./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ --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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:41:04,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:41:04,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:41:04,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:41:04,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:41:04,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:41:04,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:41:04,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:41:04,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:41:04,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:41:04,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:41:04,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:41:04,497 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:41:04,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:41:04,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:41:04,501 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:41:04,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:41:04,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:41:04,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:41:04,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:41:04,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:41:04,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:41:04,509 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:41:04,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:41:04,510 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:41:04,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:41:04,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:41:04,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:41:04,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:41:04,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:41:04,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:04,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:41:04,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:41:04,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:41:04,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:41:04,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:41:04,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:41:04,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:41:04,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:41:04,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:41:04,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:41:04,517 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_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2023-11-23 22:41:04,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:41:04,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:41:04,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:41:04,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:41:04,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:41:04,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2023-11-23 22:41:08,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:41:08,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:41:08,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2023-11-23 22:41:08,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/data/31c7f31d6/bf9973b1dd3c407abe39d6c198df9634/FLAG7b86ae34a [2023-11-23 22:41:08,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/data/31c7f31d6/bf9973b1dd3c407abe39d6c198df9634 [2023-11-23 22:41:08,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:41:08,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:41:08,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:08,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:41:08,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:41:08,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:08" (1/1) ... [2023-11-23 22:41:08,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef2db69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:08, skipping insertion in model container [2023-11-23 22:41:08,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:08" (1/1) ... [2023-11-23 22:41:09,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:41:09,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:09,735 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:41:09,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:09,883 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:41:09,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09 WrapperNode [2023-11-23 22:41:09,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:09,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:09,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:41:09,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:41:09,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:09,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:09,988 INFO L138 Inliner]: procedures = 244, calls = 55, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-23 22:41:09,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:09,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:41:09,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:41:09,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:41:10,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:41:10,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:41:10,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:41:10,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:41:10,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (1/1) ... [2023-11-23 22:41:10,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:10,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:10,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:10,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:41:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:41:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:41:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:41:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:41:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:41:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:41:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:41:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:41:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:41:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:41:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:41:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:41:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:41:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:41:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:41:10,202 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:41:10,472 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:41:10,476 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:41:10,919 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:41:10,972 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:41:10,973 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:41:10,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:10 BoogieIcfgContainer [2023-11-23 22:41:10,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:41:10,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:41:10,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:41:10,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:41:10,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:41:08" (1/3) ... [2023-11-23 22:41:10,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34a81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:10, skipping insertion in model container [2023-11-23 22:41:10,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:09" (2/3) ... [2023-11-23 22:41:10,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34a81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:10, skipping insertion in model container [2023-11-23 22:41:10,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:10" (3/3) ... [2023-11-23 22:41:10,994 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2023-11-23 22:41:11,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:41:11,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:41:11,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-23 22:41:11,016 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:41:11,198 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 22:41:11,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 210 transitions, 434 flow [2023-11-23 22:41:11,390 INFO L124 PetriNetUnfolderBase]: 11/208 cut-off events. [2023-11-23 22:41:11,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 22:41:11,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 208 events. 11/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2023-11-23 22:41:11,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 210 transitions, 434 flow [2023-11-23 22:41:11,412 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 189 transitions, 390 flow [2023-11-23 22:41:11,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:41:11,437 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;@3f0aa4c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:41:11,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-23 22:41:11,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:41:11,454 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-23 22:41:11,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:41:11,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:11,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:11,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:11,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:11,463 INFO L85 PathProgramCache]: Analyzing trace with hash -474306195, now seen corresponding path program 1 times [2023-11-23 22:41:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:11,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486566513] [2023-11-23 22:41:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:11,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:12,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:12,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:12,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486566513] [2023-11-23 22:41:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486566513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:12,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:12,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173107034] [2023-11-23 22:41:12,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:12,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:12,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:12,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 210 [2023-11-23 22:41:12,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 189 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-11-23 22:41:12,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:12,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 210 [2023-11-23 22:41:12,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:12,579 INFO L124 PetriNetUnfolderBase]: 100/565 cut-off events. [2023-11-23 22:41:12,580 INFO L125 PetriNetUnfolderBase]: For 63/67 co-relation queries the response was YES. [2023-11-23 22:41:12,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 565 events. 100/565 cut-off events. For 63/67 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2920 event pairs, 63 based on Foata normal form. 26/517 useless extension candidates. Maximal degree in co-relation 623. Up to 173 conditions per place. [2023-11-23 22:41:12,601 INFO L140 encePairwiseOnDemand]: 203/210 looper letters, 21 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2023-11-23 22:41:12,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 184 transitions, 426 flow [2023-11-23 22:41:12,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2023-11-23 22:41:12,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8920634920634921 [2023-11-23 22:41:12,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2023-11-23 22:41:12,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2023-11-23 22:41:12,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:12,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2023-11-23 22:41:12,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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) [2023-11-23 22:41:12,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:12,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:12,674 INFO L175 Difference]: Start difference. First operand has 188 places, 189 transitions, 390 flow. Second operand 3 states and 562 transitions. [2023-11-23 22:41:12,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 184 transitions, 426 flow [2023-11-23 22:41:12,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 184 transitions, 418 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:41:12,691 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 376 flow [2023-11-23 22:41:12,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2023-11-23 22:41:12,699 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2023-11-23 22:41:12,700 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 376 flow [2023-11-23 22:41:12,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-11-23 22:41:12,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:12,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:12,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:41:12,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:12,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:12,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1786965581, now seen corresponding path program 1 times [2023-11-23 22:41:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:12,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563018485] [2023-11-23 22:41:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:12,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:12,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563018485] [2023-11-23 22:41:12,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563018485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:12,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:12,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12024030] [2023-11-23 22:41:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:12,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:12,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:12,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 210 [2023-11-23 22:41:12,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2023-11-23 22:41:12,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:12,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 210 [2023-11-23 22:41:12,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:13,105 INFO L124 PetriNetUnfolderBase]: 85/590 cut-off events. [2023-11-23 22:41:13,105 INFO L125 PetriNetUnfolderBase]: For 19/20 co-relation queries the response was YES. [2023-11-23 22:41:13,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 590 events. 85/590 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3284 event pairs, 44 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 684. Up to 137 conditions per place. [2023-11-23 22:41:13,113 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 20 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2023-11-23 22:41:13,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 183 transitions, 418 flow [2023-11-23 22:41:13,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-23 22:41:13,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2023-11-23 22:41:13,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-23 22:41:13,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-23 22:41:13,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:13,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-23 22:41:13,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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) [2023-11-23 22:41:13,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:13,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:13,125 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 376 flow. Second operand 3 states and 560 transitions. [2023-11-23 22:41:13,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 183 transitions, 418 flow [2023-11-23 22:41:13,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 183 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:13,133 INFO L231 Difference]: Finished difference. Result has 184 places, 183 transitions, 374 flow [2023-11-23 22:41:13,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=184, PETRI_TRANSITIONS=183} [2023-11-23 22:41:13,136 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -4 predicate places. [2023-11-23 22:41:13,136 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 183 transitions, 374 flow [2023-11-23 22:41:13,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2023-11-23 22:41:13,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:13,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:13,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:41:13,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:13,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:13,140 INFO L85 PathProgramCache]: Analyzing trace with hash 32926186, now seen corresponding path program 1 times [2023-11-23 22:41:13,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:13,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731966451] [2023-11-23 22:41:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:13,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:13,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731966451] [2023-11-23 22:41:13,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731966451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:13,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:13,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:13,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790481634] [2023-11-23 22:41:13,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:13,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:13,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 210 [2023-11-23 22:41:13,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 183 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 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) [2023-11-23 22:41:13,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:13,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 210 [2023-11-23 22:41:13,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:13,677 INFO L124 PetriNetUnfolderBase]: 212/1184 cut-off events. [2023-11-23 22:41:13,677 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2023-11-23 22:41:13,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1184 events. 212/1184 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7920 event pairs, 58 based on Foata normal form. 0/1032 useless extension candidates. Maximal degree in co-relation 1552. Up to 270 conditions per place. [2023-11-23 22:41:13,696 INFO L140 encePairwiseOnDemand]: 196/210 looper letters, 37 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2023-11-23 22:41:13,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 203 transitions, 510 flow [2023-11-23 22:41:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2023-11-23 22:41:13,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.919047619047619 [2023-11-23 22:41:13,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2023-11-23 22:41:13,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2023-11-23 22:41:13,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:13,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2023-11-23 22:41:13,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2023-11-23 22:41:13,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:13,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:13,709 INFO L175 Difference]: Start difference. First operand has 184 places, 183 transitions, 374 flow. Second operand 3 states and 579 transitions. [2023-11-23 22:41:13,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 203 transitions, 510 flow [2023-11-23 22:41:13,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 203 transitions, 506 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:13,718 INFO L231 Difference]: Finished difference. Result has 186 places, 193 transitions, 458 flow [2023-11-23 22:41:13,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=186, PETRI_TRANSITIONS=193} [2023-11-23 22:41:13,721 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -2 predicate places. [2023-11-23 22:41:13,722 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 193 transitions, 458 flow [2023-11-23 22:41:13,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 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) [2023-11-23 22:41:13,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:13,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:41:13,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:13,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash -201451634, now seen corresponding path program 1 times [2023-11-23 22:41:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056525612] [2023-11-23 22:41:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:13,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:13,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056525612] [2023-11-23 22:41:13,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056525612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:13,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949525752] [2023-11-23 22:41:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:13,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:13,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:13,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:13,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-23 22:41:13,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 193 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 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) [2023-11-23 22:41:13,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:13,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-23 22:41:13,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:14,436 INFO L124 PetriNetUnfolderBase]: 271/1793 cut-off events. [2023-11-23 22:41:14,436 INFO L125 PetriNetUnfolderBase]: For 123/128 co-relation queries the response was YES. [2023-11-23 22:41:14,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 1793 events. 271/1793 cut-off events. For 123/128 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13268 event pairs, 91 based on Foata normal form. 6/1585 useless extension candidates. Maximal degree in co-relation 2117. Up to 260 conditions per place. [2023-11-23 22:41:14,461 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 24 selfloop transitions, 2 changer transitions 0/203 dead transitions. [2023-11-23 22:41:14,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 203 transitions, 531 flow [2023-11-23 22:41:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:14,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2023-11-23 22:41:14,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2023-11-23 22:41:14,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2023-11-23 22:41:14,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2023-11-23 22:41:14,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:14,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2023-11-23 22:41:14,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2023-11-23 22:41:14,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:14,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:14,473 INFO L175 Difference]: Start difference. First operand has 186 places, 193 transitions, 458 flow. Second operand 3 states and 588 transitions. [2023-11-23 22:41:14,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 203 transitions, 531 flow [2023-11-23 22:41:14,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 203 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:14,489 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 450 flow [2023-11-23 22:41:14,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2023-11-23 22:41:14,492 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-23 22:41:14,492 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 450 flow [2023-11-23 22:41:14,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 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) [2023-11-23 22:41:14,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:14,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:14,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:41:14,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:14,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:14,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1132928842, now seen corresponding path program 1 times [2023-11-23 22:41:14,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:14,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688789311] [2023-11-23 22:41:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:14,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:15,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688789311] [2023-11-23 22:41:15,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688789311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:15,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:15,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880580314] [2023-11-23 22:41:15,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:15,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:15,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-23 22:41:15,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 182.5) internal successors, (1095), 6 states have internal predecessors, (1095), 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) [2023-11-23 22:41:15,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:15,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-23 22:41:15,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:16,373 INFO L124 PetriNetUnfolderBase]: 1566/5452 cut-off events. [2023-11-23 22:41:16,374 INFO L125 PetriNetUnfolderBase]: For 16/110 co-relation queries the response was YES. [2023-11-23 22:41:16,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8316 conditions, 5452 events. 1566/5452 cut-off events. For 16/110 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 49569 event pairs, 152 based on Foata normal form. 22/4775 useless extension candidates. Maximal degree in co-relation 3645. Up to 803 conditions per place. [2023-11-23 22:41:16,435 INFO L140 encePairwiseOnDemand]: 205/210 looper letters, 47 selfloop transitions, 4 changer transitions 0/225 dead transitions. [2023-11-23 22:41:16,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 225 transitions, 614 flow [2023-11-23 22:41:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2023-11-23 22:41:16,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031746031746032 [2023-11-23 22:41:16,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2023-11-23 22:41:16,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2023-11-23 22:41:16,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:16,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2023-11-23 22:41:16,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2023-11-23 22:41:16,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 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) [2023-11-23 22:41:16,451 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 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) [2023-11-23 22:41:16,451 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 450 flow. Second operand 6 states and 1138 transitions. [2023-11-23 22:41:16,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 225 transitions, 614 flow [2023-11-23 22:41:16,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 225 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:16,458 INFO L231 Difference]: Finished difference. Result has 190 places, 193 transitions, 454 flow [2023-11-23 22:41:16,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=190, PETRI_TRANSITIONS=193} [2023-11-23 22:41:16,459 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-23 22:41:16,459 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 193 transitions, 454 flow [2023-11-23 22:41:16,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.5) internal successors, (1095), 6 states have internal predecessors, (1095), 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) [2023-11-23 22:41:16,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:16,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:41:16,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:16,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash -74971697, now seen corresponding path program 1 times [2023-11-23 22:41:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006078160] [2023-11-23 22:41:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:16,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:16,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:16,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006078160] [2023-11-23 22:41:16,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006078160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:16,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:16,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679173105] [2023-11-23 22:41:16,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:16,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:16,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:16,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:16,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:16,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 210 [2023-11-23 22:41:16,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 193 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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) [2023-11-23 22:41:16,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:16,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 210 [2023-11-23 22:41:16,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:17,037 INFO L124 PetriNetUnfolderBase]: 461/2297 cut-off events. [2023-11-23 22:41:17,037 INFO L125 PetriNetUnfolderBase]: For 340/386 co-relation queries the response was YES. [2023-11-23 22:41:17,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 2297 events. 461/2297 cut-off events. For 340/386 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 17697 event pairs, 180 based on Foata normal form. 18/2043 useless extension candidates. Maximal degree in co-relation 3441. Up to 715 conditions per place. [2023-11-23 22:41:17,063 INFO L140 encePairwiseOnDemand]: 203/210 looper letters, 32 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2023-11-23 22:41:17,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 206 transitions, 577 flow [2023-11-23 22:41:17,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-11-23 22:41:17,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2023-11-23 22:41:17,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-11-23 22:41:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-11-23 22:41:17,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:17,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-11-23 22:41:17,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 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) [2023-11-23 22:41:17,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:17,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:17,073 INFO L175 Difference]: Start difference. First operand has 190 places, 193 transitions, 454 flow. Second operand 3 states and 574 transitions. [2023-11-23 22:41:17,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 206 transitions, 577 flow [2023-11-23 22:41:17,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 206 transitions, 570 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:41:17,080 INFO L231 Difference]: Finished difference. Result has 190 places, 201 transitions, 533 flow [2023-11-23 22:41:17,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=190, PETRI_TRANSITIONS=201} [2023-11-23 22:41:17,081 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-23 22:41:17,082 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 201 transitions, 533 flow [2023-11-23 22:41:17,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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) [2023-11-23 22:41:17,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:17,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:17,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:41:17,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:17,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1927498116, now seen corresponding path program 1 times [2023-11-23 22:41:17,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:17,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656744552] [2023-11-23 22:41:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:17,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656744552] [2023-11-23 22:41:17,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656744552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:17,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:17,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869727199] [2023-11-23 22:41:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:17,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:17,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:17,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:17,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:17,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 210 [2023-11-23 22:41:17,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 201 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2023-11-23 22:41:17,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:17,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 210 [2023-11-23 22:41:17,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:17,399 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][106], [75#L914-4true, Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 235#true, 164#L880-1true, 243#(= ~num~0 0), Black: 217#true]) [2023-11-23 22:41:17,400 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2023-11-23 22:41:17,400 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2023-11-23 22:41:17,400 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-23 22:41:17,401 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-23 22:41:17,720 INFO L124 PetriNetUnfolderBase]: 516/2639 cut-off events. [2023-11-23 22:41:17,720 INFO L125 PetriNetUnfolderBase]: For 419/450 co-relation queries the response was YES. [2023-11-23 22:41:17,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 2639 events. 516/2639 cut-off events. For 419/450 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 20384 event pairs, 154 based on Foata normal form. 18/2340 useless extension candidates. Maximal degree in co-relation 4072. Up to 425 conditions per place. [2023-11-23 22:41:17,750 INFO L140 encePairwiseOnDemand]: 205/210 looper letters, 27 selfloop transitions, 3 changer transitions 0/212 dead transitions. [2023-11-23 22:41:17,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 212 transitions, 617 flow [2023-11-23 22:41:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2023-11-23 22:41:17,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926984126984127 [2023-11-23 22:41:17,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2023-11-23 22:41:17,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2023-11-23 22:41:17,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:17,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2023-11-23 22:41:17,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:17,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:17,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:17,759 INFO L175 Difference]: Start difference. First operand has 190 places, 201 transitions, 533 flow. Second operand 3 states and 584 transitions. [2023-11-23 22:41:17,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 212 transitions, 617 flow [2023-11-23 22:41:17,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 212 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:17,768 INFO L231 Difference]: Finished difference. Result has 192 places, 203 transitions, 537 flow [2023-11-23 22:41:17,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=192, PETRI_TRANSITIONS=203} [2023-11-23 22:41:17,770 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2023-11-23 22:41:17,770 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 203 transitions, 537 flow [2023-11-23 22:41:17,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2023-11-23 22:41:17,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:17,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:17,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:41:17,771 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:17,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:17,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1248398250, now seen corresponding path program 1 times [2023-11-23 22:41:17,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:17,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531801989] [2023-11-23 22:41:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:17,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:17,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:17,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531801989] [2023-11-23 22:41:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531801989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:17,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:17,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699811528] [2023-11-23 22:41:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:17,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:17,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:17,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:17,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:17,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-23 22:41:17,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 203 transitions, 537 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 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) [2023-11-23 22:41:17,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:17,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-23 22:41:17,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:18,048 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, Black: 217#true]) [2023-11-23 22:41:18,048 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is cut-off event [2023-11-23 22:41:18,048 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-23 22:41:18,048 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-23 22:41:18,049 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-23 22:41:18,081 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, 131#L894-1true, Black: 217#true]) [2023-11-23 22:41:18,082 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2023-11-23 22:41:18,082 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2023-11-23 22:41:18,082 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-23 22:41:18,082 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-23 22:41:18,091 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, Black: 217#true]) [2023-11-23 22:41:18,091 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2023-11-23 22:41:18,092 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-23 22:41:18,092 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-23 22:41:18,092 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-23 22:41:18,092 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-23 22:41:18,142 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [75#L914-4true, Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 225#(= thread2Thread1of1ForFork1_~j~0 0), 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, 175#L897-2true, Black: 217#true]) [2023-11-23 22:41:18,142 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is cut-off event [2023-11-23 22:41:18,142 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-23 22:41:18,142 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-23 22:41:18,143 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-23 22:41:18,522 INFO L124 PetriNetUnfolderBase]: 631/3499 cut-off events. [2023-11-23 22:41:18,522 INFO L125 PetriNetUnfolderBase]: For 424/476 co-relation queries the response was YES. [2023-11-23 22:41:18,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5656 conditions, 3499 events. 631/3499 cut-off events. For 424/476 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 28988 event pairs, 205 based on Foata normal form. 23/3160 useless extension candidates. Maximal degree in co-relation 5458. Up to 582 conditions per place. [2023-11-23 22:41:18,565 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 22 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2023-11-23 22:41:18,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 602 flow [2023-11-23 22:41:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:18,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-11-23 22:41:18,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9301587301587302 [2023-11-23 22:41:18,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-11-23 22:41:18,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-11-23 22:41:18,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:18,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-11-23 22:41:18,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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) [2023-11-23 22:41:18,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:18,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:18,575 INFO L175 Difference]: Start difference. First operand has 192 places, 203 transitions, 537 flow. Second operand 3 states and 586 transitions. [2023-11-23 22:41:18,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 211 transitions, 602 flow [2023-11-23 22:41:18,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 211 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:18,584 INFO L231 Difference]: Finished difference. Result has 193 places, 204 transitions, 543 flow [2023-11-23 22:41:18,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=193, PETRI_TRANSITIONS=204} [2023-11-23 22:41:18,586 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2023-11-23 22:41:18,586 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 204 transitions, 543 flow [2023-11-23 22:41:18,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 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) [2023-11-23 22:41:18,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:18,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:18,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:41:18,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:18,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1788017167, now seen corresponding path program 1 times [2023-11-23 22:41:18,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:18,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467514992] [2023-11-23 22:41:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:18,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467514992] [2023-11-23 22:41:18,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467514992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:18,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:18,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:18,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260886181] [2023-11-23 22:41:18,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:18,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:18,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:18,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:18,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:18,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 210 [2023-11-23 22:41:18,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 204 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2023-11-23 22:41:18,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:18,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 210 [2023-11-23 22:41:18,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:18,905 INFO L124 PetriNetUnfolderBase]: 51/760 cut-off events. [2023-11-23 22:41:18,906 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-11-23 22:41:18,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 760 events. 51/760 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3638 event pairs, 9 based on Foata normal form. 30/743 useless extension candidates. Maximal degree in co-relation 926. Up to 92 conditions per place. [2023-11-23 22:41:18,916 INFO L140 encePairwiseOnDemand]: 202/210 looper letters, 8 selfloop transitions, 8 changer transitions 0/185 dead transitions. [2023-11-23 22:41:18,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 185 transitions, 479 flow [2023-11-23 22:41:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2023-11-23 22:41:18,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317460317460318 [2023-11-23 22:41:18,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 587 transitions. [2023-11-23 22:41:18,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 587 transitions. [2023-11-23 22:41:18,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:18,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 587 transitions. [2023-11-23 22:41:18,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 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) [2023-11-23 22:41:18,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:18,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:18,926 INFO L175 Difference]: Start difference. First operand has 193 places, 204 transitions, 543 flow. Second operand 3 states and 587 transitions. [2023-11-23 22:41:18,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 185 transitions, 479 flow [2023-11-23 22:41:18,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 451 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-11-23 22:41:18,933 INFO L231 Difference]: Finished difference. Result has 187 places, 183 transitions, 429 flow [2023-11-23 22:41:18,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=187, PETRI_TRANSITIONS=183} [2023-11-23 22:41:18,935 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-23 22:41:18,935 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 183 transitions, 429 flow [2023-11-23 22:41:18,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2023-11-23 22:41:18,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:18,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:18,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:41:18,939 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:18,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash 332051593, now seen corresponding path program 1 times [2023-11-23 22:41:18,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:18,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646043458] [2023-11-23 22:41:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:19,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:19,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646043458] [2023-11-23 22:41:19,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646043458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:19,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:19,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:19,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60875617] [2023-11-23 22:41:19,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:19,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:19,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:19,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 210 [2023-11-23 22:41:19,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 183 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2023-11-23 22:41:19,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:19,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 210 [2023-11-23 22:41:19,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:19,221 INFO L124 PetriNetUnfolderBase]: 80/826 cut-off events. [2023-11-23 22:41:19,221 INFO L125 PetriNetUnfolderBase]: For 83/86 co-relation queries the response was YES. [2023-11-23 22:41:19,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 826 events. 80/826 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4417 event pairs, 27 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 1063. Up to 127 conditions per place. [2023-11-23 22:41:19,229 INFO L140 encePairwiseOnDemand]: 202/210 looper letters, 20 selfloop transitions, 4 changer transitions 3/185 dead transitions. [2023-11-23 22:41:19,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 492 flow [2023-11-23 22:41:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-11-23 22:41:19,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2023-11-23 22:41:19,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:19,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-11-23 22:41:19,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:19,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:19,238 INFO L175 Difference]: Start difference. First operand has 187 places, 183 transitions, 429 flow. Second operand 3 states and 565 transitions. [2023-11-23 22:41:19,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 492 flow [2023-11-23 22:41:19,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 185 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:19,244 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 417 flow [2023-11-23 22:41:19,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=417, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2023-11-23 22:41:19,246 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2023-11-23 22:41:19,246 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 417 flow [2023-11-23 22:41:19,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2023-11-23 22:41:19,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:19,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:19,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:41:19,247 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:19,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1644690895, now seen corresponding path program 1 times [2023-11-23 22:41:19,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:19,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146499662] [2023-11-23 22:41:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:19,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:19,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:19,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146499662] [2023-11-23 22:41:19,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146499662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:19,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:19,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:19,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603859920] [2023-11-23 22:41:19,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:19,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:19,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:19,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-23 22:41:19,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 417 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2023-11-23 22:41:19,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:19,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-23 22:41:19,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:19,523 INFO L124 PetriNetUnfolderBase]: 80/820 cut-off events. [2023-11-23 22:41:19,523 INFO L125 PetriNetUnfolderBase]: For 68/71 co-relation queries the response was YES. [2023-11-23 22:41:19,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 820 events. 80/820 cut-off events. For 68/71 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4430 event pairs, 37 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 1044. Up to 161 conditions per place. [2023-11-23 22:41:19,530 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 19 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2023-11-23 22:41:19,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 177 transitions, 460 flow [2023-11-23 22:41:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-11-23 22:41:19,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2023-11-23 22:41:19,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:19,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-11-23 22:41:19,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-11-23 22:41:19,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:19,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:19,540 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 417 flow. Second operand 3 states and 565 transitions. [2023-11-23 22:41:19,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 177 transitions, 460 flow [2023-11-23 22:41:19,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 177 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:19,546 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 411 flow [2023-11-23 22:41:19,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2023-11-23 22:41:19,549 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -7 predicate places. [2023-11-23 22:41:19,549 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 411 flow [2023-11-23 22:41:19,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2023-11-23 22:41:19,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:19,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:19,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:41:19,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:19,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:19,551 INFO L85 PathProgramCache]: Analyzing trace with hash -490550921, now seen corresponding path program 1 times [2023-11-23 22:41:19,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:19,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219813068] [2023-11-23 22:41:19,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:19,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219813068] [2023-11-23 22:41:19,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219813068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:41:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937366107] [2023-11-23 22:41:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:19,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:19,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:19,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:19,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:41:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:19,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:20,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:41:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937366107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:41:20,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:41:20,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-23 22:41:20,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991734845] [2023-11-23 22:41:20,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:41:20,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:41:20,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:41:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:41:20,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 210 [2023-11-23 22:41:20,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 186.88888888888889) internal successors, (1682), 9 states have internal predecessors, (1682), 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) [2023-11-23 22:41:20,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:20,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 210 [2023-11-23 22:41:20,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:20,590 INFO L124 PetriNetUnfolderBase]: 237/1555 cut-off events. [2023-11-23 22:41:20,590 INFO L125 PetriNetUnfolderBase]: For 104/108 co-relation queries the response was YES. [2023-11-23 22:41:20,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 1555 events. 237/1555 cut-off events. For 104/108 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9200 event pairs, 48 based on Foata normal form. 26/1506 useless extension candidates. Maximal degree in co-relation 2096. Up to 144 conditions per place. [2023-11-23 22:41:20,601 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 60 selfloop transitions, 9 changer transitions 0/225 dead transitions. [2023-11-23 22:41:20,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 225 transitions, 690 flow [2023-11-23 22:41:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:41:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-23 22:41:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1727 transitions. [2023-11-23 22:41:20,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9137566137566138 [2023-11-23 22:41:20,608 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1727 transitions. [2023-11-23 22:41:20,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1727 transitions. [2023-11-23 22:41:20,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:20,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1727 transitions. [2023-11-23 22:41:20,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.88888888888889) internal successors, (1727), 9 states have internal predecessors, (1727), 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) [2023-11-23 22:41:20,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 210.0) internal successors, (2100), 10 states have internal predecessors, (2100), 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) [2023-11-23 22:41:20,623 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 210.0) internal successors, (2100), 10 states have internal predecessors, (2100), 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) [2023-11-23 22:41:20,623 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 411 flow. Second operand 9 states and 1727 transitions. [2023-11-23 22:41:20,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 225 transitions, 690 flow [2023-11-23 22:41:20,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 225 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:20,629 INFO L231 Difference]: Finished difference. Result has 190 places, 182 transitions, 457 flow [2023-11-23 22:41:20,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=457, PETRI_PLACES=190, PETRI_TRANSITIONS=182} [2023-11-23 22:41:20,633 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-23 22:41:20,633 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 182 transitions, 457 flow [2023-11-23 22:41:20,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.88888888888889) internal successors, (1682), 9 states have internal predecessors, (1682), 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) [2023-11-23 22:41:20,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:20,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:20,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:20,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:41:20,857 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:20,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1372185173, now seen corresponding path program 1 times [2023-11-23 22:41:20,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:20,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064232407] [2023-11-23 22:41:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:20,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:20,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064232407] [2023-11-23 22:41:20,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064232407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:20,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:20,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464189054] [2023-11-23 22:41:20,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:20,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:20,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:20,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:20,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:20,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 210 [2023-11-23 22:41:20,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 182 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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) [2023-11-23 22:41:20,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:20,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 210 [2023-11-23 22:41:20,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:21,198 INFO L124 PetriNetUnfolderBase]: 104/1120 cut-off events. [2023-11-23 22:41:21,199 INFO L125 PetriNetUnfolderBase]: For 136/141 co-relation queries the response was YES. [2023-11-23 22:41:21,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1120 events. 104/1120 cut-off events. For 136/141 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6366 event pairs, 47 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1501. Up to 299 conditions per place. [2023-11-23 22:41:21,209 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 23 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2023-11-23 22:41:21,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 182 transitions, 508 flow [2023-11-23 22:41:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-23 22:41:21,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8952380952380953 [2023-11-23 22:41:21,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-23 22:41:21,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-23 22:41:21,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:21,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-23 22:41:21,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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) [2023-11-23 22:41:21,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:21,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:21,218 INFO L175 Difference]: Start difference. First operand has 190 places, 182 transitions, 457 flow. Second operand 3 states and 564 transitions. [2023-11-23 22:41:21,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 182 transitions, 508 flow [2023-11-23 22:41:21,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 182 transitions, 502 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:21,224 INFO L231 Difference]: Finished difference. Result has 190 places, 181 transitions, 453 flow [2023-11-23 22:41:21,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=190, PETRI_TRANSITIONS=181} [2023-11-23 22:41:21,225 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-23 22:41:21,226 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 181 transitions, 453 flow [2023-11-23 22:41:21,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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) [2023-11-23 22:41:21,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:21,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:21,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:41:21,227 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:21,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:21,228 INFO L85 PathProgramCache]: Analyzing trace with hash -558797484, now seen corresponding path program 1 times [2023-11-23 22:41:21,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:21,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576662854] [2023-11-23 22:41:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:21,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:21,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576662854] [2023-11-23 22:41:21,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576662854] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:41:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228946076] [2023-11-23 22:41:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:21,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:21,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:41:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:21,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:41:21,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:41:21,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:21,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228946076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:21,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:41:21,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-23 22:41:21,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318777732] [2023-11-23 22:41:21,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:21,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:21,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-23 22:41:21,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 181 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:21,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:21,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-23 22:41:21,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:21,861 INFO L124 PetriNetUnfolderBase]: 148/1330 cut-off events. [2023-11-23 22:41:21,861 INFO L125 PetriNetUnfolderBase]: For 93/98 co-relation queries the response was YES. [2023-11-23 22:41:21,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1330 events. 148/1330 cut-off events. For 93/98 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8033 event pairs, 65 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 1777. Up to 257 conditions per place. [2023-11-23 22:41:21,872 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 23 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-11-23 22:41:21,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 185 transitions, 516 flow [2023-11-23 22:41:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 569 transitions. [2023-11-23 22:41:21,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031746031746032 [2023-11-23 22:41:21,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 569 transitions. [2023-11-23 22:41:21,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 569 transitions. [2023-11-23 22:41:21,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:21,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 569 transitions. [2023-11-23 22:41:21,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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) [2023-11-23 22:41:21,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:21,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:21,882 INFO L175 Difference]: Start difference. First operand has 190 places, 181 transitions, 453 flow. Second operand 3 states and 569 transitions. [2023-11-23 22:41:21,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 185 transitions, 516 flow [2023-11-23 22:41:21,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 185 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:21,889 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 451 flow [2023-11-23 22:41:21,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2023-11-23 22:41:21,890 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2023-11-23 22:41:21,890 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 451 flow [2023-11-23 22:41:21,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:21,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:21,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:21,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:22,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:41:22,105 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:22,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1698710071, now seen corresponding path program 1 times [2023-11-23 22:41:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:22,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471296033] [2023-11-23 22:41:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:22,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471296033] [2023-11-23 22:41:22,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471296033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:41:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909043137] [2023-11-23 22:41:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:22,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:22,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:22,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:41:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:22,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:41:22,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:41:22,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:22,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909043137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:22,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:41:22,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-23 22:41:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216771777] [2023-11-23 22:41:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:22,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:22,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:22,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 210 [2023-11-23 22:41:22,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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) [2023-11-23 22:41:22,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:22,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 210 [2023-11-23 22:41:22,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:22,689 INFO L124 PetriNetUnfolderBase]: 129/1215 cut-off events. [2023-11-23 22:41:22,689 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2023-11-23 22:41:22,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1215 events. 129/1215 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6906 event pairs, 50 based on Foata normal form. 0/1181 useless extension candidates. Maximal degree in co-relation 1584. Up to 204 conditions per place. [2023-11-23 22:41:22,699 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 20 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2023-11-23 22:41:22,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 184 transitions, 508 flow [2023-11-23 22:41:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:22,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-11-23 22:41:22,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9174603174603174 [2023-11-23 22:41:22,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-11-23 22:41:22,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-11-23 22:41:22,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:22,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-11-23 22:41:22,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2023-11-23 22:41:22,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:22,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:22,708 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 451 flow. Second operand 3 states and 578 transitions. [2023-11-23 22:41:22,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 184 transitions, 508 flow [2023-11-23 22:41:22,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 184 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:22,714 INFO L231 Difference]: Finished difference. Result has 188 places, 179 transitions, 449 flow [2023-11-23 22:41:22,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=188, PETRI_TRANSITIONS=179} [2023-11-23 22:41:22,716 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 0 predicate places. [2023-11-23 22:41:22,716 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 179 transitions, 449 flow [2023-11-23 22:41:22,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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) [2023-11-23 22:41:22,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:22,717 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:22,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:22,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:41:22,939 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:22,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:22,939 INFO L85 PathProgramCache]: Analyzing trace with hash -588807279, now seen corresponding path program 2 times [2023-11-23 22:41:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050439507] [2023-11-23 22:41:22,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 22:41:23,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050439507] [2023-11-23 22:41:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050439507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:41:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117517964] [2023-11-23 22:41:23,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:41:23,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:23,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:23,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:41:23,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 22:41:23,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:41:23,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 22:41:23,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:23,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 22:41:23,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 22:41:23,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:23,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-23 22:41:23,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:23,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-23 22:41:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 22:41:23,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:23,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117517964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:23,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:41:23,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-23 22:41:23,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513515308] [2023-11-23 22:41:23,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:23,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:41:23,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:23,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:41:23,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:41:23,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-23 22:41:23,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 179 transitions, 449 flow. Second operand has 7 states, 7 states have (on average 182.71428571428572) internal successors, (1279), 7 states have internal predecessors, (1279), 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) [2023-11-23 22:41:23,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:23,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-23 22:41:23,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:24,085 INFO L124 PetriNetUnfolderBase]: 131/1182 cut-off events. [2023-11-23 22:41:24,085 INFO L125 PetriNetUnfolderBase]: For 76/86 co-relation queries the response was YES. [2023-11-23 22:41:24,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1802 conditions, 1182 events. 131/1182 cut-off events. For 76/86 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6390 event pairs, 28 based on Foata normal form. 4/1167 useless extension candidates. Maximal degree in co-relation 1744. Up to 152 conditions per place. [2023-11-23 22:41:24,094 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 26 selfloop transitions, 5 changer transitions 4/194 dead transitions. [2023-11-23 22:41:24,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 194 transitions, 565 flow [2023-11-23 22:41:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:41:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-23 22:41:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1303 transitions. [2023-11-23 22:41:24,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8863945578231293 [2023-11-23 22:41:24,100 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1303 transitions. [2023-11-23 22:41:24,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1303 transitions. [2023-11-23 22:41:24,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:24,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1303 transitions. [2023-11-23 22:41:24,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 186.14285714285714) internal successors, (1303), 7 states have internal predecessors, (1303), 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) [2023-11-23 22:41:24,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 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) [2023-11-23 22:41:24,110 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 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) [2023-11-23 22:41:24,110 INFO L175 Difference]: Start difference. First operand has 188 places, 179 transitions, 449 flow. Second operand 7 states and 1303 transitions. [2023-11-23 22:41:24,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 194 transitions, 565 flow [2023-11-23 22:41:24,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 194 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:24,117 INFO L231 Difference]: Finished difference. Result has 191 places, 178 transitions, 453 flow [2023-11-23 22:41:24,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=453, PETRI_PLACES=191, PETRI_TRANSITIONS=178} [2023-11-23 22:41:24,118 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2023-11-23 22:41:24,118 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 178 transitions, 453 flow [2023-11-23 22:41:24,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 182.71428571428572) internal successors, (1279), 7 states have internal predecessors, (1279), 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) [2023-11-23 22:41:24,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:24,120 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:24,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 22:41:24,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 22:41:24,329 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-23 22:41:24,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash 612862088, now seen corresponding path program 1 times [2023-11-23 22:41:24,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:24,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798370808] [2023-11-23 22:41:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:41:24,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:24,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798370808] [2023-11-23 22:41:24,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798370808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:41:24,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939874081] [2023-11-23 22:41:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:24,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:24,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:24,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:24,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:41:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:24,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:41:24,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 22:41:24,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:24,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939874081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:24,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:41:24,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-23 22:41:24,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681503757] [2023-11-23 22:41:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:24,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:24,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:24,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-23 22:41:24,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 178 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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) [2023-11-23 22:41:24,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:24,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-23 22:41:24,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:25,003 INFO L124 PetriNetUnfolderBase]: 96/1138 cut-off events. [2023-11-23 22:41:25,004 INFO L125 PetriNetUnfolderBase]: For 51/56 co-relation queries the response was YES. [2023-11-23 22:41:25,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 1138 events. 96/1138 cut-off events. For 51/56 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6263 event pairs, 39 based on Foata normal form. 1/1116 useless extension candidates. Maximal degree in co-relation 1573. Up to 178 conditions per place. [2023-11-23 22:41:25,011 INFO L140 encePairwiseOnDemand]: 208/210 looper letters, 0 selfloop transitions, 0 changer transitions 177/177 dead transitions. [2023-11-23 22:41:25,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 177 transitions, 479 flow [2023-11-23 22:41:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2023-11-23 22:41:25,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2023-11-23 22:41:25,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2023-11-23 22:41:25,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2023-11-23 22:41:25,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:25,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2023-11-23 22:41:25,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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) [2023-11-23 22:41:25,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:25,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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) [2023-11-23 22:41:25,021 INFO L175 Difference]: Start difference. First operand has 191 places, 178 transitions, 453 flow. Second operand 3 states and 576 transitions. [2023-11-23 22:41:25,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 177 transitions, 479 flow [2023-11-23 22:41:25,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 177 transitions, 470 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:25,026 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2023-11-23 22:41:25,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2023-11-23 22:41:25,027 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-23 22:41:25,027 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2023-11-23 22:41:25,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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) [2023-11-23 22:41:25,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2023-11-23 22:41:25,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2023-11-23 22:41:25,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2023-11-23 22:41:25,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2023-11-23 22:41:25,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2023-11-23 22:41:25,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2023-11-23 22:41:25,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2023-11-23 22:41:25,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2023-11-23 22:41:25,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2023-11-23 22:41:25,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2023-11-23 22:41:25,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2023-11-23 22:41:25,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2023-11-23 22:41:25,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2023-11-23 22:41:25,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2023-11-23 22:41:25,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2023-11-23 22:41:25,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2023-11-23 22:41:25,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2023-11-23 22:41:25,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 30 remaining) [2023-11-23 22:41:25,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2023-11-23 22:41:25,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2023-11-23 22:41:25,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2023-11-23 22:41:25,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2023-11-23 22:41:25,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2023-11-23 22:41:25,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2023-11-23 22:41:25,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2023-11-23 22:41:25,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2023-11-23 22:41:25,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2023-11-23 22:41:25,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2023-11-23 22:41:25,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2023-11-23 22:41:25,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2023-11-23 22:41:25,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:25,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 22:41:25,253 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:25,257 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 22:41:25,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:41:25,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:41:25 BasicIcfg [2023-11-23 22:41:25,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:41:25,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:41:25,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:41:25,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:41:25,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:10" (3/4) ... [2023-11-23 22:41:25,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:41:25,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-23 22:41:25,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-23 22:41:25,278 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-23 22:41:25,278 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 22:41:25,278 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:41:25,279 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:41:25,398 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:41:25,401 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:41:25,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:41:25,403 INFO L158 Benchmark]: Toolchain (without parser) took 16478.67ms. Allocated memory was 136.3MB in the beginning and 394.3MB in the end (delta: 257.9MB). Free memory was 101.2MB in the beginning and 281.1MB in the end (delta: -179.9MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,403 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:41:25,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 956.19ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 73.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.45ms. Allocated memory is still 136.3MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,405 INFO L158 Benchmark]: Boogie Preprocessor took 92.29ms. Allocated memory is still 136.3MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,406 INFO L158 Benchmark]: RCFGBuilder took 891.02ms. Allocated memory is still 136.3MB. Free memory was 68.7MB in the beginning and 94.0MB in the end (delta: -25.2MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,406 INFO L158 Benchmark]: TraceAbstraction took 14284.78ms. Allocated memory was 136.3MB in the beginning and 394.3MB in the end (delta: 257.9MB). Free memory was 92.7MB in the beginning and 285.8MB in the end (delta: -193.0MB). Peak memory consumption was 258.1MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,406 INFO L158 Benchmark]: Witness Printer took 138.74ms. Allocated memory is still 394.3MB. Free memory was 285.8MB in the beginning and 281.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:41:25,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 956.19ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 73.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.45ms. Allocated memory is still 136.3MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.29ms. Allocated memory is still 136.3MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 891.02ms. Allocated memory is still 136.3MB. Free memory was 68.7MB in the beginning and 94.0MB in the end (delta: -25.2MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14284.78ms. Allocated memory was 136.3MB in the beginning and 394.3MB in the end (delta: 257.9MB). Free memory was 92.7MB in the beginning and 285.8MB in the end (delta: -193.0MB). Peak memory consumption was 258.1MB. Max. memory is 16.1GB. * Witness Printer took 138.74ms. Allocated memory is still 394.3MB. Free memory was 285.8MB in the beginning and 281.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 915]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 916]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: 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 5 procedures, 292 locations, 30 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: 14.0s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 694 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1141 IncrementalHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 111 mSDtfsCounter, 1141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 863 GetRequests, 816 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=8, InterpolantAutomatonStates: 64, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 2333 NumberOfCodeBlocks, 2267 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2417 ConstructedInterpolants, 0 QuantifiedInterpolants, 3372 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1662 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 244/261 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 22:41:25,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe26584-b926-464e-81ab-d79141286b86/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE