./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme --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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:39,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:39,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:51:39,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:39,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:39,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:39,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:39,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:39,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:39,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:39,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:39,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:39,274 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:39,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:39,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:39,277 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:39,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:39,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:39,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:39,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:39,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:39,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:39,282 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:51:39,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:39,283 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:39,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:39,284 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:39,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:39,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:39,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:39,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:39,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:39,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:39,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:39,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:39,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:39,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:39,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:39,292 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:39,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:39,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:39,293 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_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2023-11-26 11:51:39,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:39,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:39,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:39,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:39,795 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:39,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2023-11-26 11:51:43,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:43,579 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:43,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2023-11-26 11:51:43,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/data/849cc57cd/7edbd295b30b41dcb398d1ef77e78d0b/FLAG6d5b7e084 [2023-11-26 11:51:43,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/data/849cc57cd/7edbd295b30b41dcb398d1ef77e78d0b [2023-11-26 11:51:43,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:43,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:43,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:43,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:43,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:43,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:43" (1/1) ... [2023-11-26 11:51:43,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6775ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:43, skipping insertion in model container [2023-11-26 11:51:43,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:43" (1/1) ... [2023-11-26 11:51:43,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:44,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:44,340 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:44,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:44,519 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:44,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44 WrapperNode [2023-11-26 11:51:44,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:44,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:44,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:44,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:44,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,589 INFO L138 Inliner]: procedures = 265, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2023-11-26 11:51:44,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:44,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:44,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:44,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:44,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:44,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:44,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:44,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:44,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:44,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:44,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:44,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:44,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:44,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:44,731 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 11:51:44,732 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 11:51:44,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:44,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:44,734 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:51:44,936 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:44,939 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:45,263 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:45,290 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:45,290 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:45,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:45 BoogieIcfgContainer [2023-11-26 11:51:45,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:45,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:45,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:45,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:45,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:43" (1/3) ... [2023-11-26 11:51:45,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51de2762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:45, skipping insertion in model container [2023-11-26 11:51:45,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44" (2/3) ... [2023-11-26 11:51:45,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51de2762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:45, skipping insertion in model container [2023-11-26 11:51:45,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:45" (3/3) ... [2023-11-26 11:51:45,303 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2023-11-26 11:51:45,313 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:51:45,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:45,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 11:51:45,326 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:51:45,424 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:51:45,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 218 flow [2023-11-26 11:51:45,527 INFO L124 PetriNetUnfolderBase]: 4/106 cut-off events. [2023-11-26 11:51:45,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:51:45,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 4/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-11-26 11:51:45,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 107 transitions, 218 flow [2023-11-26 11:51:45,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 106 transitions, 215 flow [2023-11-26 11:51:45,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:45,556 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;@5f908c17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:45,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-26 11:51:45,574 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:51:45,574 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2023-11-26 11:51:45,574 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:51:45,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:45,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:45,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:45,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:45,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1382216346, now seen corresponding path program 1 times [2023-11-26 11:51:45,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:45,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204499327] [2023-11-26 11:51:45,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:45,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:45,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204499327] [2023-11-26 11:51:45,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204499327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:45,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:45,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:51:45,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84464431] [2023-11-26 11:51:45,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:45,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:46,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:46,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 107 [2023-11-26 11:51:46,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:46,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 107 [2023-11-26 11:51:46,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:46,160 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2023-11-26 11:51:46,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:51:46,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 171 events. 7/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 343 event pairs, 6 based on Foata normal form. 5/164 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2023-11-26 11:51:46,164 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 10 selfloop transitions, 2 changer transitions 1/104 dead transitions. [2023-11-26 11:51:46,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 235 flow [2023-11-26 11:51:46,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-26 11:51:46,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9221183800623053 [2023-11-26 11:51:46,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-26 11:51:46,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-26 11:51:46,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:46,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-26 11:51:46,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,201 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 215 flow. Second operand 3 states and 296 transitions. [2023-11-26 11:51:46,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 235 flow [2023-11-26 11:51:46,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 104 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:46,210 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 218 flow [2023-11-26 11:51:46,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2023-11-26 11:51:46,216 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2023-11-26 11:51:46,216 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 218 flow [2023-11-26 11:51:46,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:46,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:46,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:46,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:46,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 463896557, now seen corresponding path program 1 times [2023-11-26 11:51:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:46,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879625187] [2023-11-26 11:51:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:46,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:46,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879625187] [2023-11-26 11:51:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879625187] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385321597] [2023-11-26 11:51:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:46,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:46,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:46,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:51:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:46,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:46,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:46,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385321597] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:46,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:46,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 11:51:46,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194333501] [2023-11-26 11:51:46,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:46,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:51:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:51:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:51:46,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-26 11:51:46,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 218 flow. Second operand has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:46,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:46,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-26 11:51:46,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:47,076 INFO L124 PetriNetUnfolderBase]: 7/177 cut-off events. [2023-11-26 11:51:47,076 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:51:47,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 177 events. 7/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 6 based on Foata normal form. 2/168 useless extension candidates. Maximal degree in co-relation 200. Up to 24 conditions per place. [2023-11-26 11:51:47,079 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 14 selfloop transitions, 9 changer transitions 0/111 dead transitions. [2023-11-26 11:51:47,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 282 flow [2023-11-26 11:51:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:51:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 11:51:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 835 transitions. [2023-11-26 11:51:47,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8670820353063343 [2023-11-26 11:51:47,086 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 835 transitions. [2023-11-26 11:51:47,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 835 transitions. [2023-11-26 11:51:47,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:47,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 835 transitions. [2023-11-26 11:51:47,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.77777777777777) internal successors, (835), 9 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:47,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:47,097 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:47,098 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 218 flow. Second operand 9 states and 835 transitions. [2023-11-26 11:51:47,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 282 flow [2023-11-26 11:51:47,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:47,103 INFO L231 Difference]: Finished difference. Result has 117 places, 109 transitions, 266 flow [2023-11-26 11:51:47,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=266, PETRI_PLACES=117, PETRI_TRANSITIONS=109} [2023-11-26 11:51:47,105 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 11 predicate places. [2023-11-26 11:51:47,105 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 109 transitions, 266 flow [2023-11-26 11:51:47,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:47,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:47,107 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:47,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:47,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:47,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:47,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1532137485, now seen corresponding path program 2 times [2023-11-26 11:51:47,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:47,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64665161] [2023-11-26 11:51:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:47,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:47,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:47,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64665161] [2023-11-26 11:51:47,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64665161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:47,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485058669] [2023-11-26 11:51:47,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:51:47,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:47,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:47,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:47,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:51:47,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:51:47,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:47,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:47,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:47,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-26 11:51:47,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-26 11:51:47,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:51:47,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-26 11:51:47,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:51:47,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-26 11:51:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:51:48,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:48,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485058669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:48,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:48,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-26 11:51:48,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236004769] [2023-11-26 11:51:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:48,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:48,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:48,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:51:48,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2023-11-26 11:51:48,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 109 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:48,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:48,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2023-11-26 11:51:48,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:48,575 INFO L124 PetriNetUnfolderBase]: 129/646 cut-off events. [2023-11-26 11:51:48,575 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 11:51:48,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 646 events. 129/646 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3703 event pairs, 46 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 922. Up to 178 conditions per place. [2023-11-26 11:51:48,586 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 43 selfloop transitions, 22 changer transitions 0/150 dead transitions. [2023-11-26 11:51:48,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 150 transitions, 478 flow [2023-11-26 11:51:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2023-11-26 11:51:48,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8504672897196262 [2023-11-26 11:51:48,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 546 transitions. [2023-11-26 11:51:48,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 546 transitions. [2023-11-26 11:51:48,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:48,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 546 transitions. [2023-11-26 11:51:48,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:48,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:48,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:48,597 INFO L175 Difference]: Start difference. First operand has 117 places, 109 transitions, 266 flow. Second operand 6 states and 546 transitions. [2023-11-26 11:51:48,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 150 transitions, 478 flow [2023-11-26 11:51:48,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 150 transitions, 472 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:48,604 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 406 flow [2023-11-26 11:51:48,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2023-11-26 11:51:48,605 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 19 predicate places. [2023-11-26 11:51:48,606 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 406 flow [2023-11-26 11:51:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:48,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:48,607 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:48,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:48,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:48,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:48,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:48,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1673316054, now seen corresponding path program 1 times [2023-11-26 11:51:48,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:48,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627734715] [2023-11-26 11:51:48,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627734715] [2023-11-26 11:51:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627734715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446471200] [2023-11-26 11:51:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:49,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:49,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:49,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:51:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:51:49,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:49,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446471200] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:49,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:49,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-26 11:51:49,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908123596] [2023-11-26 11:51:49,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:49,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 11:51:49,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 11:51:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:51:49,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-26 11:51:49,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 406 flow. Second operand has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:49,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:49,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-26 11:51:49,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:49,782 INFO L124 PetriNetUnfolderBase]: 41/455 cut-off events. [2023-11-26 11:51:49,783 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-26 11:51:49,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 455 events. 41/455 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2254 event pairs, 16 based on Foata normal form. 4/432 useless extension candidates. Maximal degree in co-relation 637. Up to 55 conditions per place. [2023-11-26 11:51:49,788 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 21 changer transitions 0/149 dead transitions. [2023-11-26 11:51:49,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 149 transitions, 572 flow [2023-11-26 11:51:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 11:51:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 11:51:49,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1933 transitions. [2023-11-26 11:51:49,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8602581219403649 [2023-11-26 11:51:49,801 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1933 transitions. [2023-11-26 11:51:49,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1933 transitions. [2023-11-26 11:51:49,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:49,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1933 transitions. [2023-11-26 11:51:49,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 92.04761904761905) internal successors, (1933), 21 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:49,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:49,824 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:49,825 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 406 flow. Second operand 21 states and 1933 transitions. [2023-11-26 11:51:49,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 149 transitions, 572 flow [2023-11-26 11:51:49,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 149 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:49,838 INFO L231 Difference]: Finished difference. Result has 150 places, 144 transitions, 536 flow [2023-11-26 11:51:49,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=536, PETRI_PLACES=150, PETRI_TRANSITIONS=144} [2023-11-26 11:51:49,841 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 44 predicate places. [2023-11-26 11:51:49,841 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 144 transitions, 536 flow [2023-11-26 11:51:49,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:49,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:49,842 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:49,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:50,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:50,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:50,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1840766614, now seen corresponding path program 2 times [2023-11-26 11:51:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140886070] [2023-11-26 11:51:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:50,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:50,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140886070] [2023-11-26 11:51:50,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140886070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:50,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172788992] [2023-11-26 11:51:50,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:51:50,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:50,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:50,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:50,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:51:50,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:51:50,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:50,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 11:51:50,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:50,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-26 11:51:50,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-26 11:51:50,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:51:50,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-26 11:51:50,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:51:50,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-26 11:51:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:51:50,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:50,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172788992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:50,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:50,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-26 11:51:50,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663230905] [2023-11-26 11:51:50,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:50,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:50,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-26 11:51:51,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-26 11:51:51,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 144 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:51,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:51,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-26 11:51:51,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:51,446 INFO L124 PetriNetUnfolderBase]: 306/1293 cut-off events. [2023-11-26 11:51:51,446 INFO L125 PetriNetUnfolderBase]: For 283/293 co-relation queries the response was YES. [2023-11-26 11:51:51,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 1293 events. 306/1293 cut-off events. For 283/293 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9192 event pairs, 116 based on Foata normal form. 5/1184 useless extension candidates. Maximal degree in co-relation 2322. Up to 464 conditions per place. [2023-11-26 11:51:51,459 INFO L140 encePairwiseOnDemand]: 92/107 looper letters, 72 selfloop transitions, 36 changer transitions 2/201 dead transitions. [2023-11-26 11:51:51,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 201 transitions, 908 flow [2023-11-26 11:51:51,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-11-26 11:51:51,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8286604361370716 [2023-11-26 11:51:51,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-11-26 11:51:51,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-11-26 11:51:51,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:51,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-11-26 11:51:51,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:51,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:51,468 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:51,468 INFO L175 Difference]: Start difference. First operand has 150 places, 144 transitions, 536 flow. Second operand 6 states and 532 transitions. [2023-11-26 11:51:51,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 201 transitions, 908 flow [2023-11-26 11:51:51,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 201 transitions, 884 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-26 11:51:51,479 INFO L231 Difference]: Finished difference. Result has 153 places, 176 transitions, 764 flow [2023-11-26 11:51:51,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=153, PETRI_TRANSITIONS=176} [2023-11-26 11:51:51,482 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 47 predicate places. [2023-11-26 11:51:51,483 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 176 transitions, 764 flow [2023-11-26 11:51:51,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:51,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:51,484 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:51,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-26 11:51:51,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:51,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:51,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:51,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1792313509, now seen corresponding path program 1 times [2023-11-26 11:51:51,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:51,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463603590] [2023-11-26 11:51:51,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:51,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:52,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:52,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463603590] [2023-11-26 11:51:52,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463603590] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:52,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055763268] [2023-11-26 11:51:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:52,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:52,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:51:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:52,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:51:52,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:52,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:52,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055763268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:52,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:52,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-26 11:51:52,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288472578] [2023-11-26 11:51:52,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:52,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-26 11:51:52,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:52,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-26 11:51:52,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-26 11:51:52,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-26 11:51:52,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 176 transitions, 764 flow. Second operand has 23 states, 23 states have (on average 92.08695652173913) internal successors, (2118), 23 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:52,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:52,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-26 11:51:52,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:53,194 INFO L124 PetriNetUnfolderBase]: 120/893 cut-off events. [2023-11-26 11:51:53,194 INFO L125 PetriNetUnfolderBase]: For 413/413 co-relation queries the response was YES. [2023-11-26 11:51:53,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 893 events. 120/893 cut-off events. For 413/413 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6071 event pairs, 33 based on Foata normal form. 3/837 useless extension candidates. Maximal degree in co-relation 1576. Up to 134 conditions per place. [2023-11-26 11:51:53,203 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 21 selfloop transitions, 30 changer transitions 0/193 dead transitions. [2023-11-26 11:51:53,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 193 transitions, 988 flow [2023-11-26 11:51:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-26 11:51:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-26 11:51:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2754 transitions. [2023-11-26 11:51:53,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8579439252336448 [2023-11-26 11:51:53,214 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2754 transitions. [2023-11-26 11:51:53,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2754 transitions. [2023-11-26 11:51:53,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:53,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2754 transitions. [2023-11-26 11:51:53,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 91.8) internal successors, (2754), 30 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 107.0) internal successors, (3317), 31 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:53,237 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 107.0) internal successors, (3317), 31 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:53,237 INFO L175 Difference]: Start difference. First operand has 153 places, 176 transitions, 764 flow. Second operand 30 states and 2754 transitions. [2023-11-26 11:51:53,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 193 transitions, 988 flow [2023-11-26 11:51:53,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 193 transitions, 964 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:53,249 INFO L231 Difference]: Finished difference. Result has 185 places, 186 transitions, 892 flow [2023-11-26 11:51:53,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=892, PETRI_PLACES=185, PETRI_TRANSITIONS=186} [2023-11-26 11:51:53,252 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 79 predicate places. [2023-11-26 11:51:53,253 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 186 transitions, 892 flow [2023-11-26 11:51:53,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 92.08695652173913) internal successors, (2118), 23 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:53,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:53,258 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:53,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:53,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:51:53,465 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:53,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1745245208, now seen corresponding path program 2 times [2023-11-26 11:51:53,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184881781] [2023-11-26 11:51:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 11:51:54,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:54,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184881781] [2023-11-26 11:51:54,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184881781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:54,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:54,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644167097] [2023-11-26 11:51:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:54,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:54,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:54,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 107 [2023-11-26 11:51:54,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 186 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:54,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 107 [2023-11-26 11:51:54,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:54,767 INFO L124 PetriNetUnfolderBase]: 306/1440 cut-off events. [2023-11-26 11:51:54,768 INFO L125 PetriNetUnfolderBase]: For 898/938 co-relation queries the response was YES. [2023-11-26 11:51:54,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3307 conditions, 1440 events. 306/1440 cut-off events. For 898/938 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10778 event pairs, 72 based on Foata normal form. 10/1404 useless extension candidates. Maximal degree in co-relation 3088. Up to 456 conditions per place. [2023-11-26 11:51:54,785 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 80 selfloop transitions, 49 changer transitions 0/252 dead transitions. [2023-11-26 11:51:54,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 252 transitions, 1449 flow [2023-11-26 11:51:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:54,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2023-11-26 11:51:54,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8582554517133957 [2023-11-26 11:51:54,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2023-11-26 11:51:54,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2023-11-26 11:51:54,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:54,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2023-11-26 11:51:54,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,794 INFO L175 Difference]: Start difference. First operand has 185 places, 186 transitions, 892 flow. Second operand 6 states and 551 transitions. [2023-11-26 11:51:54,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 252 transitions, 1449 flow [2023-11-26 11:51:54,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 252 transitions, 1403 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-26 11:51:54,811 INFO L231 Difference]: Finished difference. Result has 176 places, 227 transitions, 1262 flow [2023-11-26 11:51:54,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1262, PETRI_PLACES=176, PETRI_TRANSITIONS=227} [2023-11-26 11:51:54,813 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 70 predicate places. [2023-11-26 11:51:54,813 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 227 transitions, 1262 flow [2023-11-26 11:51:54,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:54,814 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:54,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:51:54,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:54,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1000709021, now seen corresponding path program 1 times [2023-11-26 11:51:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965625387] [2023-11-26 11:51:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 11:51:55,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965625387] [2023-11-26 11:51:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965625387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:55,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:55,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:55,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887623467] [2023-11-26 11:51:55,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:55,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:55,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:55,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:55,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 107 [2023-11-26 11:51:55,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 227 transitions, 1262 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:55,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:55,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 107 [2023-11-26 11:51:55,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:56,650 INFO L124 PetriNetUnfolderBase]: 579/2260 cut-off events. [2023-11-26 11:51:56,650 INFO L125 PetriNetUnfolderBase]: For 2469/2529 co-relation queries the response was YES. [2023-11-26 11:51:56,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5935 conditions, 2260 events. 579/2260 cut-off events. For 2469/2529 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18387 event pairs, 140 based on Foata normal form. 12/2188 useless extension candidates. Maximal degree in co-relation 5733. Up to 824 conditions per place. [2023-11-26 11:51:56,677 INFO L140 encePairwiseOnDemand]: 92/107 looper letters, 119 selfloop transitions, 78 changer transitions 11/321 dead transitions. [2023-11-26 11:51:56,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 321 transitions, 2202 flow [2023-11-26 11:51:56,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2023-11-26 11:51:56,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8364485981308412 [2023-11-26 11:51:56,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2023-11-26 11:51:56,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2023-11-26 11:51:56,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:56,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2023-11-26 11:51:56,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:56,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:56,686 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:56,686 INFO L175 Difference]: Start difference. First operand has 176 places, 227 transitions, 1262 flow. Second operand 6 states and 537 transitions. [2023-11-26 11:51:56,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 321 transitions, 2202 flow [2023-11-26 11:51:56,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 321 transitions, 2200 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:56,717 INFO L231 Difference]: Finished difference. Result has 185 places, 275 transitions, 1866 flow [2023-11-26 11:51:56,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1866, PETRI_PLACES=185, PETRI_TRANSITIONS=275} [2023-11-26 11:51:56,721 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 79 predicate places. [2023-11-26 11:51:56,721 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 275 transitions, 1866 flow [2023-11-26 11:51:56,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:56,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:56,722 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:56,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:51:56,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 11:51:56,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 26525968, now seen corresponding path program 1 times [2023-11-26 11:51:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342330214] [2023-11-26 11:51:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:56,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:56,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:56,904 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:56,905 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-26 11:51:56,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-26 11:51:56,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-26 11:51:56,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-26 11:51:56,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-26 11:51:56,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-26 11:51:56,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-26 11:51:56,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:51:56,908 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2023-11-26 11:51:56,916 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:51:56,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:56,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:51:56,984 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-11-26 11:51:56,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre39 could not be translated [2023-11-26 11:51:56,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-26 11:51:56,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-26 11:51:56,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:56,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:56,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:56,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:56,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:56,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:56,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:56,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:56,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:57,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:57 BasicIcfg [2023-11-26 11:51:57,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:57,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:57,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:57,008 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:57,008 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:45" (3/4) ... [2023-11-26 11:51:57,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:57,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:57,012 INFO L158 Benchmark]: Toolchain (without parser) took 13375.47ms. Allocated memory was 134.2MB in the beginning and 234.9MB in the end (delta: 100.7MB). Free memory was 86.4MB in the beginning and 97.6MB in the end (delta: -11.2MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,014 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:57,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 876.52ms. Allocated memory is still 134.2MB. Free memory was 86.2MB in the beginning and 92.6MB in the end (delta: -6.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.86ms. Allocated memory is still 134.2MB. Free memory was 92.6MB in the beginning and 90.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,015 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 134.2MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,015 INFO L158 Benchmark]: RCFGBuilder took 660.48ms. Allocated memory is still 134.2MB. Free memory was 87.9MB in the beginning and 69.5MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,016 INFO L158 Benchmark]: TraceAbstraction took 11712.12ms. Allocated memory was 134.2MB in the beginning and 234.9MB in the end (delta: 100.7MB). Free memory was 69.0MB in the beginning and 98.6MB in the end (delta: -29.6MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2023-11-26 11:51:57,016 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 234.9MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:57,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 876.52ms. Allocated memory is still 134.2MB. Free memory was 86.2MB in the beginning and 92.6MB in the end (delta: -6.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.86ms. Allocated memory is still 134.2MB. Free memory was 92.6MB in the beginning and 90.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 134.2MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.48ms. Allocated memory is still 134.2MB. Free memory was 87.9MB in the beginning and 69.5MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11712.12ms. Allocated memory was 134.2MB in the beginning and 234.9MB in the end (delta: 100.7MB). Free memory was 69.0MB in the beginning and 98.6MB in the end (delta: -29.6MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 234.9MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected [2023-11-26 11:51:57,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:51:57,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-11-26 11:51:57,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre39 could not be translated [2023-11-26 11:51:57,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-26 11:51:57,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-26 11:51:57,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:57,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:57,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:57,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:57,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:57,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:57,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:57,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:57,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:57,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:51:57,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-11-26 11:51:57,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre39 could not be translated [2023-11-26 11:51:57,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-26 11:51:57,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-26 11:51:57,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:57,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:57,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-26 11:51:57,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:57,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:57,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-26 11:51:57,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post43 could not be translated [2023-11-26 11:51:57,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-26 11:51:57,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; VAL [a={1:0}] [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=0] [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=1] [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=2] [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=3] [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=4] [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=5] [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=6] [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=7] [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=8] [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=9] [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) VAL [a={1:0}, i=10] [L939] 0 int i = __VERIFIER_nondet_int(); VAL [a={1:0}, i=1] [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; VAL [a={1:0}, i=1, t1={2:0}] [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, t1={2:0}] [L927] 1 int i = __VERIFIER_nondet_int(); VAL [a={1:0}, arg={0:0}, arg={0:0}, i=0] [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; VAL [a={1:0}, arg={0:0}, arg={0:0}, i=0, p={1:0}] [L931] 1 i++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, i=1, t1={2:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] [L932] EXPR 1 a[i].datum VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: a[i].datum++ [932] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 147 locations, 7 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: 11.4s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 543 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1353 IncrementalHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 25 mSDtfsCounter, 1353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 459 SyntacticMatches, 11 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1866occurred in iteration=8, InterpolantAutomatonStates: 87, 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, 4.3s InterpolantComputationTime, 969 NumberOfCodeBlocks, 919 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1022 ConstructedInterpolants, 0 QuantifiedInterpolants, 1936 SizeOfPredicates, 22 NumberOfNonLiveVariables, 662 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 600/1123 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-26 11:51:57,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e95fd11-1c7b-4992-a660-6832a470d71b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE