./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX --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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:37:42,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:37:42,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 16:37:42,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:37:42,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:37:42,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:37:42,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:37:42,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:37:42,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:37:42,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:37:42,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:37:42,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:37:42,276 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:37:42,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:37:42,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:37:42,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:37:42,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:37:42,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:37:42,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:37:42,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:37:42,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:37:42,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:37:42,283 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 16:37:42,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:37:42,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:37:42,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:37:42,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:37:42,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:37:42,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:37:42,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:37:42,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:37:42,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:42,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:37:42,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:37:42,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:37:42,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:37:42,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:37:42,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:37:42,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:37:42,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:37:42,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:37:42,295 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_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-08 16:37:42,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:37:42,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:37:42,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:37:42,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:37:42,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:37:42,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i Unable to find full path for "g++" [2024-11-08 16:37:44,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:37:44,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:37:44,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-08 16:37:45,013 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/data/d080b4111/a85b99389b30424fabe0fc04758577be/FLAGb8ec23cfc [2024-11-08 16:37:45,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/data/d080b4111/a85b99389b30424fabe0fc04758577be [2024-11-08 16:37:45,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:37:45,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:37:45,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:45,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:37:45,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:37:45,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:45" (1/1) ... [2024-11-08 16:37:45,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb18467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:45, skipping insertion in model container [2024-11-08 16:37:45,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:45" (1/1) ... [2024-11-08 16:37:45,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:37:46,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:46,075 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:37:46,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:46,343 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:37:46,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46 WrapperNode [2024-11-08 16:37:46,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:46,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:46,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:37:46,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:37:46,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,435 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 289 [2024-11-08 16:37:46,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:46,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:37:46,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:37:46,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:37:46,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:37:46,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:37:46,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:37:46,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:37:46,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (1/1) ... [2024-11-08 16:37:46,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:46,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:46,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:37:46,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:37:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 16:37:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 16:37:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:37:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 16:37:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 16:37:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:37:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:37:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:37:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 16:37:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:37:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:37:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 16:37:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:37:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:37:46,594 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:37:46,776 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:37:46,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:37:47,443 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:37:47,443 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:37:47,480 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:37:47,480 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:37:47,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:47 BoogieIcfgContainer [2024-11-08 16:37:47,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:37:47,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:37:47,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:37:47,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:37:47,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:37:45" (1/3) ... [2024-11-08 16:37:47,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1883189e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:47, skipping insertion in model container [2024-11-08 16:37:47,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:46" (2/3) ... [2024-11-08 16:37:47,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1883189e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:47, skipping insertion in model container [2024-11-08 16:37:47,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:47" (3/3) ... [2024-11-08 16:37:47,493 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-08 16:37:47,506 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:37:47,507 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-08 16:37:47,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:37:47,690 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:37:47,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 327 transitions, 658 flow [2024-11-08 16:37:47,952 INFO L124 PetriNetUnfolderBase]: 6/326 cut-off events. [2024-11-08 16:37:47,953 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:37:47,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 326 events. 6/326 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 423 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 203. Up to 2 conditions per place. [2024-11-08 16:37:47,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 327 transitions, 658 flow [2024-11-08 16:37:47,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 326 transitions, 655 flow [2024-11-08 16:37:47,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:37:48,001 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bf33056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:37:48,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 16:37:48,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:37:48,040 INFO L124 PetriNetUnfolderBase]: 3/128 cut-off events. [2024-11-08 16:37:48,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:37:48,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:48,042 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:48,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:37:48,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:48,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2083476620, now seen corresponding path program 1 times [2024-11-08 16:37:48,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:48,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778603339] [2024-11-08 16:37:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:49,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778603339] [2024-11-08 16:37:49,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778603339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:49,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:49,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:37:49,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068250435] [2024-11-08 16:37:49,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:49,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:37:49,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:37:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:37:50,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-08 16:37:50,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 326 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:50,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:50,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-08 16:37:50,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:37:51,782 INFO L124 PetriNetUnfolderBase]: 1322/5030 cut-off events. [2024-11-08 16:37:51,783 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:37:51,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7574 conditions, 5030 events. 1322/5030 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 37101 event pairs, 912 based on Foata normal form. 0/4562 useless extension candidates. Maximal degree in co-relation 7432. Up to 2359 conditions per place. [2024-11-08 16:37:51,814 INFO L140 encePairwiseOnDemand]: 290/327 looper letters, 84 selfloop transitions, 107 changer transitions 0/434 dead transitions. [2024-11-08 16:37:51,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 434 transitions, 1253 flow [2024-11-08 16:37:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:37:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:37:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2024-11-08 16:37:51,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445463812436289 [2024-11-08 16:37:51,841 INFO L175 Difference]: Start difference. First operand has 324 places, 326 transitions, 655 flow. Second operand 6 states and 1657 transitions. [2024-11-08 16:37:51,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 434 transitions, 1253 flow [2024-11-08 16:37:51,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 434 transitions, 1252 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:37:51,864 INFO L231 Difference]: Finished difference. Result has 332 places, 426 transitions, 1342 flow [2024-11-08 16:37:51,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1342, PETRI_PLACES=332, PETRI_TRANSITIONS=426} [2024-11-08 16:37:51,872 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-08 16:37:51,875 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 426 transitions, 1342 flow [2024-11-08 16:37:51,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:51,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:51,876 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:51,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:37:51,877 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:37:51,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1124600659, now seen corresponding path program 1 times [2024-11-08 16:37:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145459314] [2024-11-08 16:37:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:51,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:52,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145459314] [2024-11-08 16:37:52,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145459314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:52,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:52,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:37:52,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358727136] [2024-11-08 16:37:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:52,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:37:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:52,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:37:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:37:53,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-08 16:37:53,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 426 transitions, 1342 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:53,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:53,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-08 16:37:53,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:37:55,073 INFO L124 PetriNetUnfolderBase]: 1594/5926 cut-off events. [2024-11-08 16:37:55,074 INFO L125 PetriNetUnfolderBase]: For 1217/1220 co-relation queries the response was YES. [2024-11-08 16:37:55,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10718 conditions, 5926 events. 1594/5926 cut-off events. For 1217/1220 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 45114 event pairs, 936 based on Foata normal form. 0/5419 useless extension candidates. Maximal degree in co-relation 10563. Up to 2637 conditions per place. [2024-11-08 16:37:55,112 INFO L140 encePairwiseOnDemand]: 290/327 looper letters, 180 selfloop transitions, 107 changer transitions 0/534 dead transitions. [2024-11-08 16:37:55,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 534 transitions, 2324 flow [2024-11-08 16:37:55,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:37:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:37:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2024-11-08 16:37:55,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445463812436289 [2024-11-08 16:37:55,117 INFO L175 Difference]: Start difference. First operand has 332 places, 426 transitions, 1342 flow. Second operand 6 states and 1657 transitions. [2024-11-08 16:37:55,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 534 transitions, 2324 flow [2024-11-08 16:37:55,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 534 transitions, 2324 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:37:55,135 INFO L231 Difference]: Finished difference. Result has 341 places, 526 transitions, 2222 flow [2024-11-08 16:37:55,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=1340, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2222, PETRI_PLACES=341, PETRI_TRANSITIONS=526} [2024-11-08 16:37:55,137 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 17 predicate places. [2024-11-08 16:37:55,137 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 526 transitions, 2222 flow [2024-11-08 16:37:55,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:55,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:55,139 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:55,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:37:55,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:37:55,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:55,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2116153993, now seen corresponding path program 1 times [2024-11-08 16:37:55,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:55,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183046334] [2024-11-08 16:37:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:55,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:55,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183046334] [2024-11-08 16:37:55,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183046334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:55,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:55,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:55,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976018851] [2024-11-08 16:37:55,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:55,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:55,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:55,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:55,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:55,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 327 [2024-11-08 16:37:55,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 526 transitions, 2222 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:55,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:55,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 327 [2024-11-08 16:37:55,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:37:56,509 INFO L124 PetriNetUnfolderBase]: 1106/4480 cut-off events. [2024-11-08 16:37:56,509 INFO L125 PetriNetUnfolderBase]: For 1100/1106 co-relation queries the response was YES. [2024-11-08 16:37:56,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8894 conditions, 4480 events. 1106/4480 cut-off events. For 1100/1106 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28784 event pairs, 108 based on Foata normal form. 8/4221 useless extension candidates. Maximal degree in co-relation 8669. Up to 1137 conditions per place. [2024-11-08 16:37:56,549 INFO L140 encePairwiseOnDemand]: 319/327 looper letters, 18 selfloop transitions, 4 changer transitions 0/532 dead transitions. [2024-11-08 16:37:56,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 532 transitions, 2278 flow [2024-11-08 16:37:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:37:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2024-11-08 16:37:56,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9775739041794088 [2024-11-08 16:37:56,552 INFO L175 Difference]: Start difference. First operand has 341 places, 526 transitions, 2222 flow. Second operand 3 states and 959 transitions. [2024-11-08 16:37:56,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 532 transitions, 2278 flow [2024-11-08 16:37:56,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 532 transitions, 2086 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-08 16:37:56,576 INFO L231 Difference]: Finished difference. Result has 344 places, 528 transitions, 2058 flow [2024-11-08 16:37:56,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2030, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2058, PETRI_PLACES=344, PETRI_TRANSITIONS=528} [2024-11-08 16:37:56,578 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 20 predicate places. [2024-11-08 16:37:56,578 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 528 transitions, 2058 flow [2024-11-08 16:37:56,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:56,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:56,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:56,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:37:56,579 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:37:56,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash 684528471, now seen corresponding path program 1 times [2024-11-08 16:37:56,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:56,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840981021] [2024-11-08 16:37:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:57,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:57,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840981021] [2024-11-08 16:37:57,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840981021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:57,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:37:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069964049] [2024-11-08 16:37:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:57,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:37:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:37:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:37:58,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 327 [2024-11-08 16:37:58,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 528 transitions, 2058 flow. Second operand has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:58,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:58,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 327 [2024-11-08 16:37:58,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:01,256 INFO L124 PetriNetUnfolderBase]: 3041/10832 cut-off events. [2024-11-08 16:38:01,256 INFO L125 PetriNetUnfolderBase]: For 5996/6095 co-relation queries the response was YES. [2024-11-08 16:38:01,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23916 conditions, 10832 events. 3041/10832 cut-off events. For 5996/6095 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 85649 event pairs, 1872 based on Foata normal form. 0/10246 useless extension candidates. Maximal degree in co-relation 23656. Up to 5591 conditions per place. [2024-11-08 16:38:01,343 INFO L140 encePairwiseOnDemand]: 321/327 looper letters, 285 selfloop transitions, 5 changer transitions 0/527 dead transitions. [2024-11-08 16:38:01,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 527 transitions, 2636 flow [2024-11-08 16:38:01,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:38:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:38:01,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1507 transitions. [2024-11-08 16:38:01,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7680937818552498 [2024-11-08 16:38:01,351 INFO L175 Difference]: Start difference. First operand has 344 places, 528 transitions, 2058 flow. Second operand 6 states and 1507 transitions. [2024-11-08 16:38:01,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 527 transitions, 2636 flow [2024-11-08 16:38:01,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 527 transitions, 2632 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:38:01,376 INFO L231 Difference]: Finished difference. Result has 347 places, 527 transitions, 2062 flow [2024-11-08 16:38:01,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2052, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2062, PETRI_PLACES=347, PETRI_TRANSITIONS=527} [2024-11-08 16:38:01,377 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 23 predicate places. [2024-11-08 16:38:01,377 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 527 transitions, 2062 flow [2024-11-08 16:38:01,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:01,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:01,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:01,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:38:01,379 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:01,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:01,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2079850944, now seen corresponding path program 1 times [2024-11-08 16:38:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:01,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22968061] [2024-11-08 16:38:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:01,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:01,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22968061] [2024-11-08 16:38:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22968061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:01,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302992854] [2024-11-08 16:38:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:01,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:01,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:01,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:01,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:38:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:01,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:38:01,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:01,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:38:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:02,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302992854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:38:02,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:38:02,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 16:38:02,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089397495] [2024-11-08 16:38:02,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:38:02,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:38:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:02,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:38:02,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:38:02,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 16:38:02,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 527 transitions, 2062 flow. Second operand has 10 states, 10 states have (on average 307.3) internal successors, (3073), 10 states have internal predecessors, (3073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:02,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:02,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 16:38:02,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:03,615 INFO L124 PetriNetUnfolderBase]: 1126/4646 cut-off events. [2024-11-08 16:38:03,615 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-11-08 16:38:03,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8964 conditions, 4646 events. 1126/4646 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 29626 event pairs, 108 based on Foata normal form. 7/4367 useless extension candidates. Maximal degree in co-relation 8662. Up to 922 conditions per place. [2024-11-08 16:38:03,652 INFO L140 encePairwiseOnDemand]: 316/327 looper letters, 27 selfloop transitions, 13 changer transitions 0/543 dead transitions. [2024-11-08 16:38:03,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 543 transitions, 2172 flow [2024-11-08 16:38:03,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:38:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 16:38:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2790 transitions. [2024-11-08 16:38:03,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9480122324159022 [2024-11-08 16:38:03,659 INFO L175 Difference]: Start difference. First operand has 347 places, 527 transitions, 2062 flow. Second operand 9 states and 2790 transitions. [2024-11-08 16:38:03,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 543 transitions, 2172 flow [2024-11-08 16:38:03,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 543 transitions, 2162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:38:03,679 INFO L231 Difference]: Finished difference. Result has 353 places, 532 transitions, 2112 flow [2024-11-08 16:38:03,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2044, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2112, PETRI_PLACES=353, PETRI_TRANSITIONS=532} [2024-11-08 16:38:03,681 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 29 predicate places. [2024-11-08 16:38:03,681 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 532 transitions, 2112 flow [2024-11-08 16:38:03,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 307.3) internal successors, (3073), 10 states have internal predecessors, (3073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:03,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:03,684 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:03,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:38:03,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:03,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:03,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 93538158, now seen corresponding path program 2 times [2024-11-08 16:38:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:03,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928265162] [2024-11-08 16:38:03,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:04,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:04,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928265162] [2024-11-08 16:38:04,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928265162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:04,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688846456] [2024-11-08 16:38:04,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:38:04,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:04,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:04,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:04,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:38:04,581 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:38:04,581 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:38:04,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 16:38:04,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:04,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:38:04,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 16:38:04,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:38:04,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-08 16:38:04,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:38:04,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 16:38:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-08 16:38:04,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:38:04,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688846456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:04,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:38:04,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 16:38:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237616319] [2024-11-08 16:38:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:04,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:38:04,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:04,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:38:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:38:05,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 327 [2024-11-08 16:38:05,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 532 transitions, 2112 flow. Second operand has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:05,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:05,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 327 [2024-11-08 16:38:05,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:08,817 INFO L124 PetriNetUnfolderBase]: 3613/12420 cut-off events. [2024-11-08 16:38:08,818 INFO L125 PetriNetUnfolderBase]: For 5269/5351 co-relation queries the response was YES. [2024-11-08 16:38:08,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26934 conditions, 12420 events. 3613/12420 cut-off events. For 5269/5351 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 98810 event pairs, 1616 based on Foata normal form. 0/11622 useless extension candidates. Maximal degree in co-relation 26597. Up to 6064 conditions per place. [2024-11-08 16:38:08,903 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 245 selfloop transitions, 170 changer transitions 0/701 dead transitions. [2024-11-08 16:38:08,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 701 transitions, 3420 flow [2024-11-08 16:38:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:38:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:38:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1720 transitions. [2024-11-08 16:38:08,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766564729867482 [2024-11-08 16:38:08,908 INFO L175 Difference]: Start difference. First operand has 353 places, 532 transitions, 2112 flow. Second operand 6 states and 1720 transitions. [2024-11-08 16:38:08,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 701 transitions, 3420 flow [2024-11-08 16:38:08,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 701 transitions, 3410 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-08 16:38:08,937 INFO L231 Difference]: Finished difference. Result has 362 places, 693 transitions, 3352 flow [2024-11-08 16:38:08,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3352, PETRI_PLACES=362, PETRI_TRANSITIONS=693} [2024-11-08 16:38:08,939 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 38 predicate places. [2024-11-08 16:38:08,939 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 693 transitions, 3352 flow [2024-11-08 16:38:08,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:08,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:08,941 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:08,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:38:09,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:09,147 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:09,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1050999539, now seen corresponding path program 1 times [2024-11-08 16:38:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:09,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768700021] [2024-11-08 16:38:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:09,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:09,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768700021] [2024-11-08 16:38:09,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768700021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889199558] [2024-11-08 16:38:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:09,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:09,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:09,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:09,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:38:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:38:10,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:10,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:38:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889199558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:38:10,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:38:10,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 16:38:10,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105952399] [2024-11-08 16:38:10,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:38:10,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:38:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:10,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:38:10,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:38:11,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 16:38:11,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 693 transitions, 3352 flow. Second operand has 18 states, 18 states have (on average 307.3888888888889) internal successors, (5533), 18 states have internal predecessors, (5533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:11,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:11,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 16:38:11,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:13,643 INFO L124 PetriNetUnfolderBase]: 1818/7106 cut-off events. [2024-11-08 16:38:13,643 INFO L125 PetriNetUnfolderBase]: For 3078/3167 co-relation queries the response was YES. [2024-11-08 16:38:13,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16305 conditions, 7106 events. 1818/7106 cut-off events. For 3078/3167 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 49561 event pairs, 170 based on Foata normal form. 4/6764 useless extension candidates. Maximal degree in co-relation 15690. Up to 1393 conditions per place. [2024-11-08 16:38:13,682 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 35 selfloop transitions, 25 changer transitions 0/724 dead transitions. [2024-11-08 16:38:13,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 724 transitions, 3586 flow [2024-11-08 16:38:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 16:38:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 16:38:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6469 transitions. [2024-11-08 16:38:13,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9420416484636668 [2024-11-08 16:38:13,695 INFO L175 Difference]: Start difference. First operand has 362 places, 693 transitions, 3352 flow. Second operand 21 states and 6469 transitions. [2024-11-08 16:38:13,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 724 transitions, 3586 flow [2024-11-08 16:38:13,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 724 transitions, 3550 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-08 16:38:13,752 INFO L231 Difference]: Finished difference. Result has 387 places, 706 transitions, 3460 flow [2024-11-08 16:38:13,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3316, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3460, PETRI_PLACES=387, PETRI_TRANSITIONS=706} [2024-11-08 16:38:13,754 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 63 predicate places. [2024-11-08 16:38:13,754 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 706 transitions, 3460 flow [2024-11-08 16:38:13,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 307.3888888888889) internal successors, (5533), 18 states have internal predecessors, (5533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:13,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:13,758 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:13,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:38:13,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:13,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:13,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1425442737, now seen corresponding path program 2 times [2024-11-08 16:38:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:13,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413442340] [2024-11-08 16:38:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:15,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:15,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413442340] [2024-11-08 16:38:15,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413442340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:15,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819819103] [2024-11-08 16:38:15,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:38:15,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:15,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:15,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:15,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:38:15,844 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:38:15,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:38:15,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 16:38:15,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:15,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 16:38:15,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-08 16:38:16,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:38:16,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-08 16:38:16,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:38:16,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-08 16:38:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2024-11-08 16:38:16,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:38:16,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819819103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:16,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:38:16,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 16:38:16,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777460524] [2024-11-08 16:38:16,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:16,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:38:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:16,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:38:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:38:16,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 327 [2024-11-08 16:38:16,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 706 transitions, 3460 flow. Second operand has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:16,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:16,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 327 [2024-11-08 16:38:16,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:22,149 INFO L124 PetriNetUnfolderBase]: 4304/14801 cut-off events. [2024-11-08 16:38:22,149 INFO L125 PetriNetUnfolderBase]: For 10384/10533 co-relation queries the response was YES. [2024-11-08 16:38:22,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37132 conditions, 14801 events. 4304/14801 cut-off events. For 10384/10533 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 120297 event pairs, 1677 based on Foata normal form. 0/13959 useless extension candidates. Maximal degree in co-relation 36431. Up to 6897 conditions per place. [2024-11-08 16:38:22,250 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 395 selfloop transitions, 170 changer transitions 0/875 dead transitions. [2024-11-08 16:38:22,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 875 transitions, 5368 flow [2024-11-08 16:38:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:38:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:38:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1720 transitions. [2024-11-08 16:38:22,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766564729867482 [2024-11-08 16:38:22,255 INFO L175 Difference]: Start difference. First operand has 387 places, 706 transitions, 3460 flow. Second operand 6 states and 1720 transitions. [2024-11-08 16:38:22,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 875 transitions, 5368 flow [2024-11-08 16:38:22,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 875 transitions, 5342 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 16:38:22,327 INFO L231 Difference]: Finished difference. Result has 391 places, 867 transitions, 4984 flow [2024-11-08 16:38:22,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4984, PETRI_PLACES=391, PETRI_TRANSITIONS=867} [2024-11-08 16:38:22,331 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 67 predicate places. [2024-11-08 16:38:22,333 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 867 transitions, 4984 flow [2024-11-08 16:38:22,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:22,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:22,334 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:22,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:38:22,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 16:38:22,566 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:22,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:22,567 INFO L85 PathProgramCache]: Analyzing trace with hash -580820684, now seen corresponding path program 1 times [2024-11-08 16:38:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:22,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653334165] [2024-11-08 16:38:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:23,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:23,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653334165] [2024-11-08 16:38:23,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653334165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:23,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145487102] [2024-11-08 16:38:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:23,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:23,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:23,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:23,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:38:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:24,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:38:24,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:24,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:38:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145487102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:38:25,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:38:25,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 16:38:25,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508257534] [2024-11-08 16:38:25,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:38:25,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 16:38:25,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 16:38:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 16:38:26,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 16:38:26,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 867 transitions, 4984 flow. Second operand has 23 states, 23 states have (on average 307.69565217391306) internal successors, (7077), 23 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:26,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:26,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 16:38:26,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:30,407 INFO L124 PetriNetUnfolderBase]: 2509/9455 cut-off events. [2024-11-08 16:38:30,407 INFO L125 PetriNetUnfolderBase]: For 7353/7519 co-relation queries the response was YES. [2024-11-08 16:38:30,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24678 conditions, 9455 events. 2509/9455 cut-off events. For 7353/7519 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 69256 event pairs, 231 based on Foata normal form. 3/9055 useless extension candidates. Maximal degree in co-relation 23794. Up to 2110 conditions per place. [2024-11-08 16:38:30,489 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 41 selfloop transitions, 34 changer transitions 0/900 dead transitions. [2024-11-08 16:38:30,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 900 transitions, 5288 flow [2024-11-08 16:38:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 16:38:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 16:38:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9228 transitions. [2024-11-08 16:38:30,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9406727828746178 [2024-11-08 16:38:30,515 INFO L175 Difference]: Start difference. First operand has 391 places, 867 transitions, 4984 flow. Second operand 30 states and 9228 transitions. [2024-11-08 16:38:30,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 900 transitions, 5288 flow [2024-11-08 16:38:30,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 900 transitions, 4952 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-08 16:38:30,639 INFO L231 Difference]: Finished difference. Result has 424 places, 877 transitions, 4814 flow [2024-11-08 16:38:30,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4648, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=840, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4814, PETRI_PLACES=424, PETRI_TRANSITIONS=877} [2024-11-08 16:38:30,640 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 100 predicate places. [2024-11-08 16:38:30,641 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 877 transitions, 4814 flow [2024-11-08 16:38:30,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 307.69565217391306) internal successors, (7077), 23 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:30,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:30,644 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:30,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:38:30,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a382a57f-8a52-4d33-8f08-4e102cc61ec0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:30,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:30,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash 953382623, now seen corresponding path program 2 times [2024-11-08 16:38:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:30,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697903752] [2024-11-08 16:38:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:30,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-11-08 16:38:34,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:34,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697903752] [2024-11-08 16:38:34,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697903752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:34,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:38:34,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947992703] [2024-11-08 16:38:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:34,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:38:34,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:38:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:38:36,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 327 [2024-11-08 16:38:36,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 877 transitions, 4814 flow. Second operand has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:36,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:36,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 327 [2024-11-08 16:38:36,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:48,160 INFO L124 PetriNetUnfolderBase]: 5753/18218 cut-off events. [2024-11-08 16:38:48,160 INFO L125 PetriNetUnfolderBase]: For 20209/20399 co-relation queries the response was YES. [2024-11-08 16:38:48,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54088 conditions, 18218 events. 5753/18218 cut-off events. For 20209/20399 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 147634 event pairs, 1608 based on Foata normal form. 74/17568 useless extension candidates. Maximal degree in co-relation 53052. Up to 4524 conditions per place. [2024-11-08 16:38:48,404 INFO L140 encePairwiseOnDemand]: 286/327 looper letters, 864 selfloop transitions, 128 changer transitions 0/1301 dead transitions. [2024-11-08 16:38:48,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 1301 transitions, 9718 flow [2024-11-08 16:38:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 16:38:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-08 16:38:48,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5753 transitions. [2024-11-08 16:38:48,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7649248770110357 [2024-11-08 16:38:48,420 INFO L175 Difference]: Start difference. First operand has 424 places, 877 transitions, 4814 flow. Second operand 23 states and 5753 transitions. [2024-11-08 16:38:48,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 1301 transitions, 9718 flow [2024-11-08 16:38:48,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1301 transitions, 9670 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-08 16:38:48,636 INFO L231 Difference]: Finished difference. Result has 445 places, 1001 transitions, 6197 flow [2024-11-08 16:38:48,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4766, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6197, PETRI_PLACES=445, PETRI_TRANSITIONS=1001} [2024-11-08 16:38:48,638 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 121 predicate places. [2024-11-08 16:38:48,638 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 1001 transitions, 6197 flow [2024-11-08 16:38:48,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:48,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:48,640 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:48,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:38:48,641 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:38:48,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1288178611, now seen corresponding path program 3 times [2024-11-08 16:38:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:48,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647220735] [2024-11-08 16:38:48,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:48,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-11-08 16:38:52,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:52,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647220735] [2024-11-08 16:38:52,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647220735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:52,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:52,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:38:52,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734675108] [2024-11-08 16:38:52,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:52,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:38:52,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:38:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:38:53,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 327 [2024-11-08 16:38:53,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1001 transitions, 6197 flow. Second operand has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:53,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:53,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 327 [2024-11-08 16:38:53,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand