./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/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_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/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_cd49a2b7-0a46-48e2-b13e-599fa009db34/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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:51,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:51,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:58:51,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:51,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:51,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:51,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:51,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:51,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:51,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:51,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:51,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:51,332 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:51,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:51,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:51,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:51,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:51,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:51,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:51,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:51,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:51,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:51,338 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:58:51,339 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:51,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:51,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:51,340 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:51,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:51,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:51,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:51,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:51,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:51,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:51,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:51,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:51,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:51,345 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:51,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:51,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:51,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:51,347 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:51,356 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_cd49a2b7-0a46-48e2-b13e-599fa009db34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2023-11-19 07:58:51,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:51,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:51,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:51,720 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:51,720 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:51,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2023-11-19 07:58:54,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:55,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:55,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2023-11-19 07:58:55,226 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/data/db74d897e/4a8ad0f7b18245af9c568da1b460fff4/FLAG9cb68cec5 [2023-11-19 07:58:55,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/data/db74d897e/4a8ad0f7b18245af9c568da1b460fff4 [2023-11-19 07:58:55,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:55,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:55,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:55,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:55,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:55,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7e891e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55, skipping insertion in model container [2023-11-19 07:58:55,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:55,556 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:58:55,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:55,828 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:55,856 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:58:55,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:55,942 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:55,942 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:55,943 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:55,951 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:55,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55 WrapperNode [2023-11-19 07:58:55,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:55,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:55,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:55,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:55,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,045 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2023-11-19 07:58:56,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:56,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:56,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:56,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:56,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:56,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:56,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:56,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:56,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:56,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:56,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:56,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:58:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-19 07:58:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-19 07:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-19 07:58:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-19 07:58:56,232 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 07:58:56,459 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:56,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:56,978 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:57,120 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:57,121 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:57,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57 BoogieIcfgContainer [2023-11-19 07:58:57,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:57,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:57,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:57,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:57,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:55" (1/3) ... [2023-11-19 07:58:57,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecec2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:57, skipping insertion in model container [2023-11-19 07:58:57,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (2/3) ... [2023-11-19 07:58:57,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecec2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:57, skipping insertion in model container [2023-11-19 07:58:57,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57" (3/3) ... [2023-11-19 07:58:57,143 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-11-19 07:58:57,159 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:58:57,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:57,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-19 07:58:57,173 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:58:57,280 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:58:57,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 176 transitions, 380 flow [2023-11-19 07:58:57,449 INFO L124 PetriNetUnfolderBase]: 4/172 cut-off events. [2023-11-19 07:58:57,449 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:58:57,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 172 events. 4/172 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 293 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-11-19 07:58:57,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 176 transitions, 380 flow [2023-11-19 07:58:57,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 158 transitions, 337 flow [2023-11-19 07:58:57,480 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:58:57,499 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 158 transitions, 337 flow [2023-11-19 07:58:57,504 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 158 transitions, 337 flow [2023-11-19 07:58:57,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 158 transitions, 337 flow [2023-11-19 07:58:57,599 INFO L124 PetriNetUnfolderBase]: 4/158 cut-off events. [2023-11-19 07:58:57,600 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:58:57,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 158 events. 4/158 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 293 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-11-19 07:58:57,611 INFO L119 LiptonReduction]: Number of co-enabled transitions 10512 [2023-11-19 07:59:03,276 INFO L134 LiptonReduction]: Checked pairs total: 29622 [2023-11-19 07:59:03,277 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-11-19 07:59:03,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:03,300 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;@3d7505a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:03,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-19 07:59:03,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:59:03,305 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:59:03,305 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:59:03,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:03,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:59:03,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:03,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:03,312 INFO L85 PathProgramCache]: Analyzing trace with hash 666083, now seen corresponding path program 1 times [2023-11-19 07:59:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:03,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036056837] [2023-11-19 07:59:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:03,502 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 07:59:03,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036056837] [2023-11-19 07:59:03,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036056837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:03,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:03,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:03,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360112934] [2023-11-19 07:59:03,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:03,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:03,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:03,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 299 [2023-11-19 07:59:03,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 159 flow. Second operand has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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 07:59:03,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:03,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 299 [2023-11-19 07:59:03,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:05,095 INFO L124 PetriNetUnfolderBase]: 7549/10501 cut-off events. [2023-11-19 07:59:05,096 INFO L125 PetriNetUnfolderBase]: For 880/880 co-relation queries the response was YES. [2023-11-19 07:59:05,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21568 conditions, 10501 events. 7549/10501 cut-off events. For 880/880 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 53292 event pairs, 7549 based on Foata normal form. 0/10469 useless extension candidates. Maximal degree in co-relation 17401. Up to 10429 conditions per place. [2023-11-19 07:59:05,186 INFO L140 encePairwiseOnDemand]: 269/299 looper letters, 32 selfloop transitions, 0 changer transitions 2/39 dead transitions. [2023-11-19 07:59:05,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 167 flow [2023-11-19 07:59:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:59:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 308 transitions. [2023-11-19 07:59:05,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5150501672240803 [2023-11-19 07:59:05,211 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 308 transitions. [2023-11-19 07:59:05,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 308 transitions. [2023-11-19 07:59:05,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:05,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 308 transitions. [2023-11-19 07:59:05,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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 07:59:05,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 07:59:05,229 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 07:59:05,231 INFO L175 Difference]: Start difference. First operand has 82 places, 69 transitions, 159 flow. Second operand 2 states and 308 transitions. [2023-11-19 07:59:05,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 167 flow [2023-11-19 07:59:05,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-19 07:59:05,250 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 81 flow [2023-11-19 07:59:05,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-11-19 07:59:05,257 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -36 predicate places. [2023-11-19 07:59:05,257 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 81 flow [2023-11-19 07:59:05,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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 07:59:05,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:05,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:59:05,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:05,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:05,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:05,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1630993479, now seen corresponding path program 1 times [2023-11-19 07:59:05,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:05,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486894317] [2023-11-19 07:59:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:05,387 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 07:59:05,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:05,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486894317] [2023-11-19 07:59:05,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486894317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:05,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:05,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:05,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385374047] [2023-11-19 07:59:05,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:05,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:05,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:05,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 299 [2023-11-19 07:59:05,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 07:59:05,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:05,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 299 [2023-11-19 07:59:05,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:08,321 INFO L124 PetriNetUnfolderBase]: 18977/25798 cut-off events. [2023-11-19 07:59:08,321 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2023-11-19 07:59:08,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52301 conditions, 25798 events. 18977/25798 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 133789 event pairs, 13469 based on Foata normal form. 0/25152 useless extension candidates. Maximal degree in co-relation 52298. Up to 20555 conditions per place. [2023-11-19 07:59:08,478 INFO L140 encePairwiseOnDemand]: 290/299 looper letters, 54 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2023-11-19 07:59:08,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 63 transitions, 261 flow [2023-11-19 07:59:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-11-19 07:59:08,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45819397993311034 [2023-11-19 07:59:08,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-11-19 07:59:08,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-11-19 07:59:08,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:08,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-11-19 07:59:08,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:59:08,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:08,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:08,490 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 81 flow. Second operand 3 states and 411 transitions. [2023-11-19 07:59:08,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 63 transitions, 261 flow [2023-11-19 07:59:08,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:59:08,493 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 143 flow [2023-11-19 07:59:08,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2023-11-19 07:59:08,494 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -34 predicate places. [2023-11-19 07:59:08,495 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 143 flow [2023-11-19 07:59:08,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 07:59:08,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:08,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:08,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:59:08,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:08,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash -981846466, now seen corresponding path program 1 times [2023-11-19 07:59:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701797881] [2023-11-19 07:59:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:08,620 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 07:59:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701797881] [2023-11-19 07:59:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701797881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:08,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:08,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888645116] [2023-11-19 07:59:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:08,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:08,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:08,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-19 07:59:08,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 07:59:08,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:08,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-19 07:59:08,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:09,652 INFO L124 PetriNetUnfolderBase]: 5731/9640 cut-off events. [2023-11-19 07:59:09,653 INFO L125 PetriNetUnfolderBase]: For 2674/2674 co-relation queries the response was YES. [2023-11-19 07:59:09,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22412 conditions, 9640 events. 5731/9640 cut-off events. For 2674/2674 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 65301 event pairs, 1505 based on Foata normal form. 1264/10826 useless extension candidates. Maximal degree in co-relation 22407. Up to 5920 conditions per place. [2023-11-19 07:59:09,724 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 53 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2023-11-19 07:59:09,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 309 flow [2023-11-19 07:59:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-11-19 07:59:09,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4682274247491639 [2023-11-19 07:59:09,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-11-19 07:59:09,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-11-19 07:59:09,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:09,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-11-19 07:59:09,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 07:59:09,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:09,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:09,740 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 143 flow. Second operand 3 states and 420 transitions. [2023-11-19 07:59:09,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 309 flow [2023-11-19 07:59:09,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:09,771 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 142 flow [2023-11-19 07:59:09,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-11-19 07:59:09,773 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2023-11-19 07:59:09,774 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 142 flow [2023-11-19 07:59:09,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 07:59:09,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:09,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:09,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:59:09,779 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:09,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -685142194, now seen corresponding path program 2 times [2023-11-19 07:59:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:09,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710729010] [2023-11-19 07:59:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:09,869 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 07:59:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710729010] [2023-11-19 07:59:09,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710729010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:09,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:09,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000816242] [2023-11-19 07:59:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:09,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:09,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-19 07:59:09,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 07:59:09,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:09,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-19 07:59:09,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:10,590 INFO L124 PetriNetUnfolderBase]: 2205/4007 cut-off events. [2023-11-19 07:59:10,590 INFO L125 PetriNetUnfolderBase]: For 2807/2821 co-relation queries the response was YES. [2023-11-19 07:59:10,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9806 conditions, 4007 events. 2205/4007 cut-off events. For 2807/2821 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 25239 event pairs, 694 based on Foata normal form. 477/4400 useless extension candidates. Maximal degree in co-relation 9800. Up to 1785 conditions per place. [2023-11-19 07:59:10,621 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 76 selfloop transitions, 9 changer transitions 2/93 dead transitions. [2023-11-19 07:59:10,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 469 flow [2023-11-19 07:59:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:59:10,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 567 transitions. [2023-11-19 07:59:10,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47408026755852845 [2023-11-19 07:59:10,626 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 567 transitions. [2023-11-19 07:59:10,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 567 transitions. [2023-11-19 07:59:10,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:10,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 567 transitions. [2023-11-19 07:59:10,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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 07:59:10,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 299.0) internal successors, (1495), 5 states have internal predecessors, (1495), 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 07:59:10,636 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 299.0) internal successors, (1495), 5 states have internal predecessors, (1495), 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 07:59:10,636 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 142 flow. Second operand 4 states and 567 transitions. [2023-11-19 07:59:10,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 469 flow [2023-11-19 07:59:10,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 93 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:10,645 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 206 flow [2023-11-19 07:59:10,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2023-11-19 07:59:10,647 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -29 predicate places. [2023-11-19 07:59:10,647 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 206 flow [2023-11-19 07:59:10,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 07:59:10,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:10,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:10,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:10,649 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:10,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 321056751, now seen corresponding path program 1 times [2023-11-19 07:59:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:10,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909936581] [2023-11-19 07:59:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:10,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:10,705 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 07:59:10,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:10,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909936581] [2023-11-19 07:59:10,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909936581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:10,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:10,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:10,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102568933] [2023-11-19 07:59:10,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:10,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:10,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:10,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:10,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 299 [2023-11-19 07:59:10,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 07:59:10,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:10,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 299 [2023-11-19 07:59:10,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:11,416 INFO L124 PetriNetUnfolderBase]: 2552/4500 cut-off events. [2023-11-19 07:59:11,417 INFO L125 PetriNetUnfolderBase]: For 3309/3319 co-relation queries the response was YES. [2023-11-19 07:59:11,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12073 conditions, 4500 events. 2552/4500 cut-off events. For 3309/3319 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 26747 event pairs, 1968 based on Foata normal form. 0/4409 useless extension candidates. Maximal degree in co-relation 12065. Up to 4166 conditions per place. [2023-11-19 07:59:11,445 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 56 selfloop transitions, 6 changer transitions 4/69 dead transitions. [2023-11-19 07:59:11,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 69 transitions, 394 flow [2023-11-19 07:59:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-11-19 07:59:11,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44816053511705684 [2023-11-19 07:59:11,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-11-19 07:59:11,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-11-19 07:59:11,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:11,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-11-19 07:59:11,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 07:59:11,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:11,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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 07:59:11,456 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 206 flow. Second operand 3 states and 402 transitions. [2023-11-19 07:59:11,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 69 transitions, 394 flow [2023-11-19 07:59:11,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:59:11,462 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 246 flow [2023-11-19 07:59:11,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2023-11-19 07:59:11,463 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -26 predicate places. [2023-11-19 07:59:11,464 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 246 flow [2023-11-19 07:59:11,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 07:59:11,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:11,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:11,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:59:11,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:11,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1110656383, now seen corresponding path program 1 times [2023-11-19 07:59:11,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773734272] [2023-11-19 07:59:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,646 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 07:59:11,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:11,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773734272] [2023-11-19 07:59:11,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773734272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:11,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:11,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:11,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073370290] [2023-11-19 07:59:11,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:11,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:11,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:11,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:11,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-19 07:59:11,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 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 07:59:11,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:11,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-19 07:59:11,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:12,464 INFO L124 PetriNetUnfolderBase]: 2298/4219 cut-off events. [2023-11-19 07:59:12,464 INFO L125 PetriNetUnfolderBase]: For 4655/4761 co-relation queries the response was YES. [2023-11-19 07:59:12,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12333 conditions, 4219 events. 2298/4219 cut-off events. For 4655/4761 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 27487 event pairs, 561 based on Foata normal form. 154/4286 useless extension candidates. Maximal degree in co-relation 12323. Up to 1833 conditions per place. [2023-11-19 07:59:12,487 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 69 selfloop transitions, 9 changer transitions 26/110 dead transitions. [2023-11-19 07:59:12,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 110 transitions, 653 flow [2023-11-19 07:59:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:59:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:59:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 699 transitions. [2023-11-19 07:59:12,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46755852842809364 [2023-11-19 07:59:12,492 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 699 transitions. [2023-11-19 07:59:12,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 699 transitions. [2023-11-19 07:59:12,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:12,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 699 transitions. [2023-11-19 07:59:12,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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 07:59:12,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 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 07:59:12,503 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 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 07:59:12,503 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 246 flow. Second operand 5 states and 699 transitions. [2023-11-19 07:59:12,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 110 transitions, 653 flow [2023-11-19 07:59:12,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 110 transitions, 638 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:12,515 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 258 flow [2023-11-19 07:59:12,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2023-11-19 07:59:12,517 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -22 predicate places. [2023-11-19 07:59:12,517 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 258 flow [2023-11-19 07:59:12,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 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 07:59:12,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:12,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:12,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:59:12,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-19 07:59:12,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:12,519 INFO L85 PathProgramCache]: Analyzing trace with hash -772470241, now seen corresponding path program 2 times [2023-11-19 07:59:12,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:12,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957689212] [2023-11-19 07:59:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:12,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,635 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 07:59:12,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:12,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957689212] [2023-11-19 07:59:12,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957689212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:12,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:12,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:12,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111181039] [2023-11-19 07:59:12,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:12,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:12,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:12,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-19 07:59:12,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 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 07:59:12,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:12,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-19 07:59:12,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:12,940 INFO L124 PetriNetUnfolderBase]: 572/1344 cut-off events. [2023-11-19 07:59:12,940 INFO L125 PetriNetUnfolderBase]: For 2627/2649 co-relation queries the response was YES. [2023-11-19 07:59:12,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 1344 events. 572/1344 cut-off events. For 2627/2649 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8137 event pairs, 171 based on Foata normal form. 125/1458 useless extension candidates. Maximal degree in co-relation 4076. Up to 770 conditions per place. [2023-11-19 07:59:12,947 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-11-19 07:59:12,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 343 flow [2023-11-19 07:59:12,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:59:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:59:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 661 transitions. [2023-11-19 07:59:12,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44214046822742475 [2023-11-19 07:59:12,952 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 661 transitions. [2023-11-19 07:59:12,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 661 transitions. [2023-11-19 07:59:12,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:12,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 661 transitions. [2023-11-19 07:59:12,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 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 07:59:12,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 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 07:59:12,960 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 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 07:59:12,960 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 258 flow. Second operand 5 states and 661 transitions. [2023-11-19 07:59:12,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 343 flow [2023-11-19 07:59:12,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 297 flow, removed 12 selfloop flow, removed 7 redundant places. [2023-11-19 07:59:12,967 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-11-19 07:59:12,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-11-19 07:59:12,968 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -28 predicate places. [2023-11-19 07:59:12,969 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-11-19 07:59:12,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 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 07:59:12,972 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-11-19 07:59:12,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-11-19 07:59:12,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-11-19 07:59:12,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-11-19 07:59:12,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-11-19 07:59:12,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-11-19 07:59:12,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-11-19 07:59:12,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-11-19 07:59:12,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-11-19 07:59:12,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-11-19 07:59:12,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-11-19 07:59:12,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-11-19 07:59:12,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-11-19 07:59:12,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2023-11-19 07:59:12,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2023-11-19 07:59:12,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2023-11-19 07:59:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2023-11-19 07:59:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-11-19 07:59:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-11-19 07:59:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-11-19 07:59:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-11-19 07:59:12,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-11-19 07:59:12,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-11-19 07:59:12,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-11-19 07:59:12,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-11-19 07:59:12,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-11-19 07:59:12,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-11-19 07:59:12,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2023-11-19 07:59:12,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2023-11-19 07:59:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2023-11-19 07:59:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-11-19 07:59:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-11-19 07:59:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-11-19 07:59:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-11-19 07:59:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-11-19 07:59:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-11-19 07:59:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-11-19 07:59:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-11-19 07:59:12,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-11-19 07:59:12,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-11-19 07:59:12,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-11-19 07:59:12,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-11-19 07:59:12,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-11-19 07:59:12,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-11-19 07:59:12,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-11-19 07:59:12,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-11-19 07:59:12,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-11-19 07:59:12,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-11-19 07:59:12,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-11-19 07:59:12,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-11-19 07:59:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:59:12,985 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-11-19 07:59:12,992 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:59:12,992 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:59:12,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:12 BasicIcfg [2023-11-19 07:59:12,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:59:12,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:12,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:12,998 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:12,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57" (3/4) ... [2023-11-19 07:59:13,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:59:13,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2023-11-19 07:59:13,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2023-11-19 07:59:13,011 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 07:59:13,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:59:13,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:59:13,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:59:13,134 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:59:13,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:59:13,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:13,138 INFO L158 Benchmark]: Toolchain (without parser) took 17890.68ms. Allocated memory was 151.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 104.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 381.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,138 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 57.2MB in the beginning and 57.0MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:13,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.89ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 83.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.10ms. Allocated memory is still 151.0MB. Free memory was 83.8MB in the beginning and 81.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,140 INFO L158 Benchmark]: Boogie Preprocessor took 59.96ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 79.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,140 INFO L158 Benchmark]: RCFGBuilder took 1020.26ms. Allocated memory is still 151.0MB. Free memory was 79.1MB in the beginning and 97.8MB in the end (delta: -18.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,141 INFO L158 Benchmark]: TraceAbstraction took 15865.61ms. Allocated memory was 151.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 97.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 366.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,141 INFO L158 Benchmark]: Witness Printer took 139.32ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 57.2MB in the beginning and 57.0MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.89ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 83.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.10ms. Allocated memory is still 151.0MB. Free memory was 83.8MB in the beginning and 81.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.96ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 79.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1020.26ms. Allocated memory is still 151.0MB. Free memory was 79.1MB in the beginning and 97.8MB in the end (delta: -18.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15865.61ms. Allocated memory was 151.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 97.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 366.8MB. Max. memory is 16.1GB. * Witness Printer took 139.32ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 167 PlacesBefore, 82 PlacesAfterwards, 158 TransitionsBefore, 69 TransitionsAfterwards, 10512 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 99 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 4 ChoiceCompositions, 123 TotalNumberOfCompositions, 29622 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14955, independent: 14583, independent conditional: 0, independent unconditional: 14583, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5129, independent: 5051, independent conditional: 0, independent unconditional: 5051, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14955, independent: 9532, independent conditional: 0, independent unconditional: 9532, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 5129, unknown conditional: 0, unknown unconditional: 5129] , Statistics on independence cache: Total cache size (in pairs): 775, Positive cache size: 733, Positive conditional cache size: 0, Positive unconditional cache size: 733, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 219 locations, 50 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: 15.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 714 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 9 mSDtfsCounter, 714 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=6, InterpolantAutomatonStates: 25, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:59:13,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd49a2b7-0a46-48e2-b13e-599fa009db34/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE