./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:51,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:51,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:34:51,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:51,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:51,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:51,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:51,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:51,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:51,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:51,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:51,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:51,645 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:51,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:51,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:51,647 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:51,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:51,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:51,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:51,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:51,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:51,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:51,652 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:34:51,653 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:51,654 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:51,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:51,655 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:51,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:51,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:51,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:51,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:51,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:51,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:51,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:34:51,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:51,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:51,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:51,660 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:34:51,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:51,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:51,662 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:51,663 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_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2023-11-19 07:34:51,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:51,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:51,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:51,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:51,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:51,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-divine/condvar.i [2023-11-19 07:34:55,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:55,520 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:55,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/sv-benchmarks/c/pthread-divine/condvar.i [2023-11-19 07:34:55,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/data/b24e68369/c37a97917df342c2af6e9784b56708ad/FLAGd66fe230b [2023-11-19 07:34:55,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/data/b24e68369/c37a97917df342c2af6e9784b56708ad [2023-11-19 07:34:55,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:55,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:55,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:55,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:55,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:55,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:55,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657bd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55, skipping insertion in model container [2023-11-19 07:34:55,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:55,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:55,787 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:34:56,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:56,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:56,116 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:34:56,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:56,205 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:34:56,214 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:56,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56 WrapperNode [2023-11-19 07:34:56,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:56,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:56,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:56,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:56,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,298 INFO L138 Inliner]: procedures = 169, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2023-11-19 07:34:56,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:56,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:56,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:56,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:56,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:56,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:56,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:56,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:56,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (1/1) ... [2023-11-19 07:34:56,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:56,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:56,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:56,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:34:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:34:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:34:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:34:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:34:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:56,469 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:34:56,620 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:56,622 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:56,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:56,848 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:56,849 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:34:56,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:56 BoogieIcfgContainer [2023-11-19 07:34:56,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:56,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:56,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:56,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:56,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:55" (1/3) ... [2023-11-19 07:34:56,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309e228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:56, skipping insertion in model container [2023-11-19 07:34:56,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:56" (2/3) ... [2023-11-19 07:34:56,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309e228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:56, skipping insertion in model container [2023-11-19 07:34:56,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:56" (3/3) ... [2023-11-19 07:34:56,866 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2023-11-19 07:34:56,874 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:34:56,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:56,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-19 07:34:56,885 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:34:56,951 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:34:57,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 209 flow [2023-11-19 07:34:57,067 INFO L124 PetriNetUnfolderBase]: 6/100 cut-off events. [2023-11-19 07:34:57,067 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:34:57,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 6/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-19 07:34:57,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 101 transitions, 209 flow [2023-11-19 07:34:57,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 93 transitions, 189 flow [2023-11-19 07:34:57,084 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:34:57,097 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions, 189 flow [2023-11-19 07:34:57,101 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 93 transitions, 189 flow [2023-11-19 07:34:57,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions, 189 flow [2023-11-19 07:34:57,133 INFO L124 PetriNetUnfolderBase]: 6/93 cut-off events. [2023-11-19 07:34:57,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:57,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 6/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-19 07:34:57,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 1508 [2023-11-19 07:35:00,960 INFO L134 LiptonReduction]: Checked pairs total: 3734 [2023-11-19 07:35:00,961 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-11-19 07:35:00,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:00,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51f73023, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:00,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:35:00,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:35:00,998 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-11-19 07:35:00,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:00,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:00,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:35:01,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:01,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash 346827218, now seen corresponding path program 1 times [2023-11-19 07:35:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284776555] [2023-11-19 07:35:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284776555] [2023-11-19 07:35:01,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284776555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:35:01,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316002825] [2023-11-19 07:35:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:35:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:35:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:35:01,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 181 [2023-11-19 07:35:01,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:01,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 181 [2023-11-19 07:35:01,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:01,383 INFO L124 PetriNetUnfolderBase]: 16/58 cut-off events. [2023-11-19 07:35:01,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:01,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 58 events. 16/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 153 event pairs, 8 based on Foata normal form. 10/56 useless extension candidates. Maximal degree in co-relation 86. Up to 33 conditions per place. [2023-11-19 07:35:01,388 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 10 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-19 07:35:01,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 65 flow [2023-11-19 07:35:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:35:01,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:35:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2023-11-19 07:35:01,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607734806629834 [2023-11-19 07:35:01,410 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 203 transitions. [2023-11-19 07:35:01,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 203 transitions. [2023-11-19 07:35:01,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:01,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 203 transitions. [2023-11-19 07:35:01,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,433 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,436 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 51 flow. Second operand 2 states and 203 transitions. [2023-11-19 07:35:01,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 65 flow [2023-11-19 07:35:01,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:01,441 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2023-11-19 07:35:01,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-11-19 07:35:01,449 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-11-19 07:35:01,449 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2023-11-19 07:35:01,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:01,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:35:01,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:35:01,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:01,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 346829411, now seen corresponding path program 1 times [2023-11-19 07:35:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286404065] [2023-11-19 07:35:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286404065] [2023-11-19 07:35:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286404065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473374302] [2023-11-19 07:35:01,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:01,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:01,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:01,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 181 [2023-11-19 07:35:01,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:01,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 181 [2023-11-19 07:35:01,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:01,658 INFO L124 PetriNetUnfolderBase]: 41/119 cut-off events. [2023-11-19 07:35:01,658 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:01,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 119 events. 41/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 449 event pairs, 6 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 207. Up to 52 conditions per place. [2023-11-19 07:35:01,660 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 21 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-11-19 07:35:01,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 31 transitions, 112 flow [2023-11-19 07:35:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-19 07:35:01,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5488029465930019 [2023-11-19 07:35:01,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-19 07:35:01,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-19 07:35:01,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:01,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-19 07:35:01,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,670 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 298 transitions. [2023-11-19 07:35:01,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 31 transitions, 112 flow [2023-11-19 07:35:01,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:35:01,671 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 70 flow [2023-11-19 07:35:01,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-11-19 07:35:01,672 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-11-19 07:35:01,673 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 70 flow [2023-11-19 07:35:01,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:01,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:01,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:01,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2133281929, now seen corresponding path program 1 times [2023-11-19 07:35:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482874257] [2023-11-19 07:35:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482874257] [2023-11-19 07:35:01,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482874257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:01,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633899650] [2023-11-19 07:35:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:01,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:01,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 181 [2023-11-19 07:35:01,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:01,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 181 [2023-11-19 07:35:01,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:01,800 INFO L124 PetriNetUnfolderBase]: 35/107 cut-off events. [2023-11-19 07:35:01,801 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:35:01,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 107 events. 35/107 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 447 event pairs, 19 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 208. Up to 65 conditions per place. [2023-11-19 07:35:01,803 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 15 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-11-19 07:35:01,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 116 flow [2023-11-19 07:35:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-19 07:35:01,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156537753222836 [2023-11-19 07:35:01,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-19 07:35:01,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-19 07:35:01,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:01,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-19 07:35:01,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,814 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 70 flow. Second operand 3 states and 280 transitions. [2023-11-19 07:35:01,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 116 flow [2023-11-19 07:35:01,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:01,817 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 83 flow [2023-11-19 07:35:01,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-11-19 07:35:01,818 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-11-19 07:35:01,818 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 83 flow [2023-11-19 07:35:01,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:01,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:01,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:01,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:01,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2133264050, now seen corresponding path program 1 times [2023-11-19 07:35:01,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299808602] [2023-11-19 07:35:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299808602] [2023-11-19 07:35:01,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299808602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:01,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803957429] [2023-11-19 07:35:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:01,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:01,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 181 [2023-11-19 07:35:01,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:01,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 181 [2023-11-19 07:35:01,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:01,945 INFO L124 PetriNetUnfolderBase]: 35/118 cut-off events. [2023-11-19 07:35:01,946 INFO L125 PetriNetUnfolderBase]: For 14/16 co-relation queries the response was YES. [2023-11-19 07:35:01,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 118 events. 35/118 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 495 event pairs, 14 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 246. Up to 52 conditions per place. [2023-11-19 07:35:01,948 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-11-19 07:35:01,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 134 flow [2023-11-19 07:35:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-11-19 07:35:01,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5211786372007366 [2023-11-19 07:35:01,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-11-19 07:35:01,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-11-19 07:35:01,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:01,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-11-19 07:35:01,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,957 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 83 flow. Second operand 3 states and 283 transitions. [2023-11-19 07:35:01,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 134 flow [2023-11-19 07:35:01,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:01,959 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 103 flow [2023-11-19 07:35:01,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-11-19 07:35:01,961 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-11-19 07:35:01,961 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 103 flow [2023-11-19 07:35:01,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:01,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:01,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:35:01,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:01,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1296066965, now seen corresponding path program 1 times [2023-11-19 07:35:01,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170966493] [2023-11-19 07:35:01,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:02,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:02,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170966493] [2023-11-19 07:35:02,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170966493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:02,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:02,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:02,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826014953] [2023-11-19 07:35:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:02,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:02,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:02,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 181 [2023-11-19 07:35:02,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:02,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 181 [2023-11-19 07:35:02,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:02,074 INFO L124 PetriNetUnfolderBase]: 75/193 cut-off events. [2023-11-19 07:35:02,074 INFO L125 PetriNetUnfolderBase]: For 71/81 co-relation queries the response was YES. [2023-11-19 07:35:02,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 193 events. 75/193 cut-off events. For 71/81 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 869 event pairs, 24 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 481. Up to 94 conditions per place. [2023-11-19 07:35:02,078 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 22 selfloop transitions, 4 changer transitions 1/37 dead transitions. [2023-11-19 07:35:02,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 191 flow [2023-11-19 07:35:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-19 07:35:02,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451197053406999 [2023-11-19 07:35:02,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-19 07:35:02,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-19 07:35:02,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:02,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-19 07:35:02,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,086 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 103 flow. Second operand 3 states and 296 transitions. [2023-11-19 07:35:02,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 191 flow [2023-11-19 07:35:02,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:02,089 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 128 flow [2023-11-19 07:35:02,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-11-19 07:35:02,091 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-11-19 07:35:02,091 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 128 flow [2023-11-19 07:35:02,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:02,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:02,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:35:02,093 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:02,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash 34828510, now seen corresponding path program 1 times [2023-11-19 07:35:02,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:02,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703748726] [2023-11-19 07:35:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:02,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703748726] [2023-11-19 07:35:02,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703748726] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395548287] [2023-11-19 07:35:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:02,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:35:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:35:02,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:02,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395548287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:02,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:35:02,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:35:02,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694815378] [2023-11-19 07:35:02,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:02,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:02,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:02,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 181 [2023-11-19 07:35:02,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:02,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 181 [2023-11-19 07:35:02,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:02,468 INFO L124 PetriNetUnfolderBase]: 72/194 cut-off events. [2023-11-19 07:35:02,468 INFO L125 PetriNetUnfolderBase]: For 119/128 co-relation queries the response was YES. [2023-11-19 07:35:02,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 194 events. 72/194 cut-off events. For 119/128 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 849 event pairs, 30 based on Foata normal form. 3/185 useless extension candidates. Maximal degree in co-relation 501. Up to 124 conditions per place. [2023-11-19 07:35:02,470 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 17 selfloop transitions, 5 changer transitions 2/36 dead transitions. [2023-11-19 07:35:02,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 192 flow [2023-11-19 07:35:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-19 07:35:02,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156537753222836 [2023-11-19 07:35:02,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-19 07:35:02,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-19 07:35:02,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:02,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-19 07:35:02,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,490 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 128 flow. Second operand 3 states and 280 transitions. [2023-11-19 07:35:02,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 192 flow [2023-11-19 07:35:02,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:02,494 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 149 flow [2023-11-19 07:35:02,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2023-11-19 07:35:02,495 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2023-11-19 07:35:02,495 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 149 flow [2023-11-19 07:35:02,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:02,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:02,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:35:02,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:35:02,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:02,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1870453656, now seen corresponding path program 1 times [2023-11-19 07:35:02,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:02,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875160915] [2023-11-19 07:35:02,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875160915] [2023-11-19 07:35:02,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875160915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:02,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:02,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142662733] [2023-11-19 07:35:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:02,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:02,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 181 [2023-11-19 07:35:02,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:02,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 181 [2023-11-19 07:35:02,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:02,868 INFO L124 PetriNetUnfolderBase]: 29/96 cut-off events. [2023-11-19 07:35:02,869 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2023-11-19 07:35:02,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 96 events. 29/96 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 324 event pairs, 10 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 258. Up to 32 conditions per place. [2023-11-19 07:35:02,870 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 12 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-19 07:35:02,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 145 flow [2023-11-19 07:35:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-11-19 07:35:02,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340699815837937 [2023-11-19 07:35:02,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-11-19 07:35:02,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-11-19 07:35:02,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:02,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-11-19 07:35:02,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,878 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 149 flow. Second operand 3 states and 290 transitions. [2023-11-19 07:35:02,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 145 flow [2023-11-19 07:35:02,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 126 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-19 07:35:02,881 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 102 flow [2023-11-19 07:35:02,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-11-19 07:35:02,882 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-11-19 07:35:02,882 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 102 flow [2023-11-19 07:35:02,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:02,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:02,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:35:02,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:02,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 85663555, now seen corresponding path program 1 times [2023-11-19 07:35:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:02,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393210925] [2023-11-19 07:35:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:02,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:02,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393210925] [2023-11-19 07:35:02,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393210925] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:02,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601559251] [2023-11-19 07:35:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:02,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:35:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:03,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:35:03,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:03,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:03,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601559251] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:03,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:03,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:35:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841949472] [2023-11-19 07:35:03,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:03,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:35:03,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:03,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:35:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:35:03,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-19 07:35:03,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 102 flow. Second operand has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:03,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-19 07:35:03,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:03,198 INFO L124 PetriNetUnfolderBase]: 49/136 cut-off events. [2023-11-19 07:35:03,199 INFO L125 PetriNetUnfolderBase]: For 36/41 co-relation queries the response was YES. [2023-11-19 07:35:03,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 136 events. 49/136 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 373 event pairs, 5 based on Foata normal form. 9/135 useless extension candidates. Maximal degree in co-relation 303. Up to 38 conditions per place. [2023-11-19 07:35:03,201 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 19 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-11-19 07:35:03,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 184 flow [2023-11-19 07:35:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:35:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-11-19 07:35:03,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119705340699816 [2023-11-19 07:35:03,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-11-19 07:35:03,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-11-19 07:35:03,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:03,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-11-19 07:35:03,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,211 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,211 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 102 flow. Second operand 6 states and 556 transitions. [2023-11-19 07:35:03,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 184 flow [2023-11-19 07:35:03,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:03,214 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 138 flow [2023-11-19 07:35:03,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-11-19 07:35:03,215 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2023-11-19 07:35:03,216 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 138 flow [2023-11-19 07:35:03,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:03,217 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:03,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:03,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:03,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash 534415047, now seen corresponding path program 2 times [2023-11-19 07:35:03,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:03,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406217104] [2023-11-19 07:35:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:03,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406217104] [2023-11-19 07:35:03,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406217104] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362831952] [2023-11-19 07:35:03,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:35:03,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:03,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:35:03,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:35:03,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:35:03,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:35:03,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:03,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:03,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362831952] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:03,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:03,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-19 07:35:03,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062991821] [2023-11-19 07:35:03,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:03,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:35:03,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:35:03,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:35:03,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-19 07:35:03,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 138 flow. Second operand has 13 states, 13 states have (on average 90.07692307692308) internal successors, (1171), 13 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:03,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-19 07:35:03,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:03,976 INFO L124 PetriNetUnfolderBase]: 61/200 cut-off events. [2023-11-19 07:35:03,977 INFO L125 PetriNetUnfolderBase]: For 249/251 co-relation queries the response was YES. [2023-11-19 07:35:03,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 200 events. 61/200 cut-off events. For 249/251 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 573 event pairs, 6 based on Foata normal form. 18/211 useless extension candidates. Maximal degree in co-relation 551. Up to 52 conditions per place. [2023-11-19 07:35:03,979 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 37 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2023-11-19 07:35:03,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 372 flow [2023-11-19 07:35:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:35:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:35:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1111 transitions. [2023-11-19 07:35:03,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115101289134438 [2023-11-19 07:35:03,989 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1111 transitions. [2023-11-19 07:35:03,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1111 transitions. [2023-11-19 07:35:04,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:04,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1111 transitions. [2023-11-19 07:35:04,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 92.58333333333333) internal successors, (1111), 12 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,024 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,024 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 138 flow. Second operand 12 states and 1111 transitions. [2023-11-19 07:35:04,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 372 flow [2023-11-19 07:35:04,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 352 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:04,029 INFO L231 Difference]: Finished difference. Result has 54 places, 35 transitions, 226 flow [2023-11-19 07:35:04,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=226, PETRI_PLACES=54, PETRI_TRANSITIONS=35} [2023-11-19 07:35:04,030 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 30 predicate places. [2023-11-19 07:35:04,030 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 226 flow [2023-11-19 07:35:04,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.07692307692308) internal successors, (1171), 13 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:04,031 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:04,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:04,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:04,244 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:04,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1624492231, now seen corresponding path program 3 times [2023-11-19 07:35:04,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730900879] [2023-11-19 07:35:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:04,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730900879] [2023-11-19 07:35:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730900879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773298525] [2023-11-19 07:35:04,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:35:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:04,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:04,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:35:04,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-19 07:35:04,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:35:04,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:35:04,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773298525] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:04,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:04,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-19 07:35:04,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421098376] [2023-11-19 07:35:04,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:04,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-19 07:35:04,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:04,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-19 07:35:04,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:35:05,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-19 07:35:05,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 226 flow. Second operand has 25 states, 25 states have (on average 90.04) internal successors, (2251), 25 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:05,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:05,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-19 07:35:05,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:05,330 INFO L124 PetriNetUnfolderBase]: 109/356 cut-off events. [2023-11-19 07:35:05,330 INFO L125 PetriNetUnfolderBase]: For 1822/1824 co-relation queries the response was YES. [2023-11-19 07:35:05,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 356 events. 109/356 cut-off events. For 1822/1824 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1006 event pairs, 6 based on Foata normal form. 36/385 useless extension candidates. Maximal degree in co-relation 1181. Up to 100 conditions per place. [2023-11-19 07:35:05,335 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 73 selfloop transitions, 24 changer transitions 0/111 dead transitions. [2023-11-19 07:35:05,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 111 transitions, 800 flow [2023-11-19 07:35:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:35:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-19 07:35:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2221 transitions. [2023-11-19 07:35:05,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112799263351749 [2023-11-19 07:35:05,343 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2221 transitions. [2023-11-19 07:35:05,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2221 transitions. [2023-11-19 07:35:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:05,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2221 transitions. [2023-11-19 07:35:05,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 92.54166666666667) internal successors, (2221), 24 states have internal predecessors, (2221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:05,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 181.0) internal successors, (4525), 25 states have internal predecessors, (4525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:05,362 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 181.0) internal successors, (4525), 25 states have internal predecessors, (4525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:05,362 INFO L175 Difference]: Start difference. First operand has 54 places, 35 transitions, 226 flow. Second operand 24 states and 2221 transitions. [2023-11-19 07:35:05,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 111 transitions, 800 flow [2023-11-19 07:35:05,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 111 transitions, 794 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:35:05,370 INFO L231 Difference]: Finished difference. Result has 87 places, 48 transitions, 452 flow [2023-11-19 07:35:05,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=452, PETRI_PLACES=87, PETRI_TRANSITIONS=48} [2023-11-19 07:35:05,371 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-11-19 07:35:05,371 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 48 transitions, 452 flow [2023-11-19 07:35:05,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 90.04) internal successors, (2251), 25 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:05,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:05,373 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:05,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:05,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:35:05,588 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:05,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash -541012793, now seen corresponding path program 4 times [2023-11-19 07:35:05,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:05,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210309762] [2023-11-19 07:35:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:05,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:06,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210309762] [2023-11-19 07:35:06,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210309762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333378053] [2023-11-19 07:35:06,389 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:35:06,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:06,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:06,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:35:06,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:35:06,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:35:06,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:35:06,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:06,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:07,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333378053] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:07,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:07,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 46 [2023-11-19 07:35:07,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53092816] [2023-11-19 07:35:07,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:07,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-19 07:35:07,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-19 07:35:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2023-11-19 07:35:07,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-19 07:35:07,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 48 transitions, 452 flow. Second operand has 46 states, 46 states have (on average 90.06521739130434) internal successors, (4143), 46 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:07,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:07,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-19 07:35:07,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:08,460 INFO L124 PetriNetUnfolderBase]: 283/721 cut-off events. [2023-11-19 07:35:08,460 INFO L125 PetriNetUnfolderBase]: For 13901/13906 co-relation queries the response was YES. [2023-11-19 07:35:08,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 721 events. 283/721 cut-off events. For 13901/13906 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1836 event pairs, 5 based on Foata normal form. 63/774 useless extension candidates. Maximal degree in co-relation 2783. Up to 272 conditions per place. [2023-11-19 07:35:08,473 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 136 selfloop transitions, 45 changer transitions 0/195 dead transitions. [2023-11-19 07:35:08,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 195 transitions, 1758 flow [2023-11-19 07:35:08,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-19 07:35:08,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-19 07:35:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4162 transitions. [2023-11-19 07:35:08,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510988336402701 [2023-11-19 07:35:08,539 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4162 transitions. [2023-11-19 07:35:08,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4162 transitions. [2023-11-19 07:35:08,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:08,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4162 transitions. [2023-11-19 07:35:08,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 92.4888888888889) internal successors, (4162), 45 states have internal predecessors, (4162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 181.0) internal successors, (8326), 46 states have internal predecessors, (8326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,576 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 181.0) internal successors, (8326), 46 states have internal predecessors, (8326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,576 INFO L175 Difference]: Start difference. First operand has 87 places, 48 transitions, 452 flow. Second operand 45 states and 4162 transitions. [2023-11-19 07:35:08,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 195 transitions, 1758 flow [2023-11-19 07:35:08,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 195 transitions, 1740 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-19 07:35:08,615 INFO L231 Difference]: Finished difference. Result has 144 places, 70 transitions, 922 flow [2023-11-19 07:35:08,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=922, PETRI_PLACES=144, PETRI_TRANSITIONS=70} [2023-11-19 07:35:08,616 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 120 predicate places. [2023-11-19 07:35:08,616 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 70 transitions, 922 flow [2023-11-19 07:35:08,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 90.06521739130434) internal successors, (4143), 46 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:08,618 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:08,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:35:08,831 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:35:08,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1003839401, now seen corresponding path program 5 times [2023-11-19 07:35:08,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:08,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821196153] [2023-11-19 07:35:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:08,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:09,022 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:35:09,024 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-19 07:35:09,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-19 07:35:09,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-19 07:35:09,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-19 07:35:09,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-11-19 07:35:09,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-19 07:35:09,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-19 07:35:09,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-19 07:35:09,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:35:09,027 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:09,034 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:35:09,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:35:09,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-19 07:35:09,150 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:35:09,151 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 07:35:09,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:09 BasicIcfg [2023-11-19 07:35:09,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:35:09,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:09,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:09,167 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:09,167 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:56" (3/4) ... [2023-11-19 07:35:09,169 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:35:09,170 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:09,171 INFO L158 Benchmark]: Toolchain (without parser) took 13611.29ms. Allocated memory was 123.7MB in the beginning and 234.9MB in the end (delta: 111.1MB). Free memory was 80.4MB in the beginning and 138.7MB in the end (delta: -58.3MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,171 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:09,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.43ms. Allocated memory is still 123.7MB. Free memory was 80.0MB in the beginning and 60.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 123.7MB. Free memory was 60.0MB in the beginning and 57.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,173 INFO L158 Benchmark]: Boogie Preprocessor took 67.79ms. Allocated memory is still 123.7MB. Free memory was 57.7MB in the beginning and 93.7MB in the end (delta: -36.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,173 INFO L158 Benchmark]: RCFGBuilder took 488.15ms. Allocated memory was 123.7MB in the beginning and 195.0MB in the end (delta: 71.3MB). Free memory was 93.6MB in the beginning and 153.5MB in the end (delta: -59.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,173 INFO L158 Benchmark]: TraceAbstraction took 12308.13ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 152.5MB in the beginning and 138.7MB in the end (delta: 13.8MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,174 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 234.9MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:09,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.43ms. Allocated memory is still 123.7MB. Free memory was 80.0MB in the beginning and 60.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 123.7MB. Free memory was 60.0MB in the beginning and 57.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.79ms. Allocated memory is still 123.7MB. Free memory was 57.7MB in the beginning and 93.7MB in the end (delta: -36.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 488.15ms. Allocated memory was 123.7MB in the beginning and 195.0MB in the end (delta: 71.3MB). Free memory was 93.6MB in the beginning and 153.5MB in the end (delta: -59.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12308.13ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 152.5MB in the beginning and 138.7MB in the end (delta: 13.8MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 234.9MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 91 PlacesBefore, 24 PlacesAfterwards, 93 TransitionsBefore, 24 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1831, independent: 1646, independent conditional: 0, independent unconditional: 1646, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1831, independent: 795, independent conditional: 0, independent unconditional: 795, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 704]: Data race detected [2023-11-19 07:35:09,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-19 07:35:09,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:35:09,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 07:35:09,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-19 07:35:09,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:35:09,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L700] 0 _Bool x_set = 0; [L711] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] 0 int i = 0; VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=0] [L713] COND FALSE 0 !(i <= 42) [L715] 0 x_set = 1 VAL [cond={4:0}, lock={3:0}, t={7:0}, x=42, x_set=1] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] Now there is a data race on ~x_set~0 between C: x_set = 1 [715] and C: !x_set [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.0s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 700 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 27 mSDtfsCounter, 1062 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 351 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=11, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 940 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2651 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:35:09,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f038962-9d9b-4e47-996e-82761c7715e7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE