 07:50:56,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:56,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 608 transitions. [2023-11-19 07:50:56,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.0) internal successors, (608), 8 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:56,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:56,943 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:56,944 INFO L175 Difference]: Start difference. First operand has 119 places, 144 transitions, 2335 flow. Second operand 8 states and 608 transitions. [2023-11-19 07:50:56,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 177 transitions, 3285 flow [2023-11-19 07:50:56,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 177 transitions, 2810 flow, removed 60 selfloop flow, removed 18 redundant places. [2023-11-19 07:50:56,998 INFO L231 Difference]: Finished difference. Result has 108 places, 148 transitions, 2298 flow [2023-11-19 07:50:56,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1953, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2298, PETRI_PLACES=108, PETRI_TRANSITIONS=148} [2023-11-19 07:50:57,000 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 84 predicate places. [2023-11-19 07:50:57,000 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 148 transitions, 2298 flow [2023-11-19 07:50:57,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:57,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:57,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:57,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:50:57,002 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:57,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:57,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2097296116, now seen corresponding path program 2 times [2023-11-19 07:50:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:57,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15338406] [2023-11-19 07:50:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:57,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:57,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:57,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15338406] [2023-11-19 07:50:57,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15338406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:57,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:57,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:57,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774939049] [2023-11-19 07:50:57,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:57,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:57,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:58,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:50:58,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 148 transitions, 2298 flow. Second operand has 10 states, 10 states have (on average 64.5) internal successors, (645), 10 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:58,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:50:58,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:58,508 INFO L124 PetriNetUnfolderBase]: 100/327 cut-off events. [2023-11-19 07:50:58,509 INFO L125 PetriNetUnfolderBase]: For 4192/4194 co-relation queries the response was YES. [2023-11-19 07:50:58,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2628 conditions, 327 events. 100/327 cut-off events. For 4192/4194 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1929 event pairs, 7 based on Foata normal form. 3/330 useless extension candidates. Maximal degree in co-relation 2593. Up to 110 conditions per place. [2023-11-19 07:50:58,527 INFO L140 encePairwiseOnDemand]: 154/163 looper letters, 63 selfloop transitions, 29 changer transitions 79/177 dead transitions. [2023-11-19 07:50:58,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 177 transitions, 2942 flow [2023-11-19 07:50:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:50:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 739 transitions. [2023-11-19 07:50:58,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4121583937534858 [2023-11-19 07:50:58,531 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 739 transitions. [2023-11-19 07:50:58,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 739 transitions. [2023-11-19 07:50:58,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:58,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 739 transitions. [2023-11-19 07:50:58,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 67.18181818181819) internal successors, (739), 11 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,543 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,543 INFO L175 Difference]: Start difference. First operand has 108 places, 148 transitions, 2298 flow. Second operand 11 states and 739 transitions. [2023-11-19 07:50:58,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 177 transitions, 2942 flow [2023-11-19 07:50:58,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 177 transitions, 2896 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-11-19 07:50:58,577 INFO L231 Difference]: Finished difference. Result has 116 places, 91 transitions, 1305 flow [2023-11-19 07:50:58,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2254, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1305, PETRI_PLACES=116, PETRI_TRANSITIONS=91} [2023-11-19 07:50:58,578 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-19 07:50:58,579 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 91 transitions, 1305 flow [2023-11-19 07:50:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.5) internal successors, (645), 10 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:58,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:58,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:50:58,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:58,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1479514910, now seen corresponding path program 3 times [2023-11-19 07:50:58,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:58,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376537575] [2023-11-19 07:50:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:58,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376537575] [2023-11-19 07:50:58,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376537575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:58,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:58,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:50:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885004949] [2023-11-19 07:50:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:58,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:50:58,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:50:58,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:50:59,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-11-19 07:50:59,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 91 transitions, 1305 flow. Second operand has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:59,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-11-19 07:50:59,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:59,321 INFO L124 PetriNetUnfolderBase]: 43/170 cut-off events. [2023-11-19 07:50:59,321 INFO L125 PetriNetUnfolderBase]: For 2022/2024 co-relation queries the response was YES. [2023-11-19 07:50:59,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1262 conditions, 170 events. 43/170 cut-off events. For 2022/2024 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 804 event pairs, 7 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 1226. Up to 96 conditions per place. [2023-11-19 07:50:59,324 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 35 selfloop transitions, 21 changer transitions 37/96 dead transitions. [2023-11-19 07:50:59,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 96 transitions, 1530 flow [2023-11-19 07:50:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:50:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:50:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 743 transitions. [2023-11-19 07:50:59,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4558282208588957 [2023-11-19 07:50:59,328 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 743 transitions. [2023-11-19 07:50:59,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 743 transitions. [2023-11-19 07:50:59,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:59,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 743 transitions. [2023-11-19 07:50:59,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.3) internal successors, (743), 10 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,335 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,335 INFO L175 Difference]: Start difference. First operand has 116 places, 91 transitions, 1305 flow. Second operand 10 states and 743 transitions. [2023-11-19 07:50:59,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 96 transitions, 1530 flow [2023-11-19 07:50:59,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 96 transitions, 1371 flow, removed 9 selfloop flow, removed 17 redundant places. [2023-11-19 07:50:59,354 INFO L231 Difference]: Finished difference. Result has 105 places, 59 transitions, 848 flow [2023-11-19 07:50:59,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=848, PETRI_PLACES=105, PETRI_TRANSITIONS=59} [2023-11-19 07:50:59,356 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 81 predicate places. [2023-11-19 07:50:59,356 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 59 transitions, 848 flow [2023-11-19 07:50:59,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:59,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:50:59,358 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 07:50:59,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash 996258878, now seen corresponding path program 4 times [2023-11-19 07:50:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91462819] [2023-11-19 07:50:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:59,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91462819] [2023-11-19 07:50:59,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91462819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:59,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:50:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931212986] [2023-11-19 07:50:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:59,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:50:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:50:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:51:00,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 163 [2023-11-19 07:51:00,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 59 transitions, 848 flow. Second operand has 10 states, 10 states have (on average 64.5) internal successors, (645), 10 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:00,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:51:00,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 163 [2023-11-19 07:51:00,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:51:00,419 INFO L124 PetriNetUnfolderBase]: 28/103 cut-off events. [2023-11-19 07:51:00,419 INFO L125 PetriNetUnfolderBase]: For 1011/1011 co-relation queries the response was YES. [2023-11-19 07:51:00,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 103 events. 28/103 cut-off events. For 1011/1011 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 370 event pairs, 0 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 754. Up to 36 conditions per place. [2023-11-19 07:51:00,421 INFO L140 encePairwiseOnDemand]: 154/163 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2023-11-19 07:51:00,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 68 transitions, 1072 flow [2023-11-19 07:51:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:51:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 07:51:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 981 transitions. [2023-11-19 07:51:00,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012269938650307 [2023-11-19 07:51:00,424 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 981 transitions. [2023-11-19 07:51:00,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 981 transitions. [2023-11-19 07:51:00,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:51:00,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 981 transitions. [2023-11-19 07:51:00,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.4) internal successors, (981), 15 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:00,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 163.0) internal successors, (2608), 16 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:00,435 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 163.0) internal successors, (2608), 16 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:00,435 INFO L175 Difference]: Start difference. First operand has 105 places, 59 transitions, 848 flow. Second operand 15 states and 981 transitions. [2023-11-19 07:51:00,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 68 transitions, 1072 flow [2023-11-19 07:51:00,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 68 transitions, 870 flow, removed 11 selfloop flow, removed 22 redundant places. [2023-11-19 07:51:00,445 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2023-11-19 07:51:00,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2023-11-19 07:51:00,446 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 59 predicate places. [2023-11-19 07:51:00,446 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2023-11-19 07:51:00,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.5) internal successors, (645), 10 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:00,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-19 07:51:00,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-19 07:51:00,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-19 07:51:00,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-19 07:51:00,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:51:00,451 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 4, 1, 1] [2023-11-19 07:51:00,457 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:51:00,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:51:00,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:51:00 BasicIcfg [2023-11-19 07:51:00,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:51:00,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:51:00,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:51:00,462 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:51:00,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:28" (3/4) ... [2023-11-19 07:51:00,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:51:00,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 07:51:00,476 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 07:51:00,477 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:51:00,477 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:51:00,648 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:51:00,649 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:51:00,649 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:51:00,650 INFO L158 Benchmark]: Toolchain (without parser) took 33351.14ms. Allocated memory was 123.7MB in the beginning and 390.1MB in the end (delta: 266.3MB). Free memory was 84.4MB in the beginning and 201.1MB in the end (delta: -116.7MB). Peak memory consumption was 150.0MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,651 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:51:00,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 907.66ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 56.3MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.24ms. Allocated memory is still 123.7MB. Free memory was 56.3MB in the beginning and 54.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,652 INFO L158 Benchmark]: Boogie Preprocessor took 66.73ms. Allocated memory is still 123.7MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,653 INFO L158 Benchmark]: RCFGBuilder took 569.96ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 117.9MB in the end (delta: -65.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,654 INFO L158 Benchmark]: TraceAbstraction took 31516.66ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 117.4MB in the beginning and 205.3MB in the end (delta: -87.9MB). Peak memory consumption was 146.9MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,654 INFO L158 Benchmark]: Witness Printer took 187.74ms. Allocated memory is still 390.1MB. Free memory was 205.3MB in the beginning and 201.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:51:00,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 907.66ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 56.3MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.24ms. Allocated memory is still 123.7MB. Free memory was 56.3MB in the beginning and 54.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.73ms. Allocated memory is still 123.7MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.96ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 117.9MB in the end (delta: -65.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 31516.66ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 117.4MB in the beginning and 205.3MB in the end (delta: -87.9MB). Peak memory consumption was 146.9MB. Max. memory is 16.1GB. * Witness Printer took 187.74ms. Allocated memory is still 390.1MB. Free memory was 205.3MB in the beginning and 201.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 89 PlacesBefore, 24 PlacesAfterwards, 86 TransitionsBefore, 20 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 8 FixpointIterations, 52 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 3054 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 990, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 294, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 990, independent: 442, independent conditional: 0, independent unconditional: 442, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 294, unknown conditional: 0, unknown unconditional: 294] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 31.3s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2750 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2154 mSDsluCounter, 216 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 535 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6617 IncrementalHoareTripleChecker+Invalid, 7152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 535 mSolverCounterUnsat, 24 mSDtfsCounter, 6617 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2597occurred in iteration=10, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 4442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:51:00,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31432837-728b-4bd4-9d5f-0a3eea54d37d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE